申请人:KYOWA HAKKO KOGYO CO., LTD.
公开号:EP0415456A2
公开(公告)日:1991-03-06
Novel xanthine compounds represented by the following formula:
wherein each of R¹, R² and R³ independently represents a hydrogen atom or a lower alkyl group;
each of X¹ and X² independently represents an oxygen or sulfur atom;
represents a single bond or a double bond;
Y represents a single bond or an alkylene group, n represents 0 or 1, each of W¹ and W² independently represents a hydrogen atom, a lower alkyl or amino group, Z represents -CH₂-, -O-, -S- or -NH-residues; provided that when Q is
then R¹, R² and R³ are not simultaneously methyl; and physiologically acceptable salts thereof have a diuretic effect, a renal-protecting effect and/or a bronchodilatory effect.
The compounds are useful as a diuretic, a renal-protecting agent and /or bronchodilator.
由下式代表的新型黄嘌呤化合物:
其中 R¹、R² 和 R³ 各自独立地代表氢原子或低级烷基;
X¹和X²各自独立地代表氧原子或硫原子;
代表单键或双键;
Y代表单键或亚烷基,n代表0或1,W¹和W²各自独立地代表氢原子、低级烷基或氨基,Z代表-CH₂-、-O-、-S-或-NH-残基;条件是当Q是
则 R¹、R² 和 R³ 不同时为甲基;其生理上可接受的盐类具有利尿作用、肾保护作用和/或支气管扩张作用。
这些化合物可用作利尿剂、肾保护剂和/或支气管扩张剂。