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(2007/10/02)5-Amino-1-(2'-deoxy-β-D-ribofuranosyl)imidazole-4-carboxamide
benzyl chloroformate
5-amino-1-(3,5-di-O-tert-butyldimethylsilyl-2-deoxy-β-D-ribofuranosyl)imidazole-4-carboxamide
tert-butyldimethylsilyl chloride
5-(benzyloxycarbonyl)amino-1-(2-deoxy-β-D-ribofuranosyl)imidazole-4-carboxamide
2'-deoxyxanthosine
5-(benzyloxycarbonyl)amino-1-(5-O-dimethoxytrityl-2-deoxy-β-D-ribofuranosyl)imidazole-4-carboxamide
(3-{(2R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-[(2-chloro-phenoxy)-(2-cyano-ethoxy)-phosphoryloxy]-tetrahydro-furan-2-yl}-5-carbamoyl-3H-imidazol-4-yl)-carbamic acid benzyl ester