Patent ID: 7115623

Claim:
A compound of the formula (1): wherein: A is methylene, lower alkylmethylene, carbonyl, hydroxymethylene or lower alkylcarbonyloxymethylene, Y is a 5- or 6-membered heteroaryl group containing one or two ring heteroatoms selected from nitrogen, sulfur and oxygen, Z is i) a fused ring in which any of 5- or 6-membered heteroaryl groups is fused to a benzene ring, or ii) a phenyl group which may be unsubstituted or optionally substituted with one or more members selected from the group consisting of halogen, cyano, nitro, lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, lower alkyl, trifluoromethyl, hydroxyl, lower alkoxy, a carboxylic acid residue, a carbamoyl group, a carboxylic acid lower alkyl ester residue, amino, mono- or di-lower alkylamino, carbamoylamino, and lower alkylcarbonylamino, provided that when A is methylene, Y is a 5- or 6-membered heteroaryl group selected from the group consisting of pyrrolyl, pyridyl, 1-oxypyridyl, thienyl, furyl, imidazolyl, thiazolyl, and oxazolyl, and Z is a phenyl group which may be unsubstituted or substituted, the substituent on said phenyl group is selected from the group consisting of amino, mono- or di-lower alkylamino, carbamoylamino, and lower alkylcarbonylamino; or a pharmaceutically acceptable salt thereof.