The present invention relates to a compound, or a pharmacologically acceptable salt thereof, that has excellent hypoglycemic action. A compound represented by general formula (I) or a pharmacologically acceptable salt thereof. [In the formula, R1 is a hydrogen atom, a C1-3 alkyl group, or a C3-6 cycloalkyl group, R2 is a hydrogen atom, a C1-3 alkyl group, or is bonded to a C1-3 alkyl group that is at R1 so as to form a 3-6-membered saturated carbon ring, R3 is a hydrogen atom, a C1-6 alkyl group, or a C3-6 cycloalkyl group, R4 is a hydrogen atom, a C1-6 alkyl group, or is bonded to a C1-6 alkyl group that is at R3 so as to form a 3-6-membered saturated carbon ring, X is -CH2- or -C(=O)-, Y is -N(-R5)-, or -O-, R5 is a hydrogen atom, a C1-6 alkyl group, a hydroxy C1-3 alkyl group, a C1-3-alkoxy C1-3 alkyl group, a carboxy C1-3 alkyl group, a halo C1-3 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or a C3-6 cycloalkyl group, W is an optionally substituted phenyl group, an optionally substituted biphenyl group, an optionally substituted 5-10-membered heteroarylphenyl group that includes 1-4 identical or different heteroatoms selected from among nitrogen, oxygen, and sulfur, an optionally substituted 7-benzofuranyl group, or an optionally substituted naphthyl group.]La présente invention concerne un composé, ou un sel pharmacologiquement acceptable de celui-ci, ayant une excellente action hypoglycémique, ledit composé étant représenté par la formule générale (I). [Dans la formule, R1 est un atome dhydrogène, un groupe alkyle en C1-3, ou un groupe cycloalkyle en C3-6, R2 est un atome dhydrogène, un groupe alkyle en C1-3, ou est lié à un groupe alkyle en C1-3 qui est en R1 de façon à former un cycle carbone saturé ayant de 3 à 6 chaînons, R3 est un atome dhydrogène, un groupe alkyle en C1-6, ou un groupe cycloalkyle en C3-6, R4 est un atome dhydrogène, un groupe alkyle en C1-6, ou est lié à un groupe alkyle en C1-6 qui est en R3 de façon à former un carbone sat
