Patent number: 5232946
Abstract: The invention relates to new phenylethanolamines of general formula ##STR1## wherein A represents a straight-chained or branched alkylene group,B represents a bond, an alkylene group, a carbonyl or hydroxymethylene group,R.sub.1 represents a hydrogen atom, a halogen atom or a trifluoromethyl group,R.sub.2 represents a hydrogen atom or an amino group,R.sub.3 represents a cyano group, a hydrogen, chlorine or bromine atom andR.sub.4 represents a hydrogen or halogen atom, an alkyl, hydroxy, alkoxy, carboxy, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl or dialkylaminocarbonyl group or an alkoxy group substituted in the end position by a carboxy, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, hydroxy, alkoxy, amino, alkylamino, dialkylamino, pyrrolidino, piperidino or hexamethyleneimino group,the optical isomers and diastereoisomers and acid addition salts thereof.
Type:
Grant
Filed:
August 20, 1990
Date of Patent:
August 3, 1993
Assignee:
Dr. Karl Thomae GmbH
Inventors:
Rudolf Hurnaus, Manfred Reiffen, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht