A novel aminocoumaran derivative of the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are a hydrogen atom, an acyl group, an alkoxycarbonyl group, an aliphatic group or aromatic group; R.sup.3, R.sup.4 and R.sup.5 are an optionally acylated hydroxyl optionally substituted amino group, alkoxy group or aliphatic group, or two of R.sup.3, R.sup.4 and R.sup.5 may be linked together to form a carbocyclic group; R.sup.6 and R.sup.7 are an aliphatic group and at least one of them has a methylene group at the .alpha.-position; R.sup.8 and R.sup.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.
This application is a division of application Ser. No. 08/305,717, filed Sep. 14, 1994 now U.S. Pat. No. 5,478,844 which is a divisional of 07/784,988 filed Oct. 30, 1991 now U.S. Pat. No. 5,376,681.
Priority Data
Nov 01, 1990 [JP] 2-298650 Sep 25, 1991 [JP] 3-245667
