申请人:Daiichi Seiyaku Co., Ltd.
公开号:US04841076A1
公开(公告)日:1989-06-20
A benzopyran derivative represented by formula ##STR1## wherein: R.sub.1 and R.sub.2 each represents a hydrogen atom, a lower alkyl group, a substituted or unsubstituted cyclic alkyl group, a mono- or di-lower alkylamino group, a substituted or unsubsituted cyclic amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; Y.sub.1 and Y.sub.2 each represents a hydrogen atom, a lower alkyl group, a halogen atom or a trihalomethyl group; Z represents a caroxyl group, a lower alkoxy-carbonyl group, a tetrazolyl group, a hydroxyl group or --CONR.sub.3 R.sub.4 wherein R.sub.3 and R.sub.4 each represents a hydrogen atom or a lower alkyl group; n represents an integer of from 1 to 6; and the bond between the 2- and 3-positions represents a single bond or a double bond; provided that a combination wherein Y.sub.1, Y.sub.2, and R.sub.2 each represents a hydrogen atom, R.sub.1 represents a phenyl group, n represents 1, Z represents a carboxyl group or an alkoxycarbonyl group, and the bond represents a double bond, and a combination wherein Y.sub.1, Y.sub.2, and R.sub.1 each represents a hydrogen atom, R.sub.2 represents a phenyl group, n represents 1, Z represents a carboxyl group or an alkoxy-carbonyl group, and the bond represents a double bond are excluded, and pharmaceutically acceptable salts thereof are disclosed. These compounds have uricosuric activity, diuretic activity and antihypertensive activity, and are useful as pharmaceuticals.
一种苯并吡喃衍生物,由以下式子表示:##STR1## 其中:R.sub.1和R.sub.2分别表示氢原子,低级烷基,取代或未取代的环烷基,单-或双-低级烷基氨基,取代或未取代的环氨基,取代或未取代的芳基或取代或未取代的芳基烷基;Y.sub.1和Y.sub.2分别表示氢原子,低级烷基,卤原子或三卤甲基基团;Z表示羧基,低级烷氧羰基基团,四唑基,羟基或--CONR.sub.3 R.sub.4,其中R.sub.3和R.sub.4分别表示氢原子或低级烷基;n表示1到6的整数;2-和3-位置之间的键表示单键或双键;但排除其中Y.sub.1、Y.sub.2和R.sub.2均表示氢原子,R.sub.1表示苯基,n表示1,Z表示羧基或烷氧羰基基团,键表示双键的组合,以及其中Y.sub.1、Y.sub.2和R.sub.1均表示氢原子,R.sub.2表示苯基,n表示1,Z表示羧基或烷氧羰基基团,键表示双键的组合,以及其药学上可接受的盐。这些化合物具有尿酸排泄活性、利尿活性和抗高血压活性,并且可用作药物。