申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04675324A1
公开(公告)日:1987-06-23
This invention provides a benezene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy substituted by carboxy or protected carboxy, acylamino which may have lower alkyl on the amino moiety, or aryloxy which may have halogen, R.sup.2 is hydrogen or halogen, X is --O-- or ##STR2## in which R.sup.3 is hydrogen, lower alkyl or acyl and A is a group of the formula: ##STR3## in which R.sup.4 is hydrogen, lower alkenyl, lower alkynyl or alkyl which may have suitable substituent(s) selected from the groups consisting of hydroxy, acyl, lower alkoxy, di(lower)alkylamino, carboxy, protected carboxy and aryl; or R.sup.1 is hydrogen or lower alkoxy, R.sup.2 is hydrogen, X is ##STR4## in which R.sub.a.sup.3 is lower alkanoyl and A is a group of the formula: ##STR5## and pharmaceutically acceptable salts thereof. This compound possesses diuretic activity, uricosuric activity and vasodilative activity and are useful as a diuretic agent, uricosuric agent and anti-hypertensive agent. The invention further relates to processes for the preparation of this compound and pharmaceutical composition comprising compound of the above formula.
本发明提供了一种苯并杂环化合物,其化学式为:##STR1## 其中R.sup.1是卤素、硝基、氨基、羟基、低烷基、低烷氧基(该基团上带有羧基或受保护的羧基)、酰胺基(该基团上的氨基部分可能带有低烷基)或氧杂芳基(该基团上可能带有卤素);R.sup.2是氢或卤素;X是--O--或##STR2## 其中R.sup.3是氢、低烷基或酰基,A是以下式的基团:##STR3## 其中R.sup.4是氢、低烯基、低炔基或烷基(该基团可能带有适当的取代基,所述取代基被选择自羟基、酰基、低烷氧基、二(低)烷基氨基、羧基、受保护的羧基和芳基);或者R.sup.1是氢或低烷氧基,R.sup.2是氢,X是##STR4## 其中R.sub.a.sup.3是低烷酰基,A是以下式的基团:##STR5## 及其药学上可接受的盐。该化合物具有利尿活性、尿酸排泄活性和血管扩张活性,并可用作利尿剂、尿酸排泄剂和降压剂。本发明还涉及制备该化合物的方法和包含上述化合物的制药组合物。