申请人:Shionogi & Co., Ltd.
公开号:US04582905A1
公开(公告)日:1986-04-15
Convenient intermediates for preparing 3-substituted-2-hydroxypropyl aryl ether .beta.-blockers, a reaction to the intermediates of the following formula and a conversion to obtain the said .beta.-blockers are disclosed. ##STR1## (wherein X is hydrogen or halogen; Y is halogen, hydroxy, lower acyloxy, amino, lower alkylamino, lower aralkylamino, lower acylamino, di-lower alkylamino, lower alkyleneamino, N-lower alkyl-N-lower aralkylamino, di-lower acylamino, N-lower alkyl-N-lower acylamino or N-tri-lower alkylsilylamino; one of P and R combined together with Q represents lower alkylene or alkenylene optionally interrupted by O, N or S and optionally substituted by lower alkyl, lower aralkyl, lower carboxylic acyl, carboxy, protected carboxy; hydroxy, lower alkoxy, lower acyloxy, oxo; amino, lower alkylamino, lower acylamino, nitro, nitroso, lower alkylthio, lower sulfonic acyl or halogen; and the remaining R or P is hydrogen or halogen; and dotted line represents the presence of one or two double bonds).
本发明揭示了用于制备3-取代-2-羟基丙基芳基醚β-受体阻滞剂的方便中间体,以及以下公式的中间体的反应和转化以获得所述β-受体阻滞剂。 ##STR1## (其中X为氢或卤素;Y为卤素,羟基,低酰氧基,
氨基,低烷基
氨基,低芳基烷基
氨基,低酰胺基,二低烷基
氨基,低烷基亚烷基
氨基,N-低烷基-N-低芳基烷基
氨基,二低酰胺基,N-低烷基-N-低酰胺基或N-三低烷基
硅烷基
氨基;P和R中的一个与Q结合表示可选地由O,N或S中断的低烷基或烷烯基,且可选地被低烷基,低芳基,低
羧酸酰,羧基,保护的羧基,羟基,低烷氧基,低酰氧基,氧代,
氨基,低烷基
氨基,低酰胺基,硝基,亚硝基,低烷基
硫基,低
磺酸酰或卤素取代的低烷基或烷烯基取代;剩余的R或P为氢或卤素;虚线表示存在一个或两个双键)。