申请人:Shionogi & Co., Ltd.
公开号:US04506079A1
公开(公告)日:1985-03-19
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).
本发明公开了用于制备3-取代-2-羟基丙基芳基醚β受体阻滞剂的便利中间体,以及以下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是氢或卤素;Y是卤素,羟基,较低的酰氧基,氨基,较低的烷基氨基,较低的芳基烷基氨基,较低的酰胺基,二较低的烷基氨基,较低的烷基亚烷基氨基,N-较低的烷基-N-较低的芳基烷基氨基,二较低的酰胺基,N-较低的烷基-N-较低的酰胺基或N-三较低的硅烷基氨基;P和R中的一个与Q结合表示较低的烷基或烯基,可选地由O,N或S中断并可选地取代为较低的烷基,较低的芳基烷基,较低的羧酸酰,羧酸,受保护的羧酸;羟基,较低的烷氧基,较低的酰氧基,氧代;氨基,较低的烷基氨基,较低的酰胺基,硝基,亚硝基,较低的烷基硫基,较低的磺酰酰基或卤素;其余的R或P为氢或卤素;和虚线表示存在一个或两个双键)。