申请人:Chugai Seiyaku Kabushiki Kaisha
公开号:US04661607A1
公开(公告)日:1987-04-28
Xanthone derivatives of the formula (I): ##STR1## (wherein W, X, Y and Z which may be the same or different represent a hydrogen atom, a halogen atom or a lower alkyl group having 1 to 4 carbon atoms; A is hydrogen atom or together with Z forms a --CH.sub.2 -- group which binds to a phenyl carbon adjacent the phenyl carbon to which the oxygen of the group ##STR2## is attached to form a cyclic methylene chain; B is a hydroxymethyl group, a lower alkoxycarbonyl group having 1 to 4 carbon atoms, or a carboxyl group, provided that W is neither a hydrogen atom nor a 7-position methyl group when X, Y and Z are each a hydrogen atom, and A is a hydrogen atom and B is a carboxyl group or a lower alkoxycarbonyl group), as well as non-toxic salts thereof when B is a carboxyl group, and a process for preparing the same are disclosed. The compounds of formula (I) in accordance with the present invention are useful as diuretics having uricosuric activity and can be used in the treatment of edema or hypertension.
本发明公开了式(I)的黄酮衍生物:##STR1## (其中W、X、Y和Z可以相同也可以不同,分别代表氢原子、卤素原子或具有1至4个碳原子的较低烷基;A为氢原子或与Z一起形成一个--CH.sub.2--基团,该基团与邻位苯基碳相连,该苯基碳与式##STR2## 中的氧原子相连,形成一个环状亚甲基链;B为羟甲基基团、具有1至4个碳原子的较低烷氧羰基基团或羧基,但当X、Y和Z分别为氢原子,且A为氢原子且B为羧基或较低烷氧羰基基团时,W不能是氢原子或7位甲基基团),以及当B为羧基时的非毒性盐。本发明的式(I)化合物可用作利尿剂,具有排尿酸活性,并可用于水肿或高血压的治疗。同时,本发明还公开了制备上述化合物的方法。