α-L-talo-Heptofuranouridine, [P(R)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-2′-fluoro-5-methyl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

α-L-galacto-Heptofuranothymidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-2′-fluoro-5-methyl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

α-L-talo-Heptofuranouridine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-2′-fluoro-5-methyl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5-methyl-α-L-galacto-heptofuranothymidine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5-methyl-α-L-talo-heptofuranouridine

α-L-galacto-Heptofuranouridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxothymidylyl-(3′→5′)-2′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5-methyl-, 7′-(4-methylbenzenesulfonate)

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5-methyl-α-L-galacto-heptofuranothymidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-2′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5-methyl-α-L-talo-heptofuranouridine

α-L-talo-Heptofuranouridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxothymidylyl-(3′→5′)-2′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5-methyl-, 7′-(4-methylbenzenesulfonate)

1-[2,6-Dideoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-2-fluoro-7-O-[(4-methylphenyl)sulfonyl]-α-L-galacto-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,6-Dideoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-2-fluoro-7-O-[(4-methylphenyl)sulfonyl]-α-L-talo-heptofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1S,3S)-3-[(2R,3S,5R)-3-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1R,3S)-3-[(2R,3S,5R)-3-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1S,3R)-3-[(2R,3S,5R)-3-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1R,3R)-3-[(2R,3S,5R)-3-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1R,3R)-3-[(2R,3S,5R)-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1S,3S)-3-[(2R,3S,5R)-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1R,3S)-3-[(2R,3S,5R)-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1S,3R)-3-[(2R,3S,5R)-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]tetrahydro-2-furanyl]-1-oxido-2-phosphorinanyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxothymidylyl-(3′→6′)-5′-(3-bromopropyl)-5′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-α-L-lyxo-Hexofuranothymidine