甲醇

2-amino-6-chloro-9-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)purine

苯基氰胺

5-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]imidazole-4-carbonitrile

鸟苷