Abstract: The present invention provides novel compounds having a P2X3 and/or P2X2/3 receptor antagonistic effect, e.g. a compound of Formula (I): wherein R2 is a hydrogen atom or the like; ring A is five- to seven-cycloalkane or the like; C is a carbon atom; Q1 and Q2 are carbon atoms or the like; R9a and R9b are carbon atoms or the like; R6 is cycloalkyl or the like; R7 is a group represented by the formula: wherein ring D is benzene or the like; carbon atom a and b are carbon atoms; ring B is an aromatic carbocyclic ring or the like; s and s? are 0 or the like; R9 and R9? are halogen or the like, or the like, or its pharmaceutically acceptable salt.

Abstract: The present invention provides novel compounds having a P2X3 and/or P2X2/3 receptor antagonistic effect, e.g. a compound of Formula (I): wherein R2 is a hydrogen atom or the like; ring A is five- to seven-cycloalkane or the like; C is a carbon atom; Q1 and Q2 are carbon atoms or the like; R9a and R9b are carbon atoms or the like; R6 is cycloalkyl or the like; R7 is a group represented by the formula: wherein ring D is benzene or the like; carbon atom a and b are carbon atoms; ring B is an aromatic carbocyclic ring or the like; s and s? are 0 or the like; R9 and R9? are halogen or the like, or the like, or its pharmaceutically acceptable salt.

Abstract: The present invention provides novel compounds having a P2X3 and/or P2X2/3 receptor antagonistic effect, e.g. a compound of Formula (I): wherein R2 is a hydrogen atom or the like; ring A is five- to seven-cycloalkane or the like; C is a carbon atom; Q1 and Q2 are carbon atoms or the like; R9a and R9b are carbon atoms or the like; R6 is cycloalkyl or the like; R7 is a group represented by the formula: wherein ring D is benzene or the like; carbon atom a and b are carbon atoms; ring B is an aromatic carbocyclic ring or the like; s and s? are 0 or the like; R9 and R9? are halogen or the like, or the like, or its pharmaceutically acceptable salt.

Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1, R2, R3, R4, and G are defined as herein, a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredient.

Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1, R2, R3, R4, and G are defined as herein, a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredient.

Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1 is optionally substituted C1-C8 alkyl and the like; R2 is C1-C6 alkyl; R3 is C1-C6 alkyl and the like; or R2 and R3 taken together with may form an optionally substituted 5 to 10 membered non-aromatic carbon ring; R4 is hydrogen and the like; G is a group selected from the groups shown by the formula an the like: wherein R5 is hydrogen and the like; X1 is a single bond and the like; X2 is optionally substituted C1-C8 alkylene that may be replaced by one or two groups of —O—, or —N(R6)—, wherein R6 is hydrogen and the like, and the like; X3 is a single bond and the like; a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredie

Abstract: The present invention creates an indole derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further a therapeutic agent for treating allergic diseases. A compound of the generic formula (I) wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a 3- to 8-membered nitrogen-containing non-aromatic heterocyclic ring etc.; R1, R2, R3, R4 and R5 are independently a hydrogen atom or a halogen atom etc.; R6 is C2-C4 alkyloxy etc.; R7 is independently a halogen atom etc.; R8 is independently C1-C4 alkyl etc.; R9 is carboxy etc.; Y is a single bond etc.; M is sulfonyl etc.; L1, L2 and L3 are a single bond or alkylene optionally containing one or two heteroatoms etc.; n is 0 etc.; q is 0 etc.; a pharmaceutically acceptable salt or hydrate thereof.

Abstract: A compound having CRTH2 receptor antagonism, represented by the following formula (I). The compound is useful for the treatment of allergic diseases having a relation to eosinophils and the like. A compound of the formula (I): wherein a group represented by the formula: is a group represented by the formula: and the like, R1 is carboxy and the like, R3 is —(CH2)n-N(—Y)—SO2—Ar and the like, the other symbols are as defined in claim 1.

Abstract: A compound having CRTH2 receptor antagonism, represented by the following formula (I). The compound is useful for the treatment of allergic diseases having a relation to eosinophils and the like. A compound of the formula (I): wherein a group represented by the formula: is a group represented by the formula: and the like, R1 is carboxy and the like, R3 is —(CH2)n-N(—Y)—SO2—Ar and the like, the other symbols are as defined in claim 1.

Abstract: The present invention creates an indole derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further a therapeutic agent for treating allergic diseases. A compound of the generic formula (I) wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a 3- to 8-membered nitrogen-containing non-aromatic heterocyclic ring etc.; R1, R2, R3, R4 and R5 are independently a hydrogen atom or a halogen atom etc.; R6 is C2-C4 alkyloxy etc.; R7 is independently a halogen atom etc.; R8 is independently C1-C4 alkyl etc.; R9 is carboxy etc.; Y is a single bond etc.; M is sulfonyl etc.; L1, L2 and L3 are a single bond or alkylene optionally containing one or two heteroatoms etc.; n is 0 etc.; q is 0 etc.; a pharmaceutically acceptable salt or hydrate thereof.

Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1 is optionally substituted C1-C8 alkyl and the like; R2 is C1-C6 alkyl; R3 is C1-C6 alkyl and the like; or R2 and R3 taken together with may form an optionally substituted 5 to 10 membered non-aromatic carbon ring; R4 is hydrogen and the like; G is a group selected from the groups shown by the formula an the like: wherein R5 is hydrogen and the like; X1 is a single bond and the like; X2 is optionally substituted C1-C8 alkylene that may be replaced by one or two groups of —O—, or —N(R6)—, wherein R6 is hydrogen and the like, and the like; X3 is a single bond and the like; a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredien

Abstract: The present invention provides a process for the preparation of a bicyclic aminoalcohol which comprises reacting a starting compound, nopinone (I), with XCH2COOR1 wherein X is halogen, and R1 is alkyl, in the presence of an additive and a base to produce a compound (II), converting it to oxime derivative (III), and reducing it with an aluminum hydride

Abstract: The present invention provides novel compounds having a dual antagonistic activity against thromboxane A2 receptor and prostaglandin D2 receptor and pharmaceutical compositions comprising them. A compound of the formula (I): wherein R1 is —CH2—CH?CH—CH2—CH2—CH2—COOR2 or —CH?CH—CH2—CH2—CH2—COOR2; R2 is hydrogen or alkyl; m is 0 or 1; p is 0 or 1; X1 and X3 each is independently optionally substituted aryl or optionally substituted heteroaryl; X2 is a bond, —CH2—, —S—, —SO2—, —CH2—O—, —O—CH2—, —CH2—S—, —S—CH2—, or the like; X4 is —CH2—, —CH2—CH2—, —C(?O)—, or the like, have a dual antagonistic activity against both a thromboxane A2 receptor and a prostaglandin D2 receptor.

Abstract: Compounds of the general formula (I) which are metabolically stable and have an antagonistic activity against PGD2 receptor: ? wherein Y is bicyclic ring; R1 is optionally substituted heteroaryl; R2 is hydrogen, etc.; R3 is —CH2—CH2—CH2—CH2—CH?CH—COOR4, —CH2—CH2—CH2—CH2—X1—CH2—COOR4, —CH2—CH?CH—CH2—X1—CH2—COOR4 or —CH2—CH2—CH2—COOR4; R4 is hydrogen, etc.; X1 is —O—, etc.

Abstract: A compound having CRTH2 receptor antagonism, represented by the following formula (I). The compound is useful for the treatment of allergic diseases having a relation to eosinophils and the like. A compound of the formula (I): wherein a group represented by the formula: is a group represented by the formula: and the like, R1 is carboxy and the like, R3 is —(CH2)n-N(—Y)—SO2-Ar and the like, the other symbols are as defined in claim 1.

Abstract: The present invention provides a process for the preparation of a bicyclic aminoalcohol which comprises reacting a starting compound, nopinone (I), with XCH2COOR1 wherein X is halogen, and R1 is alkyl, in the presence of an additive and a base to produce a compound (II), converting it to oxime derivative (III), and reducing it with an aluminum hydride.

Abstract: Compounds of the general formula (I) which are metabolically stable and have an antagonistic activity against PGD2 receptor: 1

Abstract: Processes for producing benzothiophenecarboxylic acid derivatives of the formula (I), which are useful as starting materials for producing drugs, are disclosed. Also disclosed is a process for preparing 5-hydroxybenzo[b]-thiophene-3-carboxylic acid derivatives of the formula (VI), which are specific PGD2 antagonists.

Abstract: A process for preparing a compound having PGD2 antagonism represented by the formula (I), or a pharmaceutically acceptable salt or hydrate thereof, which process comprises reacting an amino alcohol of the formula (II) or its salt with a compound of the formula (III) or its reactive derivative, oxidizing the product with halo oxoacid in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyls, reacting the product with an ylide under the conditions for Wittig reaction, and optionally deprotecting the product.

Abstract: A process for preparing a compound having PGD2 antagonism represented by the formula (I), or a pharmaceutically acceptable salt or hydrate thereof, which process comprises reacting an amino alcohol of the formula (II) or its salt with a compound of the formula (III) or its reactive derivative, oxidizing the product with halo oxoacid in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyls, reacting the product with an ylide under the conditions for Wittig reaction, and optionally deprotecting the product.