申请人:Shionogi & Co., Ltd.
公开号:US04882338A1
公开(公告)日:1989-11-21
A compound of the formula: ##STR1## (wherein R is hydrogen, hydroxy, methoxy, acetoxy, acetoxymethyl or trifluoromethyl; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each is hydrogen, hydroxy, optionally substituted C.sub.1 -C.sub.5 alkoxy, acetoxy, propynyloxy, allyloxy or benzyloxy; or R.sup.2 and R.sup.3 taken together form methylenedioxy; R.sup.5 is hydrogen, hydroxymethyl, C.sub.2 -C.sub.4 alkoxycarbonyl, C.sub.2 -C.sub.5 acyloxymethyl or phthalidyl; and n is 0 or 1 except for the case in which R is methoxy and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each is hydrogen) or its pharmaceutically acceptable acid addition salt, being useful as anti-ulcer agents is provided through several routes.
提供了一种化合物,其化学式为:##STR1##(其中R是氢,羟基,甲氧基,乙酰氧基,乙氧甲基或三氟甲基;R.sup.1,R.sup.2,R.sup.3和R.sup.4分别为氢,羟基,可选取代的C.sub.1-C.sub.5烷氧基,乙酰氧基,丙炔氧基,烯丙氧基或苄氧基;或者R.sup.2和R.sup.3结合形成亚甲二氧基;R.sup.5是氢,羟甲基,C.sub.2-C.sub.4烷氧羰基,C.sub.2-C.sub.5酰氧甲基或邻苯二酸酐基;n为0或1,除非R为甲氧基且R.sup.1,R.sup.2,R.sup.3,R.sup.4和R.sup.5分别为氢),或其药学上可接受的酸加盐,用作抗溃疡剂,可以通过多种途径制备。