Patent ID: 7067527

Claim:
A compound represented by the formula (I): wherein G represents a halogen atom, hydroxyl group, an optionally substituted amino group, an optionally substituted lower alkyl group or an optionally substituted alkoxy group; alk represents an optionally substituted lower alkylene group; X represents oxygen atom, an optionally oxidized sulfur atom, or —(CH 2 )q—, wherein q represents an integer of 0 to 5; R represents an optionally substituted amino group or an optionally substituted heterocyclic group; ring B represents an optionally substituted Y-containing 5- to 8-membered ring whose ring constituent atoms contain no nitrogen atom; Y represents oxygen atom, an optionally oxidized sulfur atom, wherein Ra and Rb are the same or different and, respectively, represent hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, an optionally substituted acyl group, an optionally substituted carbamoyl group, an optionally substituted thiocarbamoyl group, an optionally substituted sulfonyl group, an optionally substituted sulfinyl group, an optionally substituted hydroxyl group, an optionally substituted thiol group, an optionally esterified carboxyl group, or an optionally substituted heterocyclic group, or Ra and Rb may be combined to form a 5- to 7-membered ring; and Rc represents hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, an optionally substituted acyl group, an optionally substituted carbamoyl group, an optionally substituted thiocarbamoyl group, an optionally substituted sulfonyl group, an optionally substituted sulfinyl group, an optionally substituted hydroxyl group, an optionally substituted thiol group, an optionally esterified carboxyl group, or an optionally substituted heterocyclic group; and ring A represents an optionally substituted benzene ring, or a salt thereof.