2,4(1H,3H)-Pyrimidinedione, 1-[(2R,3R,4S,5R,9S)-9-[bis(4-methoxyphenyl)phenylmethoxy]-3-hydroxy-4-(phenylmethoxy)-1,7-dioxaspiro[4.4]non-2-yl]-5-methyl-

2,4(1H,3H)-Pyrimidinedione, 1-[(2R,3R,4S,5R)-3-(acetyloxy)-9-hydroxy-4-(phenylmethoxy)-1,7-dioxaspiro[4.4]non-2-yl]-5-methyl-

2-O-Methyl-2′,3′-O-(1-methylethylidene)uridine

3′-Guanylic acid, 2′-O-methylguanylyl-(3′→5′)-

Pyridinium, 3-(aminocarbonyl)-1-[5-O-[hydroxy(phosphonooxy)phosphinyl]-β-D-ribofuranosyl]-, inner salt, P′→5′-ester with 2-bromo-1-(4-methyl-1-β-D-ribofuranosyl-1H-imidazol-5-yl)ethanone