Aminocoumaran derivatives, their production and use.

摘要

A novel aminocoumaran derivatives of the general formula (I): wherein R<1> and R<2> are a hydrogen atom, an acyl group, an alkoxycarbonyl group, an aliphatic group or aromatic group; R<3>, R<4> and R<5> are an optionally acylated hydroxyl, optionally substituted amino group, alkoxy group or aliphatic group, or two of R<3>, R<4> and R<5> may be linked together to form a carbocyclic group; R<6> and R<7> are an aliphatic group and at least one of them has a methylene group at the alpha -position; R<8> and R<9> are a hydrogen atom or an aliphatic group or aromatic group, or a salt thereof is useful for medicines for preventing and treating various diseases such as arterial sclerosis, hepatopathy, cerebrovascular diseases and the like.