β-D-allo-Heptofuranouridine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-5-methyl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

β-D-allo-Heptofuranouridine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-5-methyl-2′-O-methyl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

β-D-allo-Heptofuranoadenosine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-[2-(methylamino)-2-oxoethyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

β-D-allo-Heptofuranoadenosine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-[2-(methylamino)-2-oxoethyl]-3′-O-(phenylmethyl)-β-D-allo-heptofuranocytidine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-3′-O-(phenylmethyl)-β-D-allo-heptofuranocytidine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-methyl-3′-O-(phenylmethyl)-β-D-allo-heptofuranocytidine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-[2-(methylamino)-2-oxoethyl]-3′-O-(phenylmethyl)-β-D-allo-heptofuranoguanosine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-3′-O-(phenylmethyl)-β-D-allo-heptofuranoguanosine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-methyl-3′-O-(phenylmethyl)-β-D-allo-heptofuranoguanosine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-5-methyl-2′-O-[2-(methylamino)-2-oxoethyl]-3′-O-(phenylmethyl)-β-D-allo-heptofuranouridine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-5-methyl-3′-O-(phenylmethyl)-β-D-allo-heptofuranouridine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-5-methyl-2′-O-methyl-3′-O-(phenylmethyl)-β-D-allo-heptofuranouridine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-[2-(methylamino)-2-oxoethyl]-3′-O-(phenylmethyl)-β-D-allo-heptofuranoadenosine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-3′-O-(phenylmethyl)-β-D-allo-heptofuranoadenosine

[P(R)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-methyl-3′-O-(phenylmethyl)-β-D-allo-heptofuranoadenosine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-[2-(methylamino)-2-oxoethyl]-3′-O-(phenylmethyl)-β-D-allo-heptofuranocytidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-(2-methoxyethyl)-3′-O-(phenylmethyl)-β-D-allo-heptofuranocytidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-methyl-3′-O-(phenylmethyl)-β-D-allo-heptofuranocytidine

[P(S)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]thymidylyl-(3′→5′-7′)-6′-deoxy-2′-O-[2-(methylamino)-2-oxoethyl]-3′-O-(phenylmethyl)-β-D-allo-heptofuranoguanosine