2-氨基-6-巯嘌呤

[2-(2-氨基-6-氯-9H-嘌呤-9-基)乙基]丙二酸二甲酯

9-benzyl-6-chloro-2-phenylpurine

(2-二苯甲基氧基羰基氨基-6-氧代-1,6-二氢嘌呤-9-基)-乙酸

6-[[4-(trifluoromethyl)phenyl]methoxy]-7H-purin-2-amine