Reactions of potassium salts of 2-methoxy-, 2-ethoxy- and 2-benzyloxyphenol with 2-methyl-3-dimethylaminopropyl chloride and 3-dimethylamino-2phenylpropyl chloride in boiling 2-butanone in the presence of potassium iodide gave the title compounds IV-VI which were partially demethylated by treatment with ethyl chloroformate in boiling benzene and by the following alkaline hydrolysis of the crude intermediates. In series a (3-aryloxy-2-methylpropylamines) the demethylation proceeded normally under the formation of the methylamino compounds VIIa-IXa; in series b (3-aryloxy-2-phenylpropylamines), however, the treatment with ethyl chloroformate effected a double cleavage resulting, after the alkaline hydrolysis, in N-methyl-2-phenylallylamine (XIII).The pharmacological testing did not confirm the expected thymoleptic effects of the compounds (IVa, VIIa); on the other hand, the benzyl ethers IXa and especially VIb exhibited strong antiarrhythmic activity.
在沸腾的2-丁酮中,钾盐2-甲氧基苯酚、2-乙氧基苯酚和2-苄氧基苯酚与2-甲基-3-二甲氨基丙基氯化物和3-二甲氨基-2-苯基丙基氯化物反应,在钾碘化物存在下生成了标题化合物IV-VI,这些化合物部分被乙酰氯在沸腾苯中处理,然后通过粗中间体的碱水解进行了去甲基化。在a系列(3-芳基氧基-2-甲基丙胺)中,去甲基化正常进行,形成了甲氨基化合物VIIa-IXa;然而,在b系列(3-芳基氧基-2-苯基丙胺)中,乙酰氯酸酯处理导致双裂解,经过碱水解后形成N-甲基-2-苯基丙烯胺(XIII)。药理学测试未证实化合物IVa、VIIa的预期抗抑郁效果;另一方面,苄基醚IXa和尤其是VIb表现出强烈的抗心律失常活性。