2-(乙酰氧基甲基)-4-碘乙酸丁酯

2-氨基-6-氯嘌呤

2-(乙酰氧基甲基)-4-溴丁基乙酸酯

Acetic acid 2-acetoxymethyl-4-methanesulfonyloxy-butyl ester

2-[(acetyloxy)methyl]-4-(2-amino-6-oxo-6,9-dihydro-1H-purin-9-yl)butyl acetate