Abstract: The present invention provides a process for preparation of the compound of formula (VI), wherein each symbol is as defined in the specification, without using any intermediate compound showing mutagenicity. The process comprises salt formation of the intermediate compound of formula (I) with acid to enable optical resolution to isolate the intermediate compound of formula (II) in a stereo-selective manner.

Abstract: The present invention provides an sulfonamide 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 general formula (II): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the ring C is an aromatic carbocyclic ring etc.; R1 is carboxy etc.; R2 is independently a halogen atom etc.; R3 is optionally substituted alkyloxy etc.; R4 is independently a halogen atom etc.; R5 is independently optionally substituted alkyl etc.; M is sulfonyl etc.; Y is a single bond etc.; L1 is a single bond etc.; L2 is a single bond etc.; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; and q is 0, 1, 2 or 3; provided that a) k is not 0 when the ring B is a 6-membered nitrogen-containing heterocyclic ring containing one or two nitrogen atom(s) and the ring C is a benzene ring, etc.

Abstract: The present invention provides an sulfonamide 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 general formula (II): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the ring C is an aromatic carbocyclic ring etc.; R1 is carboxy etc.; R2 is independently a halogen atom etc.; R3 is optionally substituted alkyloxy etc.; R4 is independently a halogen atom etc.; R5 is independently optionally substituted alkyl etc.; M is sulfonyl etc.; Y is a single bond etc.; L1 is a single bond etc.; L2 is a single bond etc.; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; and q is 0, 1, 2 or 3; provided that a) k is not 0 when the ring B is a 6-membered nitrogen-containing heterocyclic ring containing one or two nitrogen atom(s) and the ring C is a benzene ring, etc.

Abstract: The present invention provides an sulfonamide 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 general formula (II): wherein the ring A is an aromatic carbocyclic ring etc.; the ring B is a nitrogen-containing non-aromatic heterocyclic ring etc.; the ring C is an aromatic carbocyclic ring etc.; R1 is carboxy etc.; R2 is independently a halogen atom etc.; R3 is optionally substituted alkyloxy etc.; R4 is independently a halogen atom etc.; R5 is independently optionally substituted alkyl etc.; M is sulfonyl etc.; Y is a single bond etc.; L1 is a single bond etc.; L2 is a single bond etc.; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; and q is 0, 1, 2 or 3; provided that a) k is not 0 when the ring B is a 6-membered nitrogen-containing heterocyclic ring containing one or two nitrogen atom(s) and the ring C is a benzene ring, etc.

Abstract: The present invention provides a compound of formula (I): wherein —X? is —CR7? or —N?, ring B is a substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, R1 is substituted or unsubstituted alkyl or the like, R2 a and R2 b are each independently hydrogen, substituted or unsubstituted alkyl or the like, R3 and R4 are each independently hydrogen, halogen, substituted or unsubstituted alkyl or the like, R5 is hydrogen, substituted or unsubstituted alkyl or the like, each R6 is independently halogen, hydroxy, substituted or unsubstituted alkyl or the like, R7 is hydrogen, halogen, hydroxy, substituted or unsubstituted alkyl or the like, p is an integer of 0 to 3, or a pharmaceutically acceptable salt thereof which has an effect of inhibiting amyloid ? production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid ? proteins.

Abstract: The present invention provides a compound of formula (I): wherein —X? is —CR7? or —N?, ring B is a substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, R1 is substituted or unsubstituted alkyl or the like, R2 a and R2 b are each independently hydrogen, substituted or unsubstituted alkyl or the like, R3 and R4 are each independently hydrogen, halogen, substituted or unsubstituted alkyl or the like, R5 is hydrogen, substituted or unsubstituted alkyl or the like, each R6 is independently halogen, hydroxy, substituted or unsubstituted alkyl or the like, R7 is hydrogen, halogen, hydroxy, substituted or unsubstituted alkyl or the like, p is an integer of 0 to 3, or a pharmaceutically acceptable salt thereof which has an effect of inhibiting amyloid ? production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid ? proteins.

Abstract: The present invention creates an azaindole derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further providing a therapeutic agent for treating allergic diseases. A compound of the general 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.; the formula of —X1?X2—X3?X4— is a formula of —C(R1)?C(R2)—C(R3)?N— etc.; R1, R2, R3, R4 and R5 are independently a hydrogen atom or a halogen atom etc.; R6 is optionally substituted C1-C6 alkyloxy etc.; R7 is independently a halogen atom etc.; R8 is optionally substituted C1-C6 alky etc.; R9 is carboxy etc.; M is sulfonyl etc.; Y is a single bond 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 creates an azaindole derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further providing a therapeutic agent for treating allergic diseases. A compound of the general 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.; the formula of —X1?X2—X3?X4— is a formula of —C(R1)?C(R2)—C(R3)?N— etc.; R1, R2, R3, R4 and R5 are independently a hydrogen atom or a halogen atom etc.; R6 is optionally substituted C1-C6 alkyloxy etc.; R7 is independently a halogen atom etc.; R8 is optionally substituted C1-C6 alkyl etc.; R9 is carboxy etc.; M is sulfonyl etc.; Y is a single bond 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 represented by the general formula (I): wherein R1 is wherein R26 and R28 are each independently lower alkyloxy and the like; n1 is an integer of 0 to 3; Z is a optionally substituted C1-C5 alkynylene which may be interrupted with a substituent selected from Substituent group a and the like; A is a group represented by the formula: wherein R6 and R7 are each independently lower alkyl and the like; m and n are each independently 0, 1, or 2; R2 is a hydrogen atom and the like; R3 is optionally substituted lower alkyl and the like; R4 is a hydrogen atom; or R3 and R4 may be taken together with an adjacent carbon atom to from a ring; R5 is hydroxyl and the like, or an optically active isomer, a pharmaceutically acceptable salt or a solvate thereof.

Abstract: The present invention creates an azaindole derivative having DP receptor antagonistic activity and a pharmaceutical composition comprising the said compound as an active ingredient, and further providing a therapeutic agent for treating allergic diseases. A compound of the general 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.; the formula of -X1=X2-X3=X4- is a formula of —C(R1)?C(R2)—C(R3)?N— etc.; R1, R2, R3, R4 and R5 are independently a hydrogen atom or a halogen atom etc.; R6 is optionally substituted C1-C6 alkyloxy etc.; R7 is independently a halogen atom etc.; R8 is optionally substituted C1-C6 alky etc.; R9 is carboxy etc.; M is sulfonyl etc.; Y is a single bond 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.