申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US04217305A1
公开(公告)日:1980-08-12
Novel phenylethanolamine derivatives represented by the formula ##STR1## wherein R represents a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, an amino group, a lower acylamino group, a lower alkylsulfonyl group, or a lower alkylsulfonylamino group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents hydrogen or a lower alkyl group; R.sub.5 represents an aryl group which may have a substituent, a benzodioxane ring group which may have a substituent, an aryloxy group which may have a substituent, or an arylthio group which may have a substituent; said R.sub.5 being, however, a benzodioxane ring group which may have a substituent, an aryloxy group which may have a substituent, or an arylthio group which may have a substituent when R is a hydroxyl group; and n represents 0 or an integer of 1-3 and the acid addition salts thereof. The compounds of this invention exhibit .alpha.- and .beta.-adrenergic blocking actions and are useful as antihypertensive agents.
该专利申请涉及一类新的苯乙醇胺衍生物,其化学式为##STR1##其中,R代表氢原子、卤素原子、羟基、低碳基、低碳氧基、低碳硫基、氨基、低酰胺基、低烷基磺酰基或低烷基磺酰氨基;R.sub.1、R.sub.2、R.sub.3和R.sub.4,可以相同也可以不同,每个都代表氢或低碳基;R.sub.5代表苯基,可以有取代基,苯并二氧杂环环基,可以有取代基,芳氧基,可以有取代基,或芳硫基,可以有取代基;当R为羟基时,R.sub.5为苯并二氧杂环环基,可以有取代基,芳氧基,可以有取代基,或芳硫基,可以有取代基;n代表0或1-3的整数及其酸盐。这些化合物表现出α-和β-肾上腺素能阻滞作用,可用作降压剂。