Methyl 2-[[(5R,6R,8R,9R)-8-(3,4-dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-6-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]amino]-2-oxoacetate

Methyl 2-[[(5R,6R,8R,9R)-6-[(acetyloxy)methyl]-8-(3,4-dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]amino]-2-oxoacetate

Methyl 2-[[(5R,6R,8R,9R)-8-(3,4-dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-6-[[[tris(1-methylethyl)silyl]oxy]methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]amino]-2-oxoacetate

Methyl 2-[[(5R,6R,8R,9R)-8-(3,4-dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[dimethyl(1,1,2-trimethylpropyl)silyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]amino]-2-oxoacetate

1-[(5R,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-6-[[[tris(1-methylethyl)silyl]oxy]methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[dimethyl(1,1,2-trimethylpropyl)silyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

N-[(5aR,7R,8R,8aR)-7-(3,4-Dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-8-[[(1,1-dimethylethyl)dimethylsilyl]oxy]tetrahydro-2,2-dioxidofuro[3′,2′:3,4]furo[2,3-d]-1,2-oxathiol-3a(3H)-yl]-2,2,2-trifluoroacetamide

N-[(5R,6R,8R,9R)-8-(3,4-Dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-(hydroxymethyl)-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]-2,2,2-trifluoroacetamide

N-[(5R,6R,8R,9R)-8-(3,4-Dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]-2,2,2-trifluoroacetamide

1-[(5R,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2,2-dioxido-3-(2,2,2-trifluoroacetyl)-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

N-[(5R,6R,8R,9R)-8-(3,4-Dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]-α-oxo-1-azetidineacetamide

Methyl 2-[[(5R,6R,8R,9R)-8-(3,4-dihydro-3,5-dimethyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-(hydroxymethyl)-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-4-yl]amino]-2-oxoacetate

4,5-Dihydro-6-[(phenylmethyl)thio]-2-β-D-ribofuranosyl-5-thioxo-1,2,4-triazin-3(2H)-one

4,5-Dihydro-6-(methylthio)-2-β-D-ribofuranosyl-5-thioxo-1,2,4-triazin-3(2H)-one

Thymidine, 2′-deoxy-P-[4-[[[[4-(dimethylamino)phenyl]methylene]amino]oxy]butyl]guanylyl-(3′→5′)-

Thymidine, 2′-deoxy-P-[4-[[(1-methylethylidene)amino]oxy]butyl]guanylyl-(3′→5′)-

Thymidine, 2′-deoxy-P-[4-[[[[4-(dimethylamino)phenyl]methylene]amino]oxy]butyl]adenylyl-(3′→5′)-

Thymidine, 2′-deoxy-P-[4-[[(1-methylethylidene)amino]oxy]butyl]adenylyl-(3′→5′)-

Cytidine, P-[4-[[[[4-(dimethylamino)phenyl]methylene]amino]oxy]butyl]thymidylyl-(3′→5′)-2′-deoxy-

Cytidine, P-[4-[[(1-methylethylidene)amino]oxy]butyl]thymidylyl-(3′→5′)-2′-deoxy-