| 摘要 |
Compounds selected from the group consisting of amines of the formula I <IMAGE> (I) in which R1 and R2 stand for a member selected from lower alkyl, lower alkenyl, cycloalkyl having 4 to 7 ring members, phenyl-lower alkyl, phenyl-lower alkyl substituted in the phenyl residue by a member selected from lower alkyl, lower alkoxy, halogen and trifluoromethyl, lower alkylene, oxa-lower alkylene, aza-lower alkylene and thia-lower alkylene, and one of R1 and R2 stands for hydrogen and the other has the above meanings, Ph stands for a member selected from meta- and para-phenylene and meta- and para-phenylene substituted by a member selected from lower alkyl, lower alkenyl, lower alkinyl, mercapto-lower alkyl, hydroxy-lower alkyl, phenyl, cyano, hydrogen, halogen, lower alkoxy, lower alkenyloxy, lower alkinyloxy, mono-, di and trihalogeno-lower alkyl, cycloalkyl having 5 to 7 ring members and phenoxy, and R3 stands for a member selected from lower alkyl and cycloalkyl having 5 to 7 ring member, and their condensation product with aldehydes and ketones, and their salts are useful as agents for the inhibition of the cardiac beta -receptors.
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