Naphthyridine derivatives and pharmaceutical compositions thereof
First Claim
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1. A 1,8-naphthyridine derivative represented by the following Formula (I), a salt thereof, a hydrate thereof or a solvate thereof ##STR113## each symbol in the formula represents the following meaning:
- X;
an oxygen atom or a sulfur atom,R1 is a lower alkyl group which may be substituted with a group described in the A group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, a cycloalkyl-lower alkyl group, an aryl group which may be substituted with a group described in the B group, an aralkyl group which may be substituted with a group described in the B group, a five- or six-membered monocyclic heteroaryl group, or a five- or six membered monocyclic heteroaryl-lower alkyl group,R2 is a hydrogen atom, a halogen atom, a lower alkyl group, a hydroxy group, a lower alkoxy group, a lower alkylcarbonyl group, a trihalogenomethyl group, a nitro group, a cyano group, an amino group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a mono- or di-lower alkylcarbamoyl group, a lower alkylcarbonylamino group, an aryl group or a cycloalkyl group,R3 and R4 ;
may be the same or different from each other and each represents a hydrogen atom, a halogen atom, a lower alkyl group, a hydroxyl group, a lower alkoxy group, a lower alkylcarbonyl group, a trihalogenomethyl group, a nitro group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a mono- or di-lower alkylcarbamoyl group, a lower alkylcarbonylamino group, an aryl group or a cycloalkyl group,R5 ;
a hydrogen atom,R6 ;
an aryl group which may be substituted with a group described in the C group, a five- or six-membered monocyclic heteroaryl group which may be substituted with a group described in the C group, a cycloalkyl group or an adamantyl group;
the A group is halogen atom, a hydroxyl group, a lower alkoxy group, a cyano group, a nitro group, an amino group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a lower alkylcarbonyl group, a carbamoyl group or a mono- or di-lower alkylcarbamoyl group;
The B group is a lower alkyl group or a group described in the A group;
The C group is a halogen atom, a hydroxyl group, a lower alkoxy group, a lower alkylcarbonyl group, a nitro group, a cyano group, an amino group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a mono- or di-lower alkylcarbamoyl group or a lower alkylcarbonylamino group, or a lower alkyl group which may be substituted with these groups, with the proviso that, when each of R1, R2 and R4 is a methyl group and each of R3 and R5 is a hydrogen atom, R6 represents an aryl group which is substituted with a group described in the C group, a five- or six-membered monocylic heteroaryl group which may be substituted with a group described in the C group, a cycloalkyl group, or an adamantyl group.
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Abstract
1,8-Naphthyridine derivatives represented by the following general formula (I), salts thereof, hydrates thereof and solvates thereof. ##STR1## They have an activity to inhibit type IV phosphodiesterase and are useful as agents for the prevention and treatment of respiratory diseases, inflammatory diseases accompanying organ transplantation, systemic or local arthropathy, proliferative diseases, micturition-related diseases and diseases in which tumor necrosis factor (TNF) and other cytokine (IL-1, IL-6 or the like) are concerned.
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20 Claims
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1. A 1,8-naphthyridine derivative represented by the following Formula (I), a salt thereof, a hydrate thereof or a solvate thereof ##STR113## each symbol in the formula represents the following meaning:
- X;
an oxygen atom or a sulfur atom,R1 is a lower alkyl group which may be substituted with a group described in the A group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, a cycloalkyl-lower alkyl group, an aryl group which may be substituted with a group described in the B group, an aralkyl group which may be substituted with a group described in the B group, a five- or six-membered monocyclic heteroaryl group, or a five- or six membered monocyclic heteroaryl-lower alkyl group, R2 is a hydrogen atom, a halogen atom, a lower alkyl group, a hydroxy group, a lower alkoxy group, a lower alkylcarbonyl group, a trihalogenomethyl group, a nitro group, a cyano group, an amino group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a mono- or di-lower alkylcarbamoyl group, a lower alkylcarbonylamino group, an aryl group or a cycloalkyl group, R3 and R4 ;
may be the same or different from each other and each represents a hydrogen atom, a halogen atom, a lower alkyl group, a hydroxyl group, a lower alkoxy group, a lower alkylcarbonyl group, a trihalogenomethyl group, a nitro group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a mono- or di-lower alkylcarbamoyl group, a lower alkylcarbonylamino group, an aryl group or a cycloalkyl group,R5 ;
a hydrogen atom,R6 ;
an aryl group which may be substituted with a group described in the C group, a five- or six-membered monocyclic heteroaryl group which may be substituted with a group described in the C group, a cycloalkyl group or an adamantyl group;the A group is halogen atom, a hydroxyl group, a lower alkoxy group, a cyano group, a nitro group, an amino group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a lower alkylcarbonyl group, a carbamoyl group or a mono- or di-lower alkylcarbamoyl group; The B group is a lower alkyl group or a group described in the A group; The C group is a halogen atom, a hydroxyl group, a lower alkoxy group, a lower alkylcarbonyl group, a nitro group, a cyano group, an amino group, a mono- or di-lower alkylamino group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a mono- or di-lower alkylcarbamoyl group or a lower alkylcarbonylamino group, or a lower alkyl group which may be substituted with these groups, with the proviso that, when each of R1, R2 and R4 is a methyl group and each of R3 and R5 is a hydrogen atom, R6 represents an aryl group which is substituted with a group described in the C group, a five- or six-membered monocylic heteroaryl group which may be substituted with a group described in the C group, a cycloalkyl group, or an adamantyl group. - View Dependent Claims (2, 3, 4, 5, 6, 14, 15, 16, 17, 18, 19, 20)
- X;
- 7. A naphthyridine derivative selected from the group consisting of 4-(3-chlorophenyl)-7-ethyl-1,5-dimethyl-1,8-naphthyridin-2(1H)-one or a salt thereof, 4-(3-bromophenyl)-1-ethyl-5,7-dimethyl-1,8-naphthyridin-2-(1H)-one or a salt thereof, 4-(3-bromophenyl)-1,7-diethyl-5-methyl-1,8-naphthyridin-2(1H)-one or a salt thereof, 1,7-diethyl-5-methyl-4-phenyl-1,8-naphthyridin-2(1H)-one or a salt thereof, 4-cyclohexyl-1-ethyl-1,8-naphthyridin-2(1H)-one or a salt thereof and 4-(3-bromophenyl)-1-ethyl-7-methyl-1,8-naphthyridin-2-(1H)-one or a salt thereof.
Specification