2,4-二氨基-5-甲酰氨基-6-羟基嘧啶

9-(2-deoxy-β-D-erythropentopyranosyl)-2,4-diamino-5-formamidopyrimid-6-one

9-(2-deoxy-α-D-erythropentopyranosyl)-2,4-diamino-5-formamidopyrimid-6-one

D-(+)-核糖酸-gamma-内酯

鸟嘌呤