AROMATIC RING FUSED PYRIMIDINE DERIVATIVE

摘要

A novel pyrimidine derivative in which pyrimidine has been fused with an aromatic heterocycle selected among thiophene, thiazole, and pyridine or a pharmaceutically acceptable salt of the derivative; and a medicinal composition containing the compound or salt as an active ingredient. These compounds have excellent activity in accelerating insulin secretion and excellent activity in inhibiting the increase of a blood sugar level. Therefore, the medicinal composition containing the compound or salt as an active ingredient is useful, based on these activities, for the treatment and/or prevention of insulin-dependent diabetes mellitus (type 1 diabetes), noninsulin-dependent diabetes mellitus (type 2 diabetes), insulin-resistant diseases, and obesity.