2,6-二氨基-5H-嘧啶-4-酮

2-Amino-4-(2-hydroxyethylthio)-7H-pyrrolo[2,3-d]pyrimidin

2-氰基-4,4-二乙氧基丁酸乙酯

7-脱氮-2'-脱氧鸟苷