申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US05290782A1
公开(公告)日:1994-03-01
Novel xanthine compounds represented by the following formula: ##STR1## wherein each of X.sup.1 and X.sup.2 independently represents oxygen or sulfur; and Q represents; ##STR2## where ----- represents a single bond or a double bond; Y represents a single bond or alkylene, n represents 0 or 1, each of W.sup.1 and W.sup.2 independently represents hydrogen, lower alkyl or amino, Z represents --CH.sub.2 -, --O--, --S-- or --NH--; represents ##STR3## each of R.sup.1 and R.sup.2 independently represents hydrogen, lower alkyl, allyl or propargyl; and R.sup.3 represents hydrogen or lower alkyl, and when Q represents the groups other than ##STR4## each of R.sup.1, R.sup.2 and R.sup.3 independently represents hydrogen or lower alkyl; provided that when Q is ##STR5## then R.sup.1 R.sup.2 and R.sup.3 are not simultaneously methyl; and pharmaceutically acceptable salts thereof have a diuretic effect, a renal-protecting effect and a bronchodilatory effect.
以下是由以下公式表示的新型黄嘌呤化合物:##STR1## 其中X.sup.1和X.sup.2各自独立地表示氧或硫; Q代表; ##STR2## 其中-----表示单键或双键; Y表示单键或烷基,n表示0或1,W.sup.1和W.sup.2各自独立地表示氢,低烷基或氨基,Z表示--CH.sub.2-,--O--,--S--或--NH--;表示##STR3## R.sup.1和R.sup.2各自独立地表示氢,低烷基,烯丙基或丙炔基; R.sup.3表示氢或低烷基,当Q表示除##STR4##以外的基团时,R.sup.1,R.sup.2和R.sup.3各自独立地表示氢或低烷基; 前提是当Q为##STR5##时,R.sup.1,R.sup.2和R.sup.3不能同时为甲基; 以及其药学上可接受的盐具有利尿作用,肾保护作用和支气管扩张作用。