申请人:Japan Energy Corporation
公开号:EP1043021A1
公开(公告)日:2000-10-11
The present invention relates to a type 2 helper T cell-selective immune response inhibitor, an immune response regulator and an anti-allergic agent, individually comprising, as an active ingredient, a purine derivative represented by General Formula (I):
wherein
R2 is hydrogen or a hydrocarbon group in which -CH2- not directly bound to the purine skeleton may be substituted by CO, SO2, O or S, and C-H not directly bound to the purine skeleton may be substituted by N, C-halogen or C-CN;
R6 is hydroxyl, amino or amino which is mono- or di-substituted by a hydrocarbon group(s);
R8 is hydroxyl, mercapto, acyloxy or hydrocarbon group-substituting oxycarbonyloxy; and
R9 is a hydrocarbon group in which -CH2- not directly bound to the purine skeleton may be substituted by CO, SO2, O or S, and C-H not directly bound to the purine skeleton may be substituted by N, C-halogen or C-CN;
or its tautomer or a salt of the purine derivative or the tautomer.
本发明涉及一种 2 型辅助性 T 细胞选择性免疫应答抑制剂、免疫应答调节剂和抗过敏剂,其活性成分分别包括通式 (I) 所代表的嘌呤衍生物:
其中
R2 是氢或烃基,其中与嘌呤骨架不直接结合的-CH2-可被 CO、SO2、O 或 S 取代,与嘌呤骨架不直接结合的 C-H 可被 N、C-卤素或 C-CN 取代;
R6 是羟基、氨基或被烃基单取代或二取代的氨基;
R8 是羟基、巯基、酰氧基或被烃基取代的氧羰氧基;以及
R9 是烃基,其中与嘌呤骨架不直接结合的-CH2-可被 CO、SO2、O 或 S 取代,与嘌呤骨架不直接结合的 C-H 可被 N、C-卤素或 C-CN 取代;
或其同系物,或该嘌呤衍生物或其同系物的盐。