Constitution Tricyclic heterocyclyl compounds having a general formula (I): ##STR1## wherein: R.sup.1 and R.sup.2 each represents H, a lower alkyl or lower alkoxy group, a halogen atom or halogeno-lower alkyl; R.sup.3 represents H or a lower alkyl group; R.sup.4 represents a substituted phenyl or naphthyl group; R.sub.5 represents H or a lower alkyl group; A represents a lower alkylene group; B represents an --O-- or --S-- group; and n is 0-1. Effect The compounds have an excellent activity in the inhibition of acyl-CoA: cholesterol acyltransferase (ACAT) and are useful for the treatment and prophylaxis of atherosclerosis.
构成 通式(I)的
三环杂环化合物:##STR1## 其中:R.sup.1和R.sup.2分别代表H,较低的烷基或较低的烷氧基,卤原子或卤代较低的烷基;R.sup.3代表H或较低的烷基;R.sup.4代表取代的苯基或
萘基;R.sub.5代表H或较低的烷基;A代表较低的亚烷基;B代表一个-0-或-S-基团;n为0-1。 效果 这些化合物在抑制酰
辅酶A:
胆固醇酰基转移酶(ACAT)方面具有出色的活性,并可用于治疗和预防动脉粥样硬化。