2-氨基-4-氧代-4,7-二氢-3H-吡咯并[2,3-D]嘧啶-5-甲腈

2,6-二氨基-4-嘧啶醇

2-氯-2-甲酰基乙腈

甲酸甲酯

氯乙腈

2,4-二氨基-6-羟基嘧啶

(2-acetamido-5-cyano-4-oxo-3,4-dihydro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl acetate

3,7-bis(methoxymethyl)-5-methyl-2-(methylthio)-3H-pyrrolo[2,3-d]pyrimidin-4(7H)-one

2-amino-3,7-bis(methoxymethyl)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

N-(3,7-bis(methoxymethyl)-5-methyl-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-2-yl)acetamide

7-hydroxymethyl-7-deazaguanine