| 摘要 |
A compound represented by the following formula (1) or a salt thereof: <CHEM> wherein R<1> represents a C1-12 alkyl group, phenyl group, 1-naphthyl group and the like, R<2> represents a C2-12 alkyl group, (R<3>)b represents 0 to 4 substituents such as a halogen atom, R<4> represents a lower alkyl group, R<5> represents hydrogen atom or a lower alkyl group, n represents an integer from 2 to 4, and X represents -NH- or -O-, which has superior hypoglycemic action, hypolipidemic action and total cholesterol reducing action, and is useful as an active ingredient of a medicament for prophylactic and/or therapeutic treatment of diseases including diabetes mellitus, hyperlipidemia and the like.
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