9 - (Β-D -呋喃核糖)嘌呤

β-烟酰胺单核苷酸

2-氯腺嘌呤核苷

2,6-二氨基嘌呤核苷

2-(5,6-dimethylbenzimidazol-1-yl)-5-(hydroxymethyl)oxolane-3,4-diol