2-amino-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)purine

6-巯基鸟嘌呤核苷

2-benzoylamidopurine

1-乙酰基-2,3,5-三苯甲酰氧基-1-beta-D-呋喃核糖

2-氨基嘌呤