Thymidine, 3′-O-[(diethoxyphosphinyl)methyl]-5′-O-[(4-methoxyphenyl)diphenylmethyl]-

Thymidine, 3′-O-[(diethoxyphosphinyl)methyl]-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Phosphonic acid, [[3-[2-deoxy-3-O-[(diethoxyphosphinyl)methyl]-5-O-[(4-methoxyphenyl)diphenylmethyl]-α-D-erythro-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinyl]methyl]-, diethyl ester

Phosphonic acid, [[3-[2-deoxy-3-O-[(diethoxyphosphinyl)methyl]-5-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinyl]methyl]-, diethyl ester

Phosphonic acid, [[3-[2-deoxy-5-O-[(4-methoxyphenyl)diphenylmethyl]-α-D-erythro-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinyl]methyl]-, diethyl ester

Phosphonic acid, [[3-[2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinyl]methyl]-, diethyl ester

7-(3-Aminophenyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-5-phenoxy-1-(2,3,5-tri-O-benzoyl-α-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

7-(3-Bromophenyl)-5-(2-furanyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-1-(2,3,5-tri-O-benzoyl-α-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

7-(2-Fluorophenyl)-5-(2-furanyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-1-(2,3,5-tri-O-benzoyl-α-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

5-(2-Furanyl)-3,4-dihydro-7-(2-hydroxyphenyl)-4-imino-3-(2-methoxyphenyl)-1-(2,3,5-tri-O-benzoyl-α-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

7-(3-Aminophenyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-5-phenoxy-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

7-(3-Bromophenyl)-5-(2-furanyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

7-(2-Fluorophenyl)-5-(2-furanyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

5-(2-Furanyl)-3,4-dihydro-7-(2-hydroxyphenyl)-4-imino-3-(2-methoxyphenyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

5-(2-Furanyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-7-(4-methylphenyl)-1-(2,3,5-tri-O-benzoyl-α-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

5-(2-Furanyl)-3,4-dihydro-4-imino-3-(2-methoxyphenyl)-7-(4-methylphenyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3-d]pyrimidine-2(1H)-thione

Adenosine, N-benzoyl-2′-O-[2,3-di-O-acetyl-5-O-[bis[2-(4-nitrophenyl)ethoxy]phosphinyl]-β-D-ribofuranosyl]-

Adenosine, N-benzoyl-2′-O-[2,3-di-O-acetyl-5-O-[bis[2-(4-nitrophenyl)ethoxy]phosphinyl]-β-D-ribofuranosyl]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, N-benzoyl-2′-O-(2,3-di-O-acetyl-β-D-ribofuranosyl)-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine, N-benzoyl-2′-O-(2,3-di-O-acetyl-β-D-ribofuranosyl)-, 3′,5′-diacetate