2',3',5'-tri-O-acetyl-1-[(2-methoxyethoxy)methyl]inosine

2',3',5'-tri-O-acetyl-1-[(benzyloxy)methyl]inosine

2',3',5'-tri-O-acetyl-1-[(2-trimethylsilylethoxy)methyl]inosine

N-(2',3',5'-tri-O-benzoyl-β-D-ribofuranosyl)diaminomaleonoitrile

methyl 4-cyano-1-(β-D-ribofuranosyl)imidazole-5-carboximidate