Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[(2S)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]-, 3′-[2-cyanoethyl [P(S)]-N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[(2S)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]-, 3′-[2-cyanoethyl [P(R)]-N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[(2R)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]-, 3′-[2-cyanoethyl [P(S)]-N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[(2R)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[(2R)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]cytidine

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[(2S)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]cytidine

N-Acetyl-2′-deoxy-5-[(2R)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]cytidine

N-Acetyl-2′-deoxy-5-[(2S)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]cytidine

2′-Deoxy-5-[(2R)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]cytidine

2′-Deoxy-5-[(2S)-4-(2-nitrophenyl)-1,3-dioxan-2-yl]cytidine

5′-O-[[4-(Acetyloxy)phenyl](4-methoxyphenyl)phenylmethyl]-2′-deoxycytidine

Cytidylyl-(3′→5′)-cytidylyl-(3′→5′)-cytidylyl-(3′→5′)-uridylyl-(3′→5′)-cytidylyl-(3′→5′)-cytidylyl-(3′→5′)-uridylyl-(3′→5′)-uridine

Adenylyl-(3′→5′)-adenylyl-(3′→5′)-uridylyl-(3′→5′)-adenylyl-(3′→5′)-guanylyl-(3′→5′)-guanylyl-(3′→5′)-guanosine

(6R,8S,9R)-8-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-7,8,9,10-tetrahydro-3-methyl-6,9-epoxypyrimido[1,2-a]azepin-2(6H)-one

Cyclopentyl N-[1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

1,2-Dithiolan-4-yl N-[1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate