A quinoline derivative of the formula (I):
 wherein each phenyl ring of A, B and C can have one or more substituents,
 (R¹ is a hydrogen atom or a lower alkyl group) or
 (R² is a lower alkyl group or a lower alkoxy group), and n is 0 or 1, or its salt, which possesses an inhibitory action against acyl-CoA: cholesterol acyltransferase.  
                            式(I)的
喹啉衍
生物:
 其中 A、B 和 C 的每个苯基环可以有一个或多个取代基、
 (R¹是氢原子或低级烷基)或
 (R²为低级烷基或低级烷氧基),且 n 为 0 或 1 的
喹啉衍
生物或其盐,对酰基-CoA:
胆固醇酰基转移酶具有抑制作用。