申请人:Sawai Pharmaceutical Co., Ltd.
公开号:US04755506A1
公开(公告)日:1988-07-05
Compounds of the general formula: ##STR1## wherein A and B are both hydrogen, or one of A and B is a group (G) of the formula: ##STR2## and the other is a group R.sup.5 wherein R.sup.1 is an aryl group or a heterocyclic group, both of them being optionally substituted, and R.sup.4 and R.sup.5 are both hydrogen or together form a single chemical bond, R.sup.2 and R.sup.2 ' are independently hydrogen, halogen, nitro, lower alkyl or lower alkoxy, and R.sup.3 and R.sup.3 ' are independently carboxy or its functional derivative, with the proviso that (a) when A and B are both hydrogen, then R.sup.2 and R.sup.2 ' cannot be both hydrogen, and, where applicable, pharmaceuticably acceptable salts thereof are hyaluronidase inhibitors, and useful as anti-allergic agent and anti-ulcerous agent. Among the compound (I'), those wherein when one of A and B is the group (G) and the other is the group R.sup.5 wherein R.sup.4 and R.sup.5 together form a single chemical bond, R.sup.1 is unsubstituted aryl and R.sup.2 and R.sup.2 ' are both hydrogen, then R.sup.3 and R.sup.3 ' are independently carboxy or its functional derivative other than methyl ester, are novel.
一般式为:##STR1## 其中A和B均为氢,或者A和B中的一个是式为:##STR2## 的基团(G),另一个是R.sup.5基团,其中R.sup.1是取代的芳基或杂环基团,R.sup.4和R.sup.5均为氢或者一起形成单一的化学键,R.sup.2和R.sup.2'独立地为氢、卤素、硝基、低级烷基或低级烷氧基,R.sup.3和R.sup.3'独立地为羧基或其官能衍生物,但是当A和B均为氢时,R.sup.2和R.sup.2'不能同时为氢。其中,化合物(I')中,当A和B中的一个是基团(G),另一个是R.sup.5基团,其中R.sup.4和R.sup.5一起形成单一的化学键,R.sup.1为非取代芳基,R.sup.2和R.sup.2'均为氢时,R.sup.3和R.sup.3'独立地为羧基或其官能衍生物(甲酯除外),是新的。该化合物及其药学上可接受的盐是透明质酸酶抑制剂,可用作抗过敏剂和抗溃疡剂。