(3′S,3aR,6R,6aR)-6-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-6,6a-dihydro-2,2-dimethylspiro[furo[3,4-d]-1,3-dioxole-4(3aH),3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

(3′R,6aR,9aS)-6,6a,9,9a-Tetrahydro-1′,1′-dimethyl-2,2,4,4-tetrakis(1-methylethyl)spiro[8H-furo[3,2-f]-1,3,5,2,4-trioxadisilocin-8,3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

(1′R,3′S,6aR,9aS)-6,6a,9,9a-Tetrahydro-1′-methyl-2,2,4,4-tetrakis(1-methylethyl)spiro[8H-furo[3,2-f]-1,3,5,2,4-trioxadisilocin-8,3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

Uridine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-[(1S)-1-hydroxyethyl]-

Uridine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-[(1R)-1-hydroxyethyl]-

Uridine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′,3′-O-(1-methylethylidene)-6-[(1S)-1-[(2S)-3,3,3-trifluoro-2-methoxy-1-oxo-2-phenylpropoxy]ethyl]-

Uridine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′,3′-O-(1-methylethylidene)-6-[(1R)-1-[(2S)-3,3,3-trifluoro-2-methoxy-1-oxo-2-phenylpropoxy]ethyl]-

Uridine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-6-[(1S)-1-[[(2R)-hydroxyphenylacetyl]oxy]ethyl]-2′,3′-O-(1-methylethylidene)-

Uridine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-6-[(1R)-1-[[(2R)-hydroxyphenylacetyl]oxy]ethyl]-2′,3′-O-(1-methylethylidene)-

(2S,3R,4R,5R)-3,4-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-4,5-dihydro-1′,1′-dimethylspiro[furan-2(3H),3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

(1′S,2R,3R,4R,5R)-3,4-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-4,5-dihydro-1′-methylspiro[furan-2(3H),3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

(1′R,2R,3R,4R,5R)-3,4-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-4,5-dihydro-1′-methylspiro[furan-2(3H),3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

(3′S,3aR,6R,6aR)-6-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-6,6a-dihydro-1′,1′,2,2-tetramethylspiro[furo[3,4-d]-1,3-dioxole-4(3aH),3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

(1′S,3′R,6aR,9aS)-6,6a,9,9a-Tetrahydro-1′-methyl-2,2,4,4-tetrakis(1-methylethyl)spiro[8H-furo[3,2-f]-1,3,5,2,4-trioxadisilocin-8,3′-[3H]oxazolo[3,4-c]pyrimidine]-5′,7′(1′H,6′H)-dione

Uridine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-(1-hydroxy-1-methylethyl)-

Uridine, 6-acetyl-2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-

Uridine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-(1-hydroxyethyl)-

Uridine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-formyl-

Uridine, 6-(1,2-dihydroxyethyl)-2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-

Uridine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-6-ethenyl-