Arylethanolamines derived from salicylamide with .alpha.- and .beta.-adrenoceptor blocking activities. Preparation of labetalol, its enantiomers and related salicylamides
作者:James E. Clifton、Ian Collins、Peter Hallett、David Hartley、Lawrence H. C. Lunts、Philip D. Wicks
DOI:10.1021/jm00348a013
日期:1982.6
A series of phenethanolamines (3) based on salicylamide has been prepared and shown to possess beta-adrenergic blocking properties. When the basic nitrogen atom was substituted by some aralkyl groups, the compounds also blocked alpha-adrenoceptors. The 1-methyl-3-phenylpropyl derivative labetalol (34) is antihypertensive in animals and man, and syntheses of its four stereoisomers are described. The
已经制备了一系列基于水杨酰胺的苯乙醇胺(3),并显示出具有β-肾上腺素阻断特性。当碱性氮原子被某些芳烷基取代时,这些化合物也会封闭α-肾上腺素受体。1-甲基-3-苯基丙基衍生物拉贝洛尔(34)在动物和人类中均具有降压作用,并描述了其四种立体异构体的合成。在两个不对称中心具有R构型的对映体90具有大部分的β-阻断活性,但是几乎没有α-阻断活性。在醇碳上具有S构型并且在氨基取代基上具有R构型的化合物主要是α-肾上腺素受体阻断剂89。