Synthesis and Antihypertensive Activity of 3-Acetoxy-2,3-dihydro-5-(2-(dimethylamino)ethyl)-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one (Diltiazem) Derivatives Having Substituents at the 8 Position.
作者:Hiroaki YANAGISAWA、Koichi FUJIMOTO、Yasuo SHIMOJI、Takuro KANAZAKI、Kanako MIZUTARI、Hiroshi NISHINO、Hiroshi SHIGA、Hiroyuki KOIKE
DOI:10.1248/cpb.40.2055
日期:——
In order to improve the potency and duration of biological actions of diltiazem, a number of 1, 5-benzothiazepine derivatives having the substituents at the 8 position were prepared and evaluated for their antihypertensive activity in spontaneously hypertensive rats. The introduction of methyl, ethyl, isopropyl, benzyl, methoxy, ethoxy, phenoxy, and methylthio groups increased the antihypertensive activity and prolonged duration of action, whereas cyclohexyl, cyclopentoxy, tolyloxy, p-methoxyphenoxy and phenylthio derivatives were less active than diltiazem. Among them, the 8-benzyl and phenoxy derivatives showed the most potent and long-lasting antihypertensive action.
为了改善地尔硫卓的药效和生物作用持续时间,我们制备了一些在 8 位上具有取代基的 1,5-苯并硫氮杂卓衍生物,并对其在自发性高血压大鼠体内的抗高血压活性进行了评估。甲基、乙基、异丙基、苄基、甲氧基、乙氧基、苯氧基和甲硫基的引入增加了抗高血压活性并延长了作用时间,而环己基、环戊基、甲苯基、对甲氧基苯氧基和苯硫基衍生物的活性低于地尔硫卓。其中,8-苄基和苯氧基衍生物的降压作用最强且持续时间最长。