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.
通式为:##STR1## 其中R.sup.1是除了吡啶基之外的杂环基,未取代或取代有较低烷基或较低烷氧羰基;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,或呋喃单取代或多取代有烷基且R.sup.2为氢时,则R.sup.3是羧基的功能衍生物。在适用的情况下,其药物可接受的盐是透明质酸酶抑制剂,有用作抗过敏剂。