Substitution reactions of N,N-dimethyl-3-chloro-3-phenylpropylamine with 1-methylpiperazine and a series of analogues afforded 1-(3-dimethylamino-1-phenylpropyl)piperazines I-V. A similar substitution with piperidine resulted in the diamine VIII. Hydrolysis of the carbamate V gave the secondary amine VI which was transformed by alkylation with cyclopropylmethyl bromide to compound VII. 3-Dimethylamino-3-phenylpropanol was treated with thionyl chloride to give N,N-dimethyl-3-chloro-3-phenylpropylamine (IX) which reacted with 1-methylpiperazine and afforded the triamine X. The maleates of the amines prepared exhibited hypotensive effects of short duration (III, IV, VI, VII, X) and moderate antiarrhythmic effects (V-VIII). The phenylpiperazine derivative III showed a significant antiarrhythmic action and a high local anaesthetic activity.
N,N-二甲基-3-
氯-3-苯基
丙胺与1-甲基
哌嗪及一系列类似物的取代反应,得到了1-(3-
二甲氨基-1-苯基丙基)
哌嗪I-V。与
哌啶类似物的取代反应则得到了二胺VIII。将
碳酸酯V
水解后得到次级胺VI,再通过与
环丙基甲基溴化物烷基化,得到化合物VII。将3-
二甲氨基-3-苯基
丙醇与
氯化硫酰处理,得到N,N-二甲基-3-
氯-3-苯基
丙胺IX,进而与1-甲基
哌嗪反应,得到三胺X。所制备的胺的
马来酸盐表现出短暂的降压作用(III、IV、VI、VII、X)和适度的抗心律失常作用(V-VIII)。苯基
哌嗪衍
生物III表现出显著的抗心律失常作用和高局部麻醉活性。