SPECIFIC OPTICAL ISOMERS OF 2-AMINOETHYL-1,4-BENZODIOXANES, PROCESS FOR THEIR PREPARATION AND THEIR PHARMACEUTICAL COMPOSITIONS

摘要

Compounds of the formula wherein each of X and Y are hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl; each of p and q is the integer 1 or 2 and each of m and n is an integer from 1 to 4 and of acid addition salts thereof, with hypotensive and bradycardic effects are prepared, for example, by chiral reduction of Schiff's bases corresponding to the formula I.