Propanoic acid, 2,2-dimethyl-, 1,1′-[[[(3S,5R,6R,7S)-7-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-6-methoxy-4-oxaspiro[2.4]hept-1-yl]phosphinylidene]bis(oxymethylene)] ester

Propanoic acid, 2,2-dimethyl-, 1,1′-[[[(3S,5R,6R,7S)-5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-7-hydroxy-6-methoxy-4-oxaspiro[2.4]hept-1-yl]phosphinylidene]bis(oxymethylene)] ester

Propanoic acid, 2,2-dimethyl-, 1,1′-[[[(3S,5R,6R,7S)-5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-7-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-methoxy-4-oxaspiro[2.4]hept-1-yl]phosphinylidene]bis(oxymethylene)] ester

Phosphonic acid, P-[(3S,5R,6R,7S)-5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-7-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-methoxy-4-oxaspiro[2.4]hept-1-yl]-, dimethyl ester

Uridine, 5′-[[(3-chloropropyl)sulfonyl]amino]-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-

Uridine, 5′-amino-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-

Uridine, 5′-azido-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-O-methyl-

Uridine, 5′-deoxy-2′-O-methyl-5′-[(methylsulfonyl)amino]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-deoxy-2′-O-methyl-5′-[(methylsulfonyl)amino]-

2(1H)-Pyridinone, 1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-2-fluoro-β-D-ribofuranosyl]-

2(1H)-Pyridinone, 1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-2-fluoro-β-D-ribofuranosyl]-