Intermediates for the preparation of aminocoumaran derivatives

Details Intermediates for the preparation of aminocoumaran derivatives Intermediates for the preparation of aminocoumaran derivatives

1996-09-17

1998-06-23

Huang, Evelyn

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564223, C07C23303

Patent

active

057707723

ABSTRACT:
Disclosed are intermediates for the preparation of novel aminocoumaran derivatives 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.

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