AZAINDOLE DERIVATIVE HAVING PGD2 RECEPTOR ANTAGONISTIC ACTIVITY

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 -X 1 =X 2 -X 3 =X 4 - is a formula of -C(R 1 )=C(R 2 )-C(R 3 )=N- etc.; R 1 , R 2 , R 3 , R 4 and R 5 are independently a hydrogen atom or a halogen atom etc.; R 6 is optionally substituted C1-C6 alkyloxy etc.; R 7 is independently a halogen atom etc.; R 8 is optionally substituted C1-C6 alky etc.; R 9 is carboxy etc.; M is sulfonyl etc.; Y is a single bond etc.; L 1 , L 2 and L 3 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.