1-乙酰基-2,3,5-三苯甲酰氧基-1-beta-D-呋喃核糖

N-2-乙酰鸟嘌呤

7-(2',3',5'-tri-O-acetyl-β-D-ribofuranosyl)-N2-acetylguanine

1,2,3,5-四-O-乙酰基-β-D-呋喃核糖

(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(2-bromo-6-oxo-1,6-dihydro-7H-purin-7-yl)tetrahydrofuran-3,4-diyl diacetate