申请人:Sawai Pharmaceutical Co., Ltd.
公开号:US05006548A1
公开(公告)日:1991-04-09
Compounds of the general formula: ##STR1## wherein R.sup.1 is heterocyclic group other than pyridyl and which is unsubstituted or substituted with lower alkyl or lower alkoxycarbonyl, R.sup.2 is hydrogen, halogen, or nitro, and R.sup.3 is carboxy group or its functional derivative, with the proviso that when R.sup.1 is an unsubstituted furyl, or furyl mono- or polysubstituted with alkyl and R.sup.2 is hydrogen, then R.sup.3 is functional derivative of carboxy and, where applicable, pharmaceutically acceptable salts thereof are hyaluronidase inhibitors and useful as anti-allergic agent.
通用公式为:##STR1## 其中 R.sup.1 是除吡啶基外的杂环基,未取代或取代为较低的烷基或较低的烷氧羰基,R.sup.2 是氢、卤素或硝基,R.sup.3 是羧基或其功能衍生物,但当 R.sup.1 是未取代的呋喃基,或呋喃基单取代或多取代为烷基且 R.sup.2 为氢时,则 R.sup.3 是羧基的功能衍生物,并且相应的药用盐是透明质酶抑制剂,可用作抗过敏剂。