A heterocyclic derivative of the formula (I) ##STR1## wherein each symbol is as defined in the specification, and pharmaceutically acceptable salts thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof exhibit superior ACAT inhibitory activity and lipoperoxidation inhibitory activity in mammals, and are useful as ACAT inhibitors and lipoperoxidation inhibitors. Specifically, they are useful for the prophylaxis and treatment of arteriosclerosis, hyperlipemia, arteriosclerosis in diabetes, and cerebrovascular and cardiovascular ischemic diseases.
公式(I)的杂环衍
生物##STR1##及其药用盐。本发明的化合物(I)及其药用盐在哺乳动物中表现出优越的ACAT抑制活性和脂质过氧化抑制活性,并且可用作ACAT
抑制剂和脂质过氧化
抑制剂。具体而言,它们可用于动脉粥样硬化、高脂血症、糖尿病性动脉硬化以及脑血管和心血管缺血性疾病的预防和治疗。