1-[2-deoxy-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-β-D-glucopyranosyl]cytosine

4-氨基-2-甲氧基嘧啶

钠氰胺

4-氨基-2-氯嘧啶

4-amino-1-(3-(hydroxymethyl)-4,5-dihydroisoxazol-5-yl)pyrimidin-2(1H)-one