2-[(2,4,6-trioxo-1,3-diazinan-1-yl)methoxy]ethyl acetate

9-(2-乙酰氧基乙氧基甲基)鸟嘌呤

2-[(2-amino-6-oxo-3H-purin-7-yl)methoxy]ethyl acetate

2-[(4-amino-5-cyanopyrrolo[2,3-d]pyrimidin-7-yl)methoxy]ethyl acetate

4-amino-5-cyano-1-[(2-acetoxyethoxy)methyl]pyrrolo[2,3-d]pyrimidine