Aniline derivatives having a polyunsaturated fatty acid residue and use thereof

摘要

An aniline derivative of the formula (1) <CHEM> wherein R<1> is an eicosapentaenoyl or docosahexaenoyl; R<2> and R<3> are each independently an alkyl or alkoxy having 1 to 6 carbon atoms, or a halogen atom; R<4> is a hydrogen atom, an alkyl or alkoxy having 1 to 6 carbon atoms, or a halogen atom; and A is a single bond, -C(=O)NH-(CH2)n-NH- wherein n is 2 or 3, or a bivalent group of the following formula <CHEM> wherein m and p are each independently 0 or 1. The aniline derivative of the present invention has high inhibitory activity against and high selectivity for ACAT derived from macrophage and is useful as an agent for the prophylaxis and treatment of arteriosclerosis.