Novel xanthine compounds represented by the following formula: ##STR1## and pharmaceutically acceptable salts thereof have a diuretic action, a renal-protecting action and a vasodilative action. The compounds are useful as a diuretic, a renal-protecting agent and an antihypertensive agent.
新型
黄嘌呤化合物的
化学式如下:##STR1##及其药用盐具有利尿作用、肾脏保护作用和扩血管作用。这些化合物可用作利尿剂、肾脏保护剂和降压药。