8-(1,1-Dimethylethyl) 2-methyl (2R,3aR,8aS)-3a-(1,1-dimethyl-2-propen-1-yl)-2,3,3a,8a-tetrahydro-8H-furo[2,3-b]indole-2,8-dicarboxylate

8-(1,1-Dimethylethyl) 2-methyl (2R,3aS,8aR)-2,3,3a,8a-tetrahydro-3a-(phenylseleno)-8H-furo[2,3-b]indole-2,8-dicarboxylate

8-(1,1-Dimethylethyl) 2-methyl (2R,3aR,8aS)-2,3,3a,8a-tetrahydro-3a-(phenylseleno)-8H-furo[2,3-b]indole-2,8-dicarboxylate

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-[[2-[(1R,2R,3S,4R)-2-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-3-butoxy-4-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)cyclopentyl]ethoxy]methylamino]-3′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-[[2-[(1R,2R,3S,4R)-3-butoxy-4-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-2-[[(1,1-dimethylethyl)diphenylsilyl]oxy]cyclopentyl]ethoxy]amino]-3′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-[[2-[(1R,2S,4R)-2-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-4-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)cyclopentyl]ethoxy]methylamino]-3′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-3′-[[2-[(1R,2S,4R)-4-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-2-[[(1,1-dimethylethyl)diphenylsilyl]oxy]cyclopentyl]ethoxy]amino]-

β-D-ribo-Hexofuranouridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylyl(methylimino)-(3′→6′)-5′-deoxy-5-methyl-2′-O-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

β-D-ribo-Hexofuranouridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylimino-(3′→6′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-

1-[6-O-Amino-5-deoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-2-O-methyl-β-D-ribo-hexofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(5-Deoxy-2-O-methyl-β-D-ribo-hexofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylyl(methylimino)-1,2-ethanediyl-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylyl(methylimino)-1,2-ethanediyl-(3′→5′)-5′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylyl(methylimino)-1,2-ethanediyl-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, 3′-de(phosphinicooxy)thymidylyl(methylimino)-1,2-ethanediyl-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-de(phosphinicooxy)thymidylylimino-1,2-ethanediyl-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

β-D-erythro-Hexofuranothymidine, 3′-S-dephosphinico-5′-O-[(4-methoxyphenyl)diphenylmethyl]-3′-thiothymidylyl(methylimino)-(3′→6′)-5′,6′-dideoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

β-D-erythro-Hexofuranothymidine, 3′-S-dephosphinico-5′-O-[(4-methoxyphenyl)diphenylmethyl]-3′-thiothymidylyl(methylimino)-(3′→6′)-5′,6′-dideoxy-

β-D-erythro-Hexofuranothymidine, 3′-S-dephosphinico-5′-O-[(4-methoxyphenyl)diphenylmethyl]-3′-thiothymidylyl(methylimino)-(3′→6′)-5′,6′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

2,4(1H,3H)-Pyrimidinedione, 5-methyl-1-[2,5,6-trideoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-6-(methylamino)-β-D-erythro-hexofuranosyl]-