NC69351
(5′S)-5′-O-[5-Deoxy-5-[[(1,1-dimethylethoxy)carbonyl]amino]-2,3-O-(1-ethylpropylidene)-β-D-ribofuranosyl]-5′-C-[(2S,5R,6S)-6-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-1,4-dimethyl-3-oxo-1H-1,4-diazepin-2-yl]-2′,3′-O-(1-methylethylidene)uridine