Patent ID: 7947707

Claim:
A nitrogen-containing heterocyclic compound represented by the following general formula (I): wherein Y 1 represents N or C(R 4 ); Y 2 represents N or C(R 5 ); R 4 and R 5 independently represents an alkyl group which may have a halogen atom, a hydrogen atom, a halogen atom, a cyano group or an alkoxy group; one of R 1 and R 2 represents an haloalkyl group, a cyano group, a carbamoyl group or a halogen atom; the other of R 1 and R 2 represents an aryl group which may have a substituent selected from the group consisting of an alkyl group, a haloalkyl group, an alkoxy group and a halogen atom, wherein the substituents on the aryl group of R 1 or R 2 may form a ring selected from the group consisting of a dioxolane and a dioxane, an alkoxy group or a heterocyclic group selected from the group consisting of a thienyl, thiazolyl or pyrrolyl group which may be substituted by an alkyl group or a halogen atom; and R 3 represents a 5-tetrazolyl group or a carboxy group; and with the proviso that when Y 2 represents CR 5 , Y 2 may form, together with R 2 , a benzene or pyridine ring which may have a haloalkyl group, a halogen atom, a cyano group or an alkoxy group as a substituent, and the neighboring substituents on the benzene or pyridine ring may form a ring selected from the group consisting of a diaxololane and a dioxane, or a pharmaceutically acceptable salt thereof.