1. A rotor of a gas dispersion mechanism to be used in a flotation machine, the rotor comprising:
a cover disc for attachment to a rotatable shaft,
air ducts extending downward from the cover disc in an outer region of the rotor for delivering air to the periphery of the rotor whereby the rotor defines a space for the slurry inward of the air ducts, the air ducts being defined by air duct walls extending from the interior of the rotor to the periphery of the rotor and forming mixing and pumping blades of the rotor, wherein outer surfaces of the air ducts define slurry grooves that are in fluid communication with the space for the slurry,
air channels for conducting air into the air ducts, and
a collar disposed below the cover disc and encircling part of the slurry space for guiding the slurry flow into the interior of the rotor,
and wherein the collar has an upper edge and the air duct walls have lower end portions that extend downward beyond the upper edge of the collar and are disposed outward of the collar.
2. The rotor according to claim 1, wherein the collar is attached to the lower end portions of the air duct walls.
3. The rotor according to claim 1, wherein the collar has a lower edge forming a the bottom line of the rotor and the collar extends upward from the bottom line of the rotor a distance that is between one half to one sixth of the height of the air duct walls.
4. The rotor according to claim 1, wherein the collar extends outwards and downwards from outer edges of the air duct walls.
5. The rotor according to claim 1, wherein the shape of the collar is a truncated cone.
6. The rotor according to claim 1, wherein the height of the air ducts is 40-60% of the length of the radius of the cover disc.
7. The rotor according to claim 1, wherein the walls of the air ducts are mutually divergent and diverge from each other in an angle of 15-30 degrees.
8. The rotor according to claim 1, wherein each air duct has two air duct walls that extend substantially radially of the rotor.
9. The rotor according to claim 8, wherein the two air duct walls of each air duct diverge outwardly of the rotor at an angle in the range from 15 to 30 degrees.
10. The rotor according to claim 1, wherein the cover disc is formed with channels for supplying air to the air ducts.
11. The rotor according to claim 1, wherein the rotor comprises at least six air ducts.
12. The rotor according to claim 1, further comprising internal mixing blades protruding from each air duct towards the center of the rotor.
13. The rotor according to claim 1, wherein the cover disc comprises a bottom plate formed with apertures communicating with the air ducts and also comprises a top plate spaced from the bottom plate and formed with a central opening, whereby the space between the bottom plate and the top plate defines a channel for conducting air from the central opening in the top plate to the apertures in the bottom plate.
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. A compound represented by the following formula, a salt thereof or a hydrate thereof,
wherein Q indicates O, R3 and R5 are the same as or different from each other and each indicates a hydrogen atom or a C1-6 alkyl group; and R1 indicates a C3-8 cycloalkyl group, a 5 to 14 membered non-aromatic heterocyclic group, a C6-14 aromatic hydrocarbocyclic group, or a 5 to 14 membered aromatic heterocyclic group, which may be substituted, respectively, and R2 and R4 are the same as or different from each other and each indicates a group represented by the formula \u2014X-A wherein X indicates a single bond and A indicates a C3-6 cycloalkyl group, a 5 to 14 membered non-aromatic heterocyclic group, a C6-14 aromatic hydrocarbocyclic group, or a 5 to 14 membered aromatic heterocyclic group, which may be substituted, respectively.
2. The compound according to claim 1, a salt thereof or a hydrate thereof, which is represented by the formula:
wherein Q indicates O; X1 is a single bond and X2 and X3 are each a single bond and A1, A2 and A3 are the same as or different from each other and each indicates an optionally substituted C3-8 cycloalkyl group, an optionally substituted 5 to 14-membered non-aromatic heterocyclic group, an optionally substituted C6-14 aromatic hydrocarbocyclic group or an optionally substituted 5 to 14-membered aromatic heterocyclic group; and R17 indicates a hydrogen atom or a C1-6 alkyl group and R18 indicates a hydrogen atom.
3. The compound according to claim 2, a salt thereof or a hydrate thereof, wherein X1 is a single bond and X2 and X3 are each a single bond and A1, A2 and A3 are a C3-8 cycloalkyl group, a 5- to 14-membered non-aromatic heterocyclic group, a C6-14 aromatic hydrocarbocyclic group or a 5- to 14-membered aromatic heterocyclic group, each of which may be optionally substituted with one or more groups selected from the following substituent group b: the group consisting of (1) hydroxy group, (2) a halogen atom, (3) nitrile group, (4) nitro group, (5) a C1-6 alkyl group, a C2-6 alkenyl group or a C2-6 alkynyl group which may be optionally substituted respectively with one or more groups selected from the group consisting of hydroxy group, nitrile group, a halogen atom, a C1-6 alkylamino group, a di-(C1-6 alkyl)amino group, a C2-6 alkenylamino group, a di(C2-6 alkenylamino) group, a C2-6 alkynylamino group, a di(C2-6 alkynylamino) group, an N-C1-6 alkyl-N-C2-6 alkenylamino group, an N-C1-6 alkyl-N-C2-6 alkynylamino group, an N-C2-6 alkenyl-N-C2-6 alkynylamino group, an aralkyloxy group, a TBDMS oxy group, a C1-6 alkylsulfonylamino group, a C1-6 alkylcarbonyloxy group, a C2-6 alkenylcarbonyloxy group, a C2-6 alkynylcarbonyloxy group, an N-C1-6 alkylcarbamoyl group, an N-C2-6 alkenylcarbamoyl group and an N-C1-6 alkynylcarbamoyl group, (6) a C1-6 alkoxy group, a C2-6 alkenyloxy group or a C2-6 alkynyloxy group which may be optionally substituted respectively with one or more groups selected from the group consisting of a C1-6 alkylamino group, an aralkyloxy group and hydroxy group, (7) a C1-6 alkylthio group, a C2-6 alkenylthio group or a C2-6 alkynylthio group which may be optionally substituted respectively with one or more groups selected from the group consisting of hydroxy group, nitrile group, a halogen atom, a C1-6 alkylamino group, an aralkyloxy group, a TBDMS oxy group, a C1-6 alkylsulfonylamino group, a C1-6 alkylcarbonyloxy group and a C1-6 alkylcarbamoyl group, (8) a carbonyl group substituted with a group selected from the group consisting of a C1-6 alkoxy group, amino group, a C1-6 alkylamino group, a di(C1-6 alkyl)amino group, a C2-6 alkenylamino group, a di(C2-6 alkenyl)amino group, a C2-6 alkynylamino group, a di(C2-6 alkynyl)amino group, an N-C1-6 alkyl-N-C2-6 alkenylamino group, an N-C1-6 alkyl-N-C2-6 alkynylamino group and an N-C2-6 alkenyl-N-C2-6 alkynylamino group, (9) amino group which may be optionally substituted with one or two groups selected from the group consisting of a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, a C1-6 alkylsulfonyl group, a C2-6 alkenylsulfonyl group, a C2-6 alkynylsulfonyl group, a C1-6 alkylcarbonyl group, a C2-6 alkenylcarbonyl group and a C2-6 alkynylcarbonyl group, (10) a C1-6 alkylsulfonyl group, (11) a C2-6 alkenylsulfonyl group, (12) a C2-6 alkynylsulfonyl group, (13) a C1-6 alkylsulfinyl group, (14) a C2-6 alkenylsulfinyl group, (15) a C2-6 alkynylsulfinyl group, (16) a formyl group, (17) a C3-8 cycloalkyl group or a C3-8 cycloalkenyl group which may be optionally substituted respectively with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C1-6 alkyl group, a C1-6 alkyloxy group, a C1-6 alkyloxy C1-6 alkyl group and an aralkyl group, (18) a 5- to 14-membered non-aromatic heterocyclic group which may be optionally substituted with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C1-6 alkyl group, a C1-6 alkyloxy group, a C1-6 alkyloxy C1-6 alkyl group and an aralkyl group, (19) a C6-14 aromatic hydrocarbocyclic group which may be optionally substituted with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C1-6 alkyl group, a C1-6 alkyloxy group, a C1-6 alkyloxy C1-6 alkyl group and an aralkyl group, and (20) a 5- to 14-membered aromatic heterocyclic group which may be optionally substituted with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C1-6 alkyl group, a C1-6 alkyloxy group, a C1-6 alkyloxy C1-6 alkyl group and an aralkyl group.
4. The compound according to claim 2, a salt thereof or a hydrate thereof, wherein A1, A2 and A3 are the same as or different from each other and each represents phenyl group, pyrrolyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group, carbazolyl group, cyclopentyl group, cyclohexyl group, cyclohexenyl group, dioxinyl group, adamantyl group, pyrrolidinyl group, piperidinyl group, piperazinyl group or morpholyl group which may optionally have a substituent, respectively.
5. The compound according to claim 2, a salt thereof or a hydrate thereof, wherein A1, A2 and A3 are the same as or different from each other and each is a group represented by the formula:
which may be substituted.
6. The compound according to claim 2, a salt thereof or a hydrate thereof, wherein A1, A2 and A3 are the same as or different from each other and each is optionally substituted with hydroxyl group, a halogen atom, amino group or nitrile group.
7. The compound according to claim 5, a salt thereof or a hydrate thereof, wherein the substituents of A1, A2 and A3 are the same as or different from each other and each is hydroxyl group, a halogen atom or, amino group, nitrile group or nitro group.
8. The compound according to claim 2, a salt thereof or a hydrate thereof, wherein R17 and R18 represent hydrogen atom.
9. The compound according to claim 2, a salt thereof or a hydrate thereof, wherein the bonding site of the substituent at A1, A2 andor A3 are \u03b1-position of the carbon atom bonding to the group X1, X2 and X3, respectively.
10. The compound according to claim 1, a salt thereof or a hydrate thereof, which is a compound selected from: 3-(2-cyanophenyl)-5-(2-methylsulfonylaminophenyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-chloro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-nitrophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-dimethylaminophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-3-(5-methoxymethyl-2-oxazolidinon-3-yl)-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxycarbonylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminocarbonylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyano-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-hydroxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-formylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-hydroxymethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-cyanomethylphenyl)-1,2-dihydropyridine-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-acetylaminomethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminomethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-acetoxymethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylthiophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylsulfonylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-formylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-diethylaminomethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-hydroxymethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridine-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-benzyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-phenyl-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-diphenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-methoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(3,4-dimethoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(thiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-fluorophenyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(thiophen-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(3-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-methoxycarbonylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-phenyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-fluorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(4-methoxy-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methoxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; 3-phenyl-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-formylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-formylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-chlorophenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-tolyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-trifluoromethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(thiophen-3-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-furfuryl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-tolyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-trifluoromethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(pyrimidin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-benzyloxymethylpyridin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-ethylthiopyridin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-chloropyridin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-fluoropyridin-5-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-methoxyphenyl)-1,2-dihydropyridin-2-one; 3-phenyl-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; 3-(thiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2one; 3-(2,6-dimethylphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanothiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-hydroxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminopropoxyphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-hydroxymethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-cyanomethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-cyanomethylphenyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(6-diethylaminomethyl-2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; 3-(2-hydroxypyridin-6-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2one: 1-(2-aminobenzothiazol-6-yl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(1-benzyl-1,2,3,6-tetrahydropyridin-5-yl)-1,2-dihydropyridin-2-one; 3-2-(5-methyl-1,2,4-oxadiazol-3-yl)phenyl-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(6-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(5-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(3-hydroxypyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-phenyl-5-(2-thiazolyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-methoxypyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one; 1-(4-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 1-(3-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-aminotoluen-4-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-3-(dimethylaminoethoxy)phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-3-(piperidinoethoxy)phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-3-(pyrrolidinoethoxy)phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-3-(diisoproylaminoethoxy)phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-3-(4-piperidinobutoxy)phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-(4-nitrophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 1-phenyl-5-(2-pyridyl)-3-(2-thiazolyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; 3-(2-fluoropyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; 3-(2-cyanopyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-(3-nitrophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; 3-(2-nitrophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-formylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-naphthyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(1-naphthyl)-1,2-dihydropyridin-2-one; 5-(2-aminopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one; 5-(2-bromopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-morphorinopyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-(3-hydroxyphenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-3-(4-piperidyloxy)phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 1-3-(N-acetylpiperidin-4-yl-oxy)phenyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-1-{3-1-(methanesufonyl)piperidin-4-yl-oxyphenyl}-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 1-3-(N-methylpiperidin-4-yl-oxy)phenyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-(6-chloro-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-nitrotoluen-4-yl)-1,2-dihydropyridin-2-one; 3-(2-cyanothiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; 3-2-(5-oxazolyl)phenyl-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; 3-2-(5-oxazolyl)thiophen-3-yl-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; and 3-(2-ethoxycarbonylvinylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one.
11. A compound represented by the following formula, a salt thereof, or a hydrate thereof,
wherein Q indicates O, R3 and R5 are the same as or different from each other and each indicates a hydrogen atom or a C1-6 alkyl group; R1 is a C6-14 aromatic hydrocarbocyclic group, or a 5- to 14-membered aromatic heterocyclic group, which may be substituted, respectively, and R2 and R4 are the same as or different from each other and each indicates a group represented by the formula \u2014X-A wherein X indicates a single bond and A indicates a C6-14 aromatic hydrocarbocyclic group, or a 5 to 14 membered aromatic heterocyclic group, which may be substituted, respectively.
12. The compound of claim 11, which is 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
13. The compound of claim 11, which is 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
14. The compound of claim 11, which is 3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
15. The compound of claim 11, which is 3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
16. The compound of claim 11, which is 3-(2-cyanophenyl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
17. The compound of claim 11, which is 3-(2-cyanophenyl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
18. The compound of claim 11, which is 3-(2-fluoropyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
19. The compound of claim 11, which is 3-(2-cyanopyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one, or a salt or hydrate thereof.
20. A pharmaceutical composition which is an inhibitor to an \u03b1-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor andor a kainate receptor, said composition comprising
a compound represented by formula (I) as it is defined in claim 1, a salt thereof or a hydrate thereof, in an effective amount for the treatment of epilepsy, Parkinson’s disease, Parkinson’s syndrome, or multiple sclerosis, and
a pharmaceutically acceptable carrier.
21. The pharmaceutical composition according to claim 20, wherein it is an inhibitor to an AMPA receptor.
22. The pharmaceutical composition according to claim 20, wherein it is an inhibitor to a kainate receptor.
23. The pharmaceutical composition according to claim 20, which is a therapeutic agent for the diseases in which an AMPA receptor or a kainate receptor is participated.
24. The pharmaceutical composition according to claim 20, which is a therapeutic agent for the diseases in which a kainate receptor is participated.
25. The pharmaceutical composition according to claim 20, which is a therapeutic agent for Parkinson’s disease.
26. The pharmaceutical composition according to claim 20, which is an agent for treating epilepsy or Parkinson’s.
27. The pharmaceutical composition according to claim 20, which is an agent for treating multiple sclerosis.
28. A pharmaceutical composition which is an inhibitor to an \u03b1-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor andor a kainate receptor, said composition comprising a compound represented by the following formula, a salt thereof or a hydrate thereof,
wherein Q indicates O, R3 and R5 are the same as or different from each other and each indicates a hydrogen atom or a C1-6 alkyl group; R1 is a C6-14 aromatic hydrocarbocyclic group, or a 5- to 14-membered aromatic heterocyclic group, which may be substituted, respectively, and R2 and R4 are the same as or different from each other and each indicates a group represented by the formula \u2014X-A wherein X indicates a single bond and A indicates a C6-14 aromatic hydrocarbocyclic group, or a 5 to 14 membered aromatic heterocyclic group, which may be substituted, respectively, in an effective amount for the treatment of epilepsy, Parkinson’s disease, Parkinson’s syndrome, or multiple sclerosis, and
a pharmaceutically acceptable carrier.
29. A method for treating a disease in which an AMPA receptor or a kainate receptor participates, by dosing to a patient, a pharmacologically effective dose of a compound represented by formula (I) as it is defined in claim 1 or any of claims 11 to 19, a salt thereof, or a hydrate thereof, wherein the disease is selected from the group consisting of Parkinson’s disease epilepsy, Parkinson’s syndrome, and multiple sclerosis.