rogen, are alkylpiperazino having from 1 to 3 carbon atoms in the alkyl or hydroxyalkylpiperazino having from 1 to 3 carbon atoms in the alkyl, R2 is a member selected from the group consisting of --CH2 OH and --COOH, m is the integer 3 or 4, and n is the integer 0, or, when m is 3 and R2 is --CH2 OH, 1, and (2) physiologically-compatible acid addition salts thereof, and the remainder to 100% by w