5-(5-O-Acetyl-β-D-ribofuranosyl)-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione

5-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-3,4-dihydro-N-methyl-2,4-dioxo-1(2H)-pyrimidineacetamide

5-(3-O-Acetyl-2-chloro-2-deoxy-β-D-ribofuranosyl)-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione

1,3-Dimethyl-5-[2-O-(methylsulfonyl)-β-Dribofuranosyl]-2,4(1H,3H)-pyrimidinedione

N-(2-Aminoethyl)-3-(3,4-dihydro-2,4-dioxo-5-β-D-ribofuranosyl-1(2H)-pyrimidinyl)-2-propenamide

5-[2-Deoxy-5-O-[tris(1-methylethyl)silyl]-β-Derythro-pentofuranosyl]-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione

PhenylmethylN-[2-[3,4-dihydro-5-[2-O-(2-methoxyethyl)-β-D-ribofuranosyl]-2,4-dioxo-1(2H)-pyrimidinyl]ethyl]carbamate

5-[2-Deoxy-5-O-[tris(1-methylethyl)silyl]-β-Dthreo-pentofuranosyl]-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione

5-[(2R,4S)-4-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]tetrahydro-5,5-bis(hydroxymethyl)-2-furanyl]-3,4-dihydro-N-methyl-2,4-dioxo-1(2H)-pyrimidineacetamide

5-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-β-Dribofuranosyl]-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione

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

2,4(1H,3H)-Pyrimidinedione,5-[5-O-(methoxymethyl)-2,3-O-(1-methylethylidene)-α-Dlyxofuranosyl]-1,3-dimethyl-

5-[5-O-(Methoxymethyl)-2,3-O-(1-methylethylidene)-α-D-ribofuranosyl]-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione

1-[(Phenylmethoxy)methyl]-5-[3,5-O-[[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]bis(methylene)]-β-D-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione,5-[2-deoxy-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranosyl]-3-methyl-

6-(Aminomethyl)-5-[5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-1-methyl-2,4(1H,3H)-pyrimidinedione

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-(2-methoxyethyl)-β-D-ribofuranosyl]-1-[(phenylmethoxy)methyl]-2,4(1H,3H)-pyrimidinedione

5-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-3,4-dihydro-N-methyl-2,4-dioxo-1(2H)-pyrimidineacetamide

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

Ethyl5-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidineacetate