The non-characterized bromo derivative Ia, obtained by bromination of 4-cyclopentylacetophenone, afforded by substitution reactions with diethylamine, benzylmethylamine, benzylisopropylamine, piperidine, morpholine, 1-methylpiperazine and 1-(2-hydroxyethyl)piperazine the amino ketones IIa-VIIIa which were reduced with lithium aluminium hydride to the aminoalcohols IIb-VIIIb. Compounds IIIb and IVb were debenzylated by catalytic hydrogenation on palladium to the secondary amines IXb and Xb. The compounds prepared have central stimulant effects in higher doses which appears also in the rotarod test and in the evaluation of spontaneous motility. They have mostly a mild spasmolytic effect of the anticholinergic type, some of them bring about local anesthetic and diuretic effects. The adrenolytic and hypotensive effects were found only with single compounds.
通过对4-环戊基乙酮苯进行溴化反应得到未经表征的溴衍生物Ia,通过与二乙胺、苄甲胺、苄异丙胺、哌啶、吗啉、1-甲基哌嗪和1-(2-羟乙基)哌嗪进行取代反应,得到氨基酮IIa-VIIIa,再通过氢化铝锂还原得到氨基醇IIb-VIIIb。化合物IIIb和IVb经钯催化氢化脱苄基反应得到二级胺IXb和Xb。所制备的化合物在较高剂量下具有中枢兴奋作用,在旋转杆试验和自发运动评估中也表现出来。它们主要具有轻度抗胆碱能痉挛作用,其中一些还具有局部麻醉和利尿作用。仅有个别化合物显示出肾上腺素拮抗和降压作用。