N-substituted 1-amino-3-phenoxy-propan-2-ol compounds and therapeutic compositions containing them

摘要

New N-substituted 1-amino-3-phenoxy-propan-2-ol compounds of the formula: <IMAGE> (I), wherein R1 and R2 are, individually, hydrogen or, taken together, represent a sulfur linkage, an ethylene radical or a valency bond; B is straight or branched chain alkylene or hydroxyalkylene of from 2 to 5 carbon atoms; and R3 is hydrogen or alkyl of up to 3 carbon atoms; AND THE PHYSIOLOGICALLY COMPATIBLE SALTS THEREOF; POSSESS VALUABLE CARDIAC AND CIRCULATORY ACTIVITY.