Adenosine, 2-chloro-5′-O-[1,1-dicarboxy-2-[4-(tetrahydro-2-oxo-1(2H)-pyrimidinyl)phenyl]ethyl]-N-[(1,1-dimethylethoxy)carbonyl]-3′-C-ethynyl-

Adenosine, 2-chloro-5′-O-[1-[[4-[[[(3-chloropropyl)amino]carbonyl]amino]phenyl]methyl]-2-ethoxy-1-(ethoxycarbonyl)-2-oxoethyl]-N-[(1,1-dimethylethoxy)carbonyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 5′-O-[1-[(4-aminophenyl)methyl]-2-ethoxy-1-(ethoxycarbonyl)-2-oxoethyl]-2-chloro-N-[(1,1-dimethylethoxy)carbonyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-1-[(4-nitrophenyl)methyl]-2-oxoethyl]-N-[(1,1-dimethylethoxy)carbonyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-1-(3-furanylmethyl)-2-oxoethyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(4-pyridinylmethyl)ethyl]-3′-C-ethynyl-, 2′,3′-diacetate

Uridine, 5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-5′-O-[1-[(2-chloro-4-pyridinyl)methyl]-2-ethoxy-1-(ethoxycarbonyl)-2-oxoethyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-5′-O-[1-[(2-chloro-4-pyridinyl)methyl]-2-ethoxy-1-(ethoxycarbonyl)-2-oxoethyl]-N,N-bis[(1,1-dimethylethoxy)carbonyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-3′-C-(2-cyclopropylethynyl)-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-, 2′,3′-diacetate

Adenosine, 2-chloro-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-3′-C-1-propyn-1-yl-, 2′,3′-diacetate

9H-Purin-6-amine, 2-chloro-9-[3-deoxy-5-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-3-ethynyl-β-D-xylofuranosyl]-

Carbamic acid, N-[2-chloro-9-[3-deoxy-2-O-[(1,1-dimethylethoxy)carbonyl]-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-ethynyl-β-D-xylofuranosyl]-9H-purin-6-yl]-N-[(1,1-dimethylethoxy)carbonyl]-, 1,1-dimethylethyl ester

Carbamic acid, N-[2-chloro-9-[3-deoxy-2-O-[(1,1-dimethylethoxy)carbonyl]-3-ethynyl-β-D-xylofuranosyl]-9H-purin-6-yl]-N-[(1,1-dimethylethoxy)carbonyl]-, 1,1-dimethylethyl ester

Carbamic acid, N-[2-chloro-9-[3-deoxy-2-O-[(1,1-dimethylethoxy)carbonyl]-5-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-3-ethynyl-β-D-xylofuranosyl]-9H-purin-6-yl]-N-[(1,1-dimethylethoxy)carbonyl]-, 1,1-dimethylethyl ester

Carbamic acid, N-[2-chloro-9-[3-deoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-3-ethynyl-β-D-xylofuranosyl]-9H-purin-6-yl]-, 1,1-dimethylethyl ester

Adenosine, 2-chloro-N-[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-3′-C-ethynyl-, cyclic 2′,3′-carbonothioate

Adenosine, 2-chloro-N-[(1,1-dimethylethoxy)carbonyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-3′-C-ethynyl-

Adenosine, 2-chloro-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-3′-C-ethynyl-, 2′,3′-diacetate

Adenosine, 2-chloro-N,N-bis[(1,1-dimethylethoxy)carbonyl]-5′-O-[2-ethoxy-1-(ethoxycarbonyl)-2-oxo-1-(phenylmethyl)ethyl]-3′-C-ethynyl-, 2′,3′-diacetate