What is claimed is:
1. A composition for the oxidation dyeing of keratinous fibers, wherein said composition comprises, in a medium suitable for dyeing:
as oxidation base, at least one pyrazoloazole compound of formula (I) or at least one acid addition salt thereof:
14
in which:
R1 represents: a hydrogen atom; a linear or branched C1-C20 alkyl radical, optionally substituted by 1 or 2 radicals R chosen from a halogen atom, a nitro radical, a cyano radical, a hydroxyl radical, an alkoxy radical, an aryloxy radical, an amino radical, an alkylamino radical, an acylamino radical, a carbamoyl radical, a sulphonamido radical, a sulphamoyl radical, an imido radical, an alkylthio radical, an arylthio radical, an aryl radical, a (C1-C4)alkoxy-carbonyl radical and an acyl radical; an aryl radical optionally substituted by 1 or 2 radicals R as defined above; a 5- or 6-membered heterocycle containing at least one nitrogen, oxygen or sulphur atom wherein said heterocycle is optionally substituted by 1 or 2 radicals R as defined above;
when R1 denotes a C1-C4 alkyl radical, an aryl radical or a 5- or 6-membered heterocycle, it can be connected to the carbon atom of the pyrazole via an oxygen, nitrogen or sulphur atom;
R1 can, additionally, denote a halogen atom; an acyl radical; a sulphonyl radical; a sulphinyl radical; a phosphonyl radical; a carbamoyl radical; a sulphamoyl radical; a cyano radical; a siloxy radical; an amino radical; an acylamino radical; an acyloxy radical; a carbamoyloxy radical; a sulphonamide radical; an imide radical; a ureido radical; a sulphamoylamino radical; a (C1-C4)alkoxy-carbonylamino radical; an aryloxycarbonylamino radical; a (C1-C4)alkoxy-carbonyl radical; an aryloxycarbonyl radical; a carboxyl radical; or a hydroxyl radical;
R2 is a hydrogen atom; a C1-C4 alkyl radical; a C1-C4 monohydroxyalkyl radical; a C2-C4 polyhydroxyalkyl radical; a C1-C4 aminoalkyl radical; a (CH2)pX(CH2)qOR radical in which p and q are identical or different integers ranging from 1 to 3, R represents a hydrogen atom or a methyl radical, and X denotes an oxygen atom or an NR group in which R represents a hydrogen atom or a methyl radical; a (C1-C4)alkoxy(C2-C4)alkyl radical; or a di(C1-C4)alkylamino(C1-C4)alkyl radical;
Za, Zb and Zc represent, independently of one another, a nitrogen atom or a carbon atom carrying an R3 or R4 radical, where R3 and R4 independently have the same meanings as those indicated above for R1, with the proviso that at least one of the Za, Zb and Zc radicals is other than a carbon atom; R3 and R4 can also together form a substituted or unsubstituted aromatic ring, such as a phenyl ring.
2. A composition according to claim 1, wherein said keratinous fibers are human keratinous fibers.
3. A composition according to claim 2, wherein said human keratinous fibers are hair.
4. A composition according to claim 1, wherein, when R1 represents a linear or branched C1-C20 alkyl radical substituted by one or two radicals R wherein R is an aryl radical or when R1 is an aryl radical, said aryl radical is phenyl or naphthyl.
5. A composition according to claim 1, wherein R1 represents a 5 or 6 membered heterocycle containing at least one nitrogen, oxygen or sulphur atom and wherein said heterocycle is pyridyl, quinolyl, pyrrolyl, morpholyl, furanyl, tetrahydorfuranyl, pyrazolyl, triazolyl, thiazolyl, oxazolyl, imidazolyl or thiadiazolyl.
6. A composition according to claim 1, wherein R1 is a halogen atom and wherein said halogen is bromine, chlorine, or fluorine.
7. A composition according to claim 1, wherein R1 is a hydrogen atom; a linear or branched C1-C4 alkyl radical; a phenyl ring; a phenyl ring substituted by a halogen atom, a C1-C4 alkyl radical, a C1-C4 alkoxy radical, a nitro radical, an amino radical, a trifluoromethyl radical or by a C1-C4 alkylamino radical; a benzyl radical; a benzyl radical substituted by a halogen atom, a C1-C4 alkyl radical, a C1-C4 alkoxy radical, a nitro radical, an amino radical, a trifluoromethyl radical or by a C1-C4 alkylamino radical; a heterocycle chosen from thiophene, furan or pyridine rings; a trifluoromethyl radical; a (CH2)pX(CH2)qOR radical in which p and q are identical or different integers ranging from 1 to 3, R represents a hydrogen atom or a methyl radical and X denotes an oxygen atom or an NR radical in which R denotes a hydrogen atom or a methyl radical; a C1-C4 hydroxyalkyl radical; a C1-C4 aminoalkyl radical; a C1-C4 alkylamino radical; a di(C1-C4)alkylamino radical; an arylamino radical; an alkoxy radical chosen from methoxy, ethoxy and phenoxy; a halogen atom chosen from bromine, chlorine and fluorine; a carboxyl radical; a C1-C4 alkoxycarbonyl radical; a phenyloxycarbonyl radical; a methylthio radical; an ethylthio radical; a phenylthio radical; a methanesulphonyl radical; a cyano radical; an amino radical; or a hydroxyl radical.
8. A composition according to claim 7, wherein R1 is a hydrogen atom; an alkyl radical chosen from methyl, ethyl, isopropyl and tert-butyl radicals; a halogen atom chosen from chlorine and fluorine; a phenyl radical; a toluyl radical; a 4-chlorophenyl radical; a 4-methoxyphenyl radical; a 3-methoxyphenyl radical; a 2-methoxyphenyl radical; a benzyl radical; a heterocycle chosen from pyridyl, furyl and thienyl rings; a trifluoromethyl radical, a hydroxymethyl radical; an aminomethyl radical; a methoxy radical; an ethoxy radical; a methylamino radical; an ethylamino radical; a dimethylamino radical; a carboxyl radical; a methoxycarbonyl radical; an ethoxycarbonyl radical or a cyano radical.
9. A composition according to claim 8, wherein R1 a hydrogen atom; a chlorine atom; a methyl radical; an ethyl radical; a phenyl radical; a toluyl radical; a 4-chlorophenyl radical; a 4-methoxyphenyl radical; a benzyl radical; a trifluoromethyl radical; a methoxy radical; an ethoxy radical; a carboxyl radical; a methylamino radical; a dimethylamino radical or a cyano radical.
10. A composition according to claim 1, wherein R2 is of a hydrogen atom; a methyl radical or a -hydroxyethyl radical.
11. A composition according to claim 10, wherein R2 is a hydrogen atom.
12. A composition according to claim 1, wherein R3 and R4 are independently a hydrogen atom; a hydroxyl radical; an amino radical; a linear or branched C1-C4 alkyl radical; a trifluoromethyl radical; a phenyl ring; a phenyl ring substituted by one or two radicals R chosen from a halogen atom, a C1-C4 alkyl radical, a C1-C4 alkoxy radical, a hydroxyl radical, a carboxyl radical, a nitro radical, a C1-C4 alkylthio radical, a methylenedioxy radical, an amino radical, a trifluoromethyl radical and a C1-C4 alkylamino radical; a benzyl radical; a benzyl radical substituted by a halogen atom, a methyl or isopropyl radical or a methoxy radical; a C1-C4 monohydroxyalkyl radical; a C1-C4 aminoalkyl radical; a (C1-C4)alkylamino(C1-C4)alkyl radical; an alkoxy radical chosen from methoxy, ethoxy and phenoxy radicals; a methylthio radical; an ethylthio radical; a phenylthio radical; a methanesulphonyl radical; or a substituted or unsubstituted aromatic ring formed jointly by R3 and R4.
13. A composition according to claim 12, wherein R3 and R4 jointly form a substituted or unsubstituted aromatic ring, said ring being a phenyl ring, pyridyl ring or phenyl ring substituted by a sulphonyl radical, a halogen atom, a C1-C4 alkoxy radical, a C1-C4 alkyl radical, a nitro radical, a cyano radical, an amino radical, a C1-C4 alkylamino radical or a trifluoromethyl radical.
14. A composition according to claim 12, wherein R3 and R4 are independently a hydrogen atom; an alkyl radical chosen from methyl, ethyl, isopropyl, n-propyl and tert-butyl radicals; a phenyl ring; a toluyl ring; a 2-, 3- or 4-chlorophenyl ring; a 3- or 4-hydroxyphenyl ring; a 3- or 4-aminophenyl ring; a 3- or 4-methoxyphenyl ring; a 4-trifluoromethylphenyl ring; a benzyl ring; a trifluoromethyl radical; a hydroxymethyl radical; a hydroxyethyl radical; a hydroxyisopropyl radical; an aminomethyl or aminoethyl radical; a methoxy or ethoxy radical; a methylthio or ethylthio radical; or a substituted or unsubstituted aromatic ring formed jointly by R3 and R4.
15. A composition according to claim 14, wherein R3 and R4 jointly form a substituted or unsubstituted aromatic ring, said ring being a phenyl, toluyl, sulphonylphenyl or chlorophenyl ring.
16. A composition according to claim 14, wherein R3 and R4 independently are a hydrogen atom; a methyl radical; an ethyl radical; an isopropyl radical; a phenyl ring; a 4-chlorophenyl ring; a 4-methoxyphenyl ring; a 4-aminophenyl ring; a methoxy or ethoxy radical; a methylthio or ethylthio radical; or R3 and R4 jointly form a phenyl ring.
17. A composition according to claim 1, wherein said at least one compound of formula (I) is chosen from:
i) pyrazolo1,5-b–1,2,4-triazoles of formula (Ia) and the acid addition salts thereof:
15
ii) pyrazolo2,2-c–1,2,4-triazoles of formula (Ib) and the acid addition salts thereof:
16
iii) pyrazolotetrazoles of formula (Ic) and the acid addition salts thereof:
17
iv) pyrazolo1,5-aimidazoles of formula (Id) and the acid addition salts thereof:
18
v) pyrazolo5,1-epyrazoles of formula (Ie) and the acid addition salts thereof:
19
vi) pyrazolo5,1-e-1,2,3-triazoles of formula (If) and the aicd addition salts thereof:
20
in which R1, R2, R3 and R4 have the same meanings as those indicated in claim 1.
18. A composition according to claim 17, wherein said pyrazolo1,5-b-1,2,4-triazoles of formula (Ia) or said pyrazolo3,2-c-1,2,4-triazoles of formula (Ib) are chosen from those compounds in which:
R1 is a hydrogen atom or a methyl, trifluoromethyl, carboxyl, phenyl, ethoxy, cyano, ethylthio, amino or hydroxyl radical;
R2 is a hydrogen atom; and
R3 is a hydrogen atom or a methyl, -aminoethyl, ethyl, isopropyl, phenyl, -hydroxyethyl, methylthio or ethoxy radical.
19. A composition according to claim 17, wherein said pyrazolotetrazoles of formula (Ic) are chosen from those compounds in which:
R1 is a hydrogen atom or a methyl, trifluoromethyl, carboxyl, phenyl, ethoxy or cyano radical; and
R2 is a hydrogen atom.
20. A composition according to claim 17, wherein said pyrazolo1,5-aimidazoles of formula (Id) are chosen from those compounds in which:
R1 is a hydrogen atom or a methyl, trifluoromethyl, carboxyl, phenyl, ethoxy, cyano, amino, ethylthio or hydroxyl radical;
R2 is a hydrogen atom; and
R3 and R4 are respectively a hydrogen atom and a hydrogen atom, a hydrogen atom and a methyl radical, a methyl radical and a hydrogen atom, a hydrogen atom and a phenyl radical, or a hydroxyl radical and a hydrogen atom; or R3 and R4 jointly form a phenyl ring.
21. A composition according to claim 17, wherein said pyrazolo5,1-epyrazoles of formula (Ie) are chosen from those compounds in which:
R1 is a hydrogen atom or a methyl, trifluoromethyl, carboxyl, phenyl, ethoxy or cyano radical;
R2 is a hydrogen atom; and
R3 and R4 respectively are a hydrogen atom and a methyl radical, a methyl radical and a hydrogen atom, a methyl radical and a methyl radical, a hydrogen atom and a phenyl radical, or a hydrogen atom and an amino radical.
22. A composition according to claim 17, wherein said pyrazolo5,1-e-1,2,3-triazoles of formula (If) are chosen from those compounds in which:
R1 is a hydrogen atom or a methyl, trifluoromethyl, carboxyl, phenyl, ethoxy or cyano radical;
R2 is a hydrogen atom; and
R3 is a hydrogen atom or a methyl radical.
23. A composition according to claim 1, wherein said at least one compound of formula (I) is chosen from:
7-amino-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2,6-dimethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-methylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino -2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3,6-dimethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-trifluoromethyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-(trifluoromethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-methylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methylpyrazolo5,1-etetrazole;
7-amino-6-phenylpyrazolo5,1-etetrazole;
7-amino-6-carboxypyrazolo5,1-etetrazole;
7-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-2-phenylpyrazolo1,5-aimidazole;
7-aminopyrazolo1,5-abenzimidazole;
7-amino-6-methylpyrazolo1,5-aimidazole;
7-amino-2,6-dimethylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-methylpyrazolo1,5-abenzimidazole;
7-amino-6-phenylpyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-aimidazole;
7-amino-2,6-diphenylpyrazolo1,5-aimidazole;
7-amino-6-phenylpyrazolo1,5-abenzimidazole;
7-amino-6-carboxypyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-aimidazole;
-7-amino-6-carboxypyrazolo1,5-abenzimidazole;
7-amino-6-ethoxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-ethoxypyrazolo1,5-abenzimidazole;
7-amino-6-(trifluoromethyl)pyrazolo1,5-abenzimidazole;
7-amino-6-aminopyrazolo1,5-aimidazole;
7-amino-6-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-6-amino-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-aminopyrazolo1,5-abenzimidazole;
7-amino-6-(ethylthio)pyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-hydroxypyrazolo1,5-aimidazole;
6,7-diamino-2-hydroxypyrazolo1,5-aimidazole;
5,8-diamino-4-methylpyrazolo5,1-epyrazole;
5,7,8-triamino-4-methylpyrazolo5,1-epyrazole;
6-amino-5-methylpyrazolo5,1-e-1,2,3-triazole;
6-amino-5-phenylpyrazolo5,1-e-1,2,3-triazole;
and the acid addition salts thereof.
24. A composition according to claim 17, wherein said pyrazolo1,5-b-1,2,4-triazoles of formula (Ia) are chosen from:
7-amino-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2,6-dimethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-b-1,24-triazole;
7-amino-6-carboxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-methylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
and the acid addition salts thereof.
25. A composition according to claim 17, wherein said pyrazolo3,2-c-1,2,4-triazoles of formula (Ib) are chosen from:
7-amino-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3,6-dimethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-hydroxyethyl)pyrazolo3,2- c-1,2,4-triazole;
7-amino-6-trifluoromethyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-(trifluoromethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-methylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
and the acid addition salts thereof.
26. A composition according to claim 17, wherein said pyrazolotetrazoles of formula (Ic) are chosen from:
7-amino-6-methylpyrazolo5,1-etetrazole;
7-amino-6-phenylpyrazolo5,1-etetrazole;
7-amino-6-carboxypyrazolo5,1-etetrazole;
and the acid addition salts thereof.
27. A composition according to claim 17, wherein said pyrazolo1,5-aimidazoles of formula (Id) are chosen from:
7-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-2-phenylpyrazolo1,5-aimidazole;
7-aminopyrazolo1,5-abenzimidazole;
7-amino-6-methylpyrazolo1,5-aimidazole;
7-amino-2,6-dimethylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-methylpyrazolo1,5-abenzimidazole;
7-amino-6-phenylpyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-aimidazole;
7-amino-2,6-diphenylpyrazolo1,5-aimidazole;
7-amino-6-phenylpyrazolo1,5-abenzimidazole;
7-amino-6-carboxypyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-carboxypyrazolo1,5-abenzimidazole;
7-amino-6-ethoxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-ethoxypyrazolo1,5-abenzimidazole;
7-amino-6-(trifluoromethyl)pyrazolo1,5-abenzimidazole;
7-amino-6-aminopyrazolo1,5-aimidazole;
7-amino-6-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-6-amino-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-aminopyrazolo1,5-abenzimidazole;
7-amino-6-(ethylthio)pyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-hydroxypyrazolo1,5-aimidazole;
6,7-diamino-2-hydroxypyrazolo1,5-aimidazole;
and the acid addition salts thereof.
28. A composition according to claim 17, wherein said pyrazolo5,1-epyrazoles of formula (Ie) are chosen from:
5,8-diamino-4-methylpyrazolo5,1-epyrazole;
5,7,8-triamino-4-methylpyrazolo5,1-epyrazole;
and the acid addition salts thereof.
29. A composition according to claim 17, wherein said pyrazolo5,1-e-1,2,3-triazoles of formula (If) are chosen from:
6-amino-5-methylpyrazolo5,1-e-1,2,3-triazole;
6-amino-5-phenylpyrazolo5,1-e-1,2,3-triazole;
and the acid addition salts thereof.
30. A composition according to claim 1, wherein said at least one compound of formula (I) is present in an amount ranging from 0.0005 to 12% by weight relative to the total weight of said composition.
31. A composition according to claim 30, wherein said at least one compound of formula (I) is present in an amount ranging from 0.005 to 6% by weight relative to the total weight of said composition.
32. A composition according to claim 1, wherein said medium suitable for dyeing comprises water, a wateralcohol mixture or a mixture of water and of at least one organic solvent.
33. A composition according to claim 32, wherein said at least one organic solvent is a C1-C4 lower alkanol, a glycerol, a glycol, a glycol ether, an aromatic alcohol, or a mixture thereof.
34. A composition according to claim 32, wherein said at least one organic solvent represents from 1 to 40% by weight relative to the total weight of said composition.
35. A composition according to claim 1, wherein said composition has a pH ranging from 3 to 12.
36. A composition according to claim 35, wherein said composition has a pH ranging from 5 to 11.
37. A composition according to claim 1, wherein said composition further contains at least one coupler.
38. A composition according to claim 37, wherein said at least one coupler is chosen from an aromatic diamine, a meta-phenylenediamine, a meta-aminophenol, a meta-diphenol and a heterocyclic coupler.
39. A composition according to claim 38, wherein said at least one coupler is chosen from 2-methyl-5-aminophenol, 5-N-(-hydroxyethyl)amino-2-methylphenol, 3-aminophenol, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxy-benzene, 2,4-diamino-1-(-hydroxyethyloxy)benzene, 2-amino-4-(-hydroxyethyl)amino-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)-propane, sesamol, -naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo1,5-b-1,2,4-triazole, 2,6-dimethyl3,2-c-1,2,4-triazole, 6-methylpyrazolo-1,5-abenzimidazole, and the acid addition salts thereof.
40. A composition according to claim 37, wherein said at least one coupler is present in an amount ranging from 0.0001 to 10% by weight relative to the total weight of said composition.
41. A composition according to claim 40, wherein said at least one coupler is present in an amount ranging from 0.005 to 5% by weight relative to the total weight of said composition.
42. A composition according to claim 1, wherein said composition further comprises at least one additional oxidation base.
43. A composition according to claim 42, wherein said at least one additional oxidation base is chosen from a para-phenylenediamine, a bisphenylalkylenediamine, a para-aminophenol, an ortho-aminophenol and a heterocyclic base other than said pyrazoloazole compounds of formula (I).
44. A composition according to claim 42, wherein said at least one additional oxidation base is present in an amount ranging from 0.0005 to 12% by weight relative to the total weight of said composition.
45. A composition according to claim 1, wherein said at least one acid addition salt is a hydrochloride, a hydrobromide, a sulphate, a citrate, a succinate, a tartrate, a tosylate, a benzenesulphonate, a lactate or an acetate.
46. A composition according to claim 1, wherein said composition additionally contains at least one direct dye.
47. A method for dyeing keratinous fibers comprising contacting said fibers with at least one oxidation dye composition according to claim 1, in the presence of air or an oxidizing agent, for a time sufficient to achieve color development.
48. The method according to claim 47, wherein said keratinous fibers are human keratinous fibers.
49. The method according to claim 48, wherein said human keratinous fibers are hair.
50. A method according to claim 47, wherein said color development is achieved without an oxidizing agent, but with contact only with atmospheric oxygen.
51. The method according to claim 47, wherein said dye composition is mixed at the time of use with an oxidizing composition comprising, in a medium suitable for dyeing, at least one oxidizing agent present in an amount sufficient for color development.
52. The method according to claim 47, wherein said dye composition additionally contains at least one oxidation catalyst.
53. The method according to claim 52, wherein said at least one oxidation catalyst is a metal salt.
54. The method according to claim 53, wherein said metal salt is manganese, cobalt, copper, iron, silver or zinc.
55. The method according to claim 53, wherein said metal salt is manganese diacetate tetrahydrate, manganese dichloride, manganese triacetate or a hydrate thereof, manganese trichloride, zinc dichloride, zinc diacetate dihydrate, zinc carbonate, zinc dinitrate, zinc sulphate, iron dichloride, iron sulphate, iron diacetate, cobalt diacetate tetrahydrate, cobalt carbonate, cobalt dichloride, cobalt sulphate heptahydrate, cupric chloride or ammoniacal silver nitrate.
56. The method according to claim 53, wherein said metal salt is present in an amount ranging from 0.001 to 4% by weight relative to the total weight of said dye composition.
57. The method according to claim 56, wherein said metal salt is present in an amount ranging from 0.005 to 2% by weight relative to the total weight of said dye composition.
58. The method according to claim 51, wherein said at least one oxidizing agent is hydrogen peroxide, urea hydrogen peroxide, an alkali metal bromate, a persalt, or an enzyme.
59. The method according to claim 58, wherein said persalt is a perborate or a persulphate.
60. The method according to claim 58, wherein said enzyme is a peroxidase or an oxidoreductase with 2 unpaired electrons.
61. The method according to claim 47, wherein said color is developed at acidic, neutral, or alkaline pH with an oxidizing agent which is added to said oxidation dyeing composition at the time of application or which is present in an oxidizing composition that is applied:
(i) separately from the dye composition at the same time that said dye composition is applied to said fibers, or
(ii) sequentially with the dye composition.
62. The method according to claim 47, wherein said time ranges from 3 to 50 minutes.
63. The method according to claim 62, wherein said time ranges from 5 to 30 minutes.
64. The method according to claim 51, wherein said oxidizing composition has a pH ranging from 3 to 12.
65. The method according to claim 64, wherein said oxidizing composition has a pH ranging from 5 to 11.
66. The composition according to claim 1, said composition being in the form of a liquid, a cream, a gel or any other form suitable for dyeing keratinous fibers.
67. A multi-compartment dyeing device or kit for dyeing keratin fibers, comprising at least two compartments,
a first compartment of which contains a dyeing composition according to claim 1 and
a second compartment of which contains an oxidizing composition.
68. A compound of formula (I) chosen from the compounds of the following formulae (Ia) to (If):
21
in which R1, R2, R3 and R4 have the same meanings as those indicated in claim 1 for R1, R2, R3 and R4 of the formula (I); it being understood that:
in the compounds of formula (Ib):
i) when R1 represents a methyl radical and when R2 represents a hydrogen atom, then the R3 radical is other than a methyl radical or than a (CH2)3SO2(CH2)15CH3 or CH(CH3)CH2SO2(CH2)11CH3 radical;
ii) when R1 represents a tert-butyl radical and when R2 represents a hydrogen atom, then R3 is other than a (CH2)3SO2(CH2)11CH3 radical;
in the compounds of formula (Id):
when R3 and R4 together form a benzene ring and when R2 represents a hydrogen atom, then R1 is other than a methyl, CONH2 or carboxyl radical;
when R3 and R4 together form a benzene ring substituted by a sulphonyl radical in the 4 position and when R2 represents a hydrogen atom, then R1 is other than a phenyl radical, than a (CH2)16CH3 radical or than a COOH radical;
when R3 and R4 together form a benzene ring substituted by a carboxyl radical in the 4 position and when R2 represents a hydrogen atom, then R1 is other than a carboxyl radical.
69. A compound of formula (I) according to claim 68, wherein said compound is:
7-amino-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2,6-dimethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-methylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3,6-dimethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-trifluoromethyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-(trifluoromethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-methylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-ethylpyrazolo3,2-c-1,l 2,4-triazole;
6,7-diamino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methylpyrazolo5,1-etetrazole;
7-amino-6-phenylpyrazolo5,1-etetrazole;
7-amino-6-carboxypyrazolo5,1-etetrazole;
7-aminopyrazolo1,5-aimidazole;
7-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-2-phenylpyrazolo1,5-aimidazole;
7-aminopyrazolo1,5-abenzimidazole;
7-amino-6-methylpyrazolo1,5-aimidazole;
7-amino-2,6-dimethylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-phenylpyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-aimidazole;
7-amino-2,6-diphenylpyrazolo1,5-aimidazole;
7-amino-6-phenylpyrazolo1,5-abenzimidazole;
7-amino-6-carboxypyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-ethoxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-ethoxypyrazolo1,5-abenzimidazole;
7-amino-6-(trifluoromethyl)pyrazolo1,5-abenzimidazole;
7-amino-6-aminopyrazolo1,5-aimidazole;
7-amino-6-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-6-amino-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-aminopyrazolo1,5-abenzimidazole;
7-amino-6-(ethylthio)pyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-hydroxypyrazolo1,5-aimidazole;
6,7-diamino-2-hydroxypyrazolo1,5-aimidazole;
5,8-diamino-4-methylpyrazolo5,1-epyrazole;
5,7,8-triamino-4-methylpyrazolo5,1-epyrazole;
6-amino-5-methylpyrazolo5,1-e-1,2,3-triazole;
6-amino-5-phenylpyrazolo5,1-e-1,2,3-triazole;
or an acid addition salt thereof.
70. A compound of formula (Ia) according to claim 68, wherein said compound is:
7-amino-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-2,6-dimethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-methylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-ethylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-ethylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-isopropylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-aminoethyl )pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-methyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethylthio-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-carboxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-phenyl-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
6,7-diamino-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-aminoethyl)pyrazolo1,5-b-1,2,4-triazole;
7-amino-6-ethoxy-2-(2-hydroxyethyl)pyrazolo1,5-b-1,2,4-triazole;
or an acid addition salt thereof.
71. A compound of formula (Ib) according to claim 68, wherein said compound is:
7-amino-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-3,6-dimethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-methyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-phenyl-3-(methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethylthio-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-trifluoromethyl-3- (methylthio)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-(trifluoromethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-carboxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-methylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-ethylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-phenylpyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-methylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-ethylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-isopropylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-phenylpyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
7-amino-6-ethoxy-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-aminoethyl)pyrazolo3,2-c-1,2,4-triazole;
6,7-diamino-3-(2-hydroxyethyl)pyrazolo3,2-c-1,2,4-triazole;
or an acid addition salt thereof.
72. A compound of formula (Ic) according to claim 68, wherein said compound is:
7-amino-6-methylpyrazolo5,1-etetrazole;
7-amino-6-phenylpyrazolo5,1-etetrazole;
7-amino-6-carboxypyrazolo5,1-etetrazole;
or an acid addition salt thereof.
73. A compound of formula (Id) according to claim 68, wherein said compound is:
7-aminopyrazolo1,5-aimidazole;
7-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-2-phenylpyrazolo1,5-aimidazole;
7-aminopyrazolo1,5-abenzimidazole;
7-amino-6-methylpyrazolo1,5-aimidazole;
7-amino-2,6-dimethylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-phenylpyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-methylpyrazolo1,5-aimidazole;
7-amino-2,6-diphenylpyrazolo1,5-aimidazole;
7-amino-6-phenylpyrazolo1,5-abenzimidazole;
7-amino-6-carboxypyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-carboxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-ethoxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-ethoxypyrazolo1,5-abenzimidazole;
7-amino-6-(trifluoromethyl)pyrazolo1,5-abenzimidazole;
7-amino-6-aminopyrazolo1,5-aimidazole;
7-amino-6-amino-2-methylpyrazolo1,5-aimidazole;
7-amino-6-amino-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-aminopyrazolo1,5-abenzimidazole;
7-amino-6-(ethylthio)pyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-methylpyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-phenylpyrazolo1,5-aimidazole;
7-amino-6-methyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-phenyl-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethoxy-2-hydroxypyrazolo1,5-aimidazole;
7-amino-6-ethylthio-2-hydroxypyrazolo1,5-aimidazole;
6,7-diamino-2-hydroxypyrazolo1,5-aimidazole;
or an acid addition salt thereof.
74. A compound of formula (Ie) according to claim 68, wherein said compound is:
5,8-diamino-4-methylpyrazolo5,1-epyrazole;
5,7,8-triamino-4-methylpyrazolo5,1-epyrazole;
or an acid addition salt thereof.
75. A compound of formula (If) according to claim 68, wherein said compound is:
6-amino-5-methylpyrazolo5,1-e-1,2,3-triazole;
6-amino-5-phenylpyrazolo5,1-e-1,2,3-triazole;
or an acid addition salt thereof.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Vehicle (10) comprising a bearing frame (12) of the tubular trestle type, two front steered wheels (14, 16), two rear wheels (18, 20) with fixed axis (144), an engine unit (22), steering means (24) through which it is possible to operate on the front wheels (14, 16), a front suspension unit (26, connecting the frame (12) to the front wheels (14, 16), a rear suspension unit (28), connecting the frame (12) to the rear wheels (18, 20), a transmission unit, interposed between the engine unit (22) and axle shafts of the rear wheels (18, 20), a seat (44) for the driver of the vehicle (10), arranged at a central position with respect to the vehicle (10), and at least two seats (44\u2032) for the passengers of the vehicle (10) adjacent to each other, arranged laterally and receded according to a predefined distance with respect to the seat (44) for the driver of the vehicle (10), characterised in that the engine unit (22) is elastically constrained with respect to the rear suspension unit (28) through at least one suspension mechanism (72, 74; 84, 90, 92), which provides a first level for filtering the stresses generated by the operation of the engine unit (22) and so that the rear suspension unit (28) is capable of supporting the overall weight of the engine unit (22), and in that the rear suspension unit (28) is elastically constrained to the frame (12) through at least one auxiliary suspension mechanism (96, 98) which, alongside the elasticity of the tyres of the rear wheels (18, 20), forms a second level for filtering the stresses generated by the operation of the engine unit (22) said suspension mechanism of the engine unit (22) comprising a pair of lateral elastic support pins (72, 74), directed according to the same axis which substantially passes through the centre of mass (70) of the engine unit (22) and arranged so as to support each about half the weight of said engine unit (22) wherein said suspension mechanism further comprises reaction rod (84) whose lower end (86) is constrained, by means of a first elastic bushing (90), to the rear suspension unit (28) of the vehicle (10), and whose upper end (88) is constrained, by means of a second elastic bushing (92), to the engine unit (22) through an adapter bracket (94), said reaction rod (84) being capable of supporting the share part of weight of the engine unit (22) not supported by the lateral elastic support pins (72, 74) and reacting to the drive torque of said engine unit (22).
2. Vehicle (10) according to claim 1, characterised in that said elastic support pins (72, 74) are constrained to the engine unit (22) respectively by means of a first pair of brackets (76, 78), arranged at the left side with respect to the centreline axis (Z-Z) of the vehicle (10), and a second pair of brackets (80, 82), arranged on the right side with respect to the centreline axis (Z-Z) of the vehicle (10) with reference to the direction of motion of said vehicle (10), the brackets (76, 80) arranged towards the outer sides of the vehicle (10) being integral with the rear suspension unit (28), while the brackets (78, 82) arranged internally towards the centreline axis (Z-Z) of the vehicle (10) being integral with the engine unit (22).
3. Vehicle (10) according to claim 1, characterised in that said auxiliary suspension mechanism comprises a front elastic bushing (96) which provides the elastic constraint between the rear suspension unit (28) and the frame (12) through a bracket (98), said auxiliary suspension mechanism also operating through the vertical elasticity of the tyres of the rear wheels (18, 20).
4. Vehicle (10) according to claim 1, characterised in that the distance (A) between the point of constraint (68) of the rear suspension unit (28) to the frame (12) and the centre of mass (70) of the engine unit (22), measured in the direction of the centreline axis (Z-Z) of the vehicle (10), is greater than the distance (B) between said centre of mass (70) and the axle (144) of the rear wheels (18, 20), also measured in the direction of the centreline axis (Z-Z) of the vehicle (10).
5. Vehicle (10) according to claim 1, characterised in that the rear suspension unit (28) is of the rigid bridge (124) type and that the front suspension unit (26) instead has an independent wheels scheme of the \u201cMcPherson\u201d type.
6. Vehicle (10) according to claim 5, characterised in that the rear suspension unit (28) is provided with a leaf-spring-shaped flexible element (122), arranged transversely with respect to the centreline axis (Z-Z) of the vehicle (10) and arranged at the rear end of the bridge (124) of said rear suspension unit (28), said leaf-spring-shaped flexible element (122) being capable of vertically guiding and transversely constraining the bridge (124) in the respective rebound and roll motions with respect to the frame (12).
7. Vehicle (10) according to claim 6, characterised in that said leaf-spring-shaped flexible element (122) is provided, at the opposite ends thereof, with two cylindrical cavities (126) suitable to accommodate respective elastic bushings (128) for connection between said leaf-spring-shaped flexible element (122) and the bridge (124) by means of pins (130), a third elastic bushing (132), constrained to the centre of said leaf-spring-shaped flexible element (122), constraining the centreline of said leaf-spring-shaped flexible element (122) to the frame (12) by means of a bracket (136) and preventing the displacement of the frame (12) in transverse direction of said leaf-spring-shaped flexible element (122).
8. Vehicle (10) according to claim 7, characterised in that the virtual elastic centre (E) of the third elastic bushing (132) is positioned behind the axle (144) of the rear wheels (18, 20) and it is arranged at a vertical height (HI) greater than the vertical height (H2) of the virtual elastic centre (F) of a front elastic bushing (138) which fixes the bridge (124) to the frame (12) by means of a bracket (140), the pin of said front elastic bushing (138) and the pin of said third elastic bushing (132) forming the only two points for fixing the rear suspension unit (28) to the frame (12), so as to reduce the times and the costs of assembling the vehicle (10).
9. Vehicle (10) according to claim 8, characterised in that the elasticity, measured in the transverse direction (Q) with reference to the centreline axis (Z-Z) of the vehicle (10), of the assembly made up of the two elastic bushings (128) for connection between the leaf-spring-shaped flexible element (122) and the bridge (124) and the third elastic bushing (132) is equivalent to about half of the lateral elasticity of the front elastic bushing (138) of the bridge (124).
10. Vehicle (10) according to claim 1, characterised in that it comprises at least one door (34) for access to the vehicle (10), provided with a mechanism for connection to the frame (12) and with \u201cpantograph-like\u201d openingclosing, comprising a support arm (100), provided with a first end joint (104) with respect to the frame (12) and a second end joint (106) with respect to the door (34), and a guide arm (102), also provided with a first end joint (108) with respect to the frame (12) and a second end joint (110) with respect to the door (34).
11. Vehicle (10) according to claim 10, characterised in that the transverse section of the guide arm (102) has a smaller area with respect to the area of the transverse section of the support arm (100), given that said support arm (100) is suitable to support the weight of the door (34), while said guide arm (102) solely serves the function of univocally defining the trajectory of said door (34).
12. Vehicle (10) according to claim 10, characterised in that the frame (12) is provided, at the intersection between each door compartment and the floor of the vehicle (10), with specific tubular elements (118) folded inwards towards the centreline axis (Z-Z) of said vehicle (10), said folded tubular elements (118) forming a \u201cdischarge\u201d which reduces the transverse distance between the seat (44) for the driver of the vehicle (10) and the door compartment, the remaining portion of the floor of the vehicle (10), due to the presence of said folded tubular elements (118), being obtained in the lower part (120) of each door (34), so as to restore the continuity of the entire floor of the vehicle (10) when the doors (34) are closed.
13. Vehicle (10) according to claim 1, characterised in that the floor or deck of the vehicle (10) is made up of a tank shaped structural element (42), made integral with the frame (12) and operating as element for supporting the driver (44) and passenger (44\u2032) seats, said tank shaped structural element (42) being configured to ensure, besides the necessary functionality and ergonomics features for the people inside the vehicle (10), also the safety measures regarding any possible shock or external impact the vehicle (10) may be subjected to.
14. Vehicle (10) according to claim 13, characterised in that said tank shaped structural element (42) comprises, made in a single piece therewith, the front wheelhouses (46, 48) for the front wheels (14, 16) and the rear wheelhouses (50, 52) for the rear wheels (18, 20), underneath said tank shaped structural element (42) there further being obtained a cavity suitable to contain the engine unit (22), the transmission unit and a possible luggage compartment for the vehicle (10).
15. Vehicle (10) according to claim 14, characterised in that said tank shaped structural element (42) is centrally provided with a raised platform (54), which forms the base for supporting the driver seat (44), on the rear edges of said tank shaped structural element (42), above said rear wheelhouses (50, 52), also respectively obtained being two further raised platforms (56, 58), which form the base for supporting the passenger seats (44\u2032).
16. Vehicle (10) according to claim 15, characterised in that the frame (12) is provided with one or more specific tubular elements (60) which are inserted in shape coupling into and underneath the cavity provided for in the raised platform (54) which forms the base for supporting the driver seat (44), thus guaranteeing the required structural rigidity of the tank shaped structural element (42).
17. Vehicle (10) according to claim 15, characterised in that the frame (12) is provided with two tubular portions (62, 64) arranged in shape coupling underneath the two raised platforms (56, 58) which form the base for supporting the passenger seats (44\u2032), said two tubular portions (62, 64) in turn forming the base for supporting said two raised platforms (56, 58).
18. Vehicle (10) according to claim 15, characterised in that said cavity suitable to contain the engine unit (22) is provided for between the two raised platforms (56, 58) which form the base for supporting the passenger seats (44\u2032), said engine unit (22) being positioned, in said cavity, longitudinally with respect to the vehicle (10).
19. Vehicle (10) according to claim 15, characterised in that in said cavity provided for in the raised platform (54) which forms the base for supporting the driver seat (44) there may be positioned batteries and systems for controlling the engine unit (22), said raised platform (54) thus being provided with one or more inspection ports for carrying out the maintenance of said engine unit (22).
20. Vehicle (10) according to claim 13, characterised in that said tank shaped structural element (42) is made of fibreglass or a material having similar features.
21. Vehicle (10) according to claim 1, characterised in that the engine unit (22) may be of the internal combustion engine, electric motor or hybrid engine type, i.e. with an internal combustion engine and an electric motor operatively connected to each other.
22. Vehicle (10) according to claim 1, characterised in that the transmission unit is an automatic continuously variable transmission unit (CVT) provided with a differential reduction gear-inverter unit.
23. Vehicle (10) according to claim 1, characterised in that the frame (12) is configured to be suitably covered with a closed or open type body which is provided with an opening rear door (30), a rear panel (32), having the function of covering the engine unit (22), two doors (34) for access to the vehicle (10), one for each side of said vehicle (10), and a roof (40) of the fixed or opening type, either partially or completely.