PYRIDYL ACETIC ACID COMPOUNDS

摘要

The present invention provides a compound represented by the formula (I): wherein R<SUB>1</SUB> is a C?1-6#191 alkyl group optionally substituted by a C?3-10#191 cycloalkyl group, R<SUB>2</SUB> is a C?2-6#191 alkyl group, R<SUB>3</SUB> is a hydrogen atom, a C?1-6#191 alkyl group or a halogen atom, and X is -OR<SUB>6</SUB> or -NR<SUB>4</SUB>R<SUB>5</SUB> wherein R<SUB>4</SUB> and R<SUB>6</SUB> are each independently a hydrogen atom, an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group, R<SUB>5</SUB> is an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group or an optionally substituted hydroxy group, or R<SUB>4</SUB> and R<SUB>5</SUB> optionally form, together with the adjacent nitrogen atom, an optionally substituted nitrogen-containing heterocycle, or a salt thereof. The compound of the present invention has a superior peptidase inhibitory action and is useful as an agent for the prophylaxis or treatment of diabetes and the like.