Patent ID: 7858800

Claim:
A compound of the formula (I): wherein: R 1 is (A) a linear or branched alkoxy group, a cycloalkoxy group or a linear or branched lower alkyl group, or (B) a formula (II): wherein: R 3 and R 4 each independently is a hydrogen atom, a linear or branched lower alkyl group or a cycloalkyl group or R 3 , R 4 and nitrogen atom in the formula (II) together form a pyrrolidine or a piperidine ring; R 2 is a pyridyl group, which may have one to three substituent(s) selected from the group consisting of halogen atom, a lower alkyl group, cyano group, nitro group, an alkoxy group, a lower alkylsulfonyl group, oxo group and hydroxyl group; Q 1 is carbon atom atom; Q 2 is carbon atom which is unsubstituted or substituted with an oxo group; the formula (III): (III) is a single bond or a double bond; A is a group of the formula (IV-5): wherein: R 5 is hydrogen atom, a lower alkyl group, a cyano group, an alkoxy group or a trialkylsilyl group, wherein the lower alkyl group may be substituted with an alkoxy group; or a pharmaceutically acceptable salt thereof.