Acylation of 4-cyclopentylaniline (I) with chloracetyl chloride, 3-chloropropionyl chloride, 4-chlorobutyryl chloride and 2-bromo-4-methylvaleryl bromide gave the halogenoacyl derivatives IV - VII out of which the first two were subjected to substitution reactions with diethylamine and piperidine. The N-(aminoacyl) derivatives VIII - XI obtained were reduced with lithium aluminium hydride to the N-(aminoalkyl) derivatives XII and XV. N-Ethyl-4-cyclopentylaniline (XVI), prepared by reduction of N-(4-cyclopentylphenyl)acetamide (II), was similarly transformed via the chloroacetyl derivative XVII to the amide XVIII and the diamine XIX. Salts of the compounds prepared (amino amides and diamines) bring about in higher doses central excitation which is apparently in close connection with the found discoordinating effect of a part of products (VIII - XI, XIII) in the rotarod test, further with the antireserpine effects in the tests of antagonization of reserpine ptosis and hypothermia (VIII, X, XII, XIII) and finally with the anorectic effect of compound X. All substances showed a mild spasmolytic effect of the anticholinergic type. On the other hand, the expected local anaesthetic effect was found only with compounds VIII, XVIII, XIX.
用氯乙酰氯、3-氯丙酰氯、4-氯丁酰氯和2-溴-4-甲基戊酰溴对4-环戊基苯胺(I)进行酰化反应,得到卤代酰衍生物IV-VII,其中前两种被置于取代反应中,与二乙胺和哌啶反应。所得的N-(氨基酰)衍生物VIII-XI被氢化铝锂还原为N-(氨基烷基)衍生物XII和XV。通过还原N-(4-环戊基苯基)乙酰胺(II)制备的N-乙基-4-环戊基苯胺(XVI)也被类似地转化为氯乙酰衍生物XVII,然后形成酰胺XVIII和二胺XIX。所制备的化合物盐(氨基酰胺和二胺)在较高剂量下引起中枢兴奋,这显然与部分产物(VIII-XI,XIII)在旋转杆试验中发现的失调效应密切相关,进一步与抗利血平效应在抗利血平眼下垂和低体温测试中(VIII,X,XII,XIII)以及化合物X的厌食效应有关。所有物质均表现出轻微的抗胆碱能痉挛作用。另一方面,预期的局部麻醉效应仅在化合物VIII,XVIII,XIX中发现。