Patent ID: 7074798

Claim:
A compound represented by the formula (I): wherein, R 1 stands for a hydrogen atom, a substituted or unsubstituted C 1-6 alkyl group, a substituted or unsubstituted C 1-6 alkoxy C 1-6 alkyl group, a substituted or unsubstituted C 3-6 alkynyl group, a substituted or unsubstituted C 2-7 cyanoalkyl group, a substituted or unsubstituted C 6-12 aryl C 1-6 alkyl group, a substituted or unsubstituted C 1-12 aryloxy C 1-6 alkyl group, or a group represented by the formula: wherein, a denotes 1; R 5 and R 6 both denote a hydrogen atom; and, R 7 denotes a hydroxyl group, a substituted or unsubstituted C 1-6 alkoxy group, a substituted or unsubstituted phenyl group, or a group represented by the formula â€”N(R 3 )R 4 , wherein, R 3 and R 4 are identical to or different from each other and individually denote a hydrogen atom, or a substituted or unsubstituted C 1-6 alkyl group; R 2 stands for a hydrogen atom, a substituted or unsubstituted C 1-6 alkyl group, a substituted or unsubstituted C 1-6 alkoxy C 1-6 alkyl group, a substituted or unsubstituted 3 to 10-membered heterocyclic C 1-6 alkyl group, a substituted or unsubstituted C 6-12 aryl C 1-6 alkyl group, a group represented by the formula: wherein, a denotes 1; R 5 and R 6 are identical to or different from each other and individually denote a hydrogen atom, C 1-6 alkyl group, or phenyl group; and, R 7 denotes a hydroxyl group, C 1-6 alkyl group, C 1-6 alkoxy group, a substituted or unsubstituted phenyl group, or a group represented by â€”N(R 3 )R 4 , wherein, R 3 and R 4 are identical to or different from each other and individually denote a hydrogen atom, C 1-6 alkyl group, C 3-7 cycloalkyl group, C 3-6 alkynyl group, or C 6-12 aryl group; or, R 3 and R 4 may be linked to each other to form a ring containing one or more heteroatoms, or a group represented by the formula: wherein Y denotes an oxygen atom, or a group represented by â€”NR 8 , wherein R 8 denotes a hydrogen atom, or C 1-6 alkyl group; and X stands for a phenyl group wherein position 2 may have a substituent selected from the group consisting of a hydrogen atom, hydroxyl group, fluorine atom, chlorine atom, methyl group, ethyl group, fluoromethyl group, ethenyl group, methoxy group, ethoxy group, acetyl group, cyano group, formyl group, and C 2-7 aliphaticailcoxy carbonyl group, or a salt thereof.