Methyl5-[3,5-O-[bis(1,1-dimethylethyl)silylene]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinepropanoate

N-(2-Aminoethyl)-5-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-β-D-ribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinepropanamide

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[(1,1-dimethylethyl)dimethylsilyl]-β-Dribofuranosyl]-3,4-dihydro-N-methyl-2,4-dioxo-1(2H)-pyrimidinepropanamide

PhenylmethylN-[2-[3,4-dihydro-2,4-dioxo-5-[3,5-O-[[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]bis(methylene)]-β-D-ribofuranosyl]-1(2H)-pyrimidinyl]ethyl]carbamate

Propanoicacid,2,2-dimethyl-,[5-[2-O-acetyl-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]methylester

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-Dribofuranosyl]-3,4-dihydro-N-methyl-2,4-dioxo-1(2H)-pyrimidinepropanamide

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidineacetamide

Ethyl3,4-dihydro-2,4-dioxo-5-[2-O-(methylsulfonyl)-3,5-O-[[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]bis(methylene)]-β-Dribofuranosyl]-1(2H)-pyrimidineacetate

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1-[2-(dimethylamino)ethyl]-2,4(1H,3H)-pyrimidinedione

Propanoicacid,2,2-dimethyl-,[3,6-dihydro-2,6-dioxo-5-[3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-2-O-(trimethylsilyl)-β-D-ribofuranosyl]-1(2H)-pyrimidinyl]methylester

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-(2-methoxyethyl)-β-Dribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidineacetamide

Ethyl5-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-Derythro-pentofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidineacetate

N-(2-Aminoethyl)-5-[3,5-O-[bis(1,1-dimethylethyl)silylene]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinepropanamide

2,4(1H,3H)-Pyrimidinedione,5-[2-O-(1H-imidazol-1-ylthioxomethyl)-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-1-methyl-

PhenylmethylN-[2-[3,4-dihydro-2,4-dioxo-5-[2-O-(methylsulfonyl)-3,5-O-[[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]bis(methylene)]-β-D-ribofuranosyl]-1(2H)-pyrimidinyl]ethyl]carbamate

Ethyl5-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-(2-methoxyethyl)-β-D-ribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidineacetate

N-[2-[5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-(2-methoxyethyl)-β-D-ribofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]ethyl]-2,2,2-trifluoroacetamide

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-(2-methoxyethyl)-β-Dribofuranosyl]-3,4-dihydro-N,N-dimethyl-2,4-dioxo-1(2H)-pyrimidineacetamide

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-1-[2-(dimethylamino)ethyl]-2,4(1H,3H)-pyrimidinedione

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-(2-methoxyethyl)-β-Dribofuranosyl]-3,4-dihydro-N-methyl-2,4-dioxo-1(2H)-pyrimidineacetamide