N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-2,7-dihydro-2-oxo-1H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-(hydroxyphosphinyl)-β-D-erythro-pentofuranosyl]-2,7-dihydro-2-oxo-1H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide

Carbamic acid, diphenyl-, 7-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-4-[(2-methyl-1-oxopropyl)amino]-7H-pyrrolo[2,3-d]pyrimidin-2-yl ester

Carbamic acid, diphenyl-, 7-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-(hydroxyphosphinyl)-β-D-erythro-pentofuranosyl]-4-[(2-methyl-1-oxopropyl)amino]-7H-pyrrolo[2,3-d]pyrimidin-2-yl ester

rel-1-[(5R,10S,11R)-2,3-Dichloro-10,11-dihydro-1-methyl-5,10-diphenyl-5,10-epoxy-5H-pyrrolo[1,2-b][2]benzazepin-11-yl]-1-propanone

(2S,3S,3aS,10aR)-2-(Dimethoxymethyl)-2,3,3a,10a-tetrahydro-3,5-dihydroxyfuro[3,2-b]pyrimido[1,6-d][1,4]oxazine-7,9(5H,8H)-dione

(2S,3S,3aS,4aS,9aS)-4a-(Dihydroxymethyl)-2-(dimethoxymethyl)hexahydro-3-hydroxy-6H-furo[2′,3′:4,5]oxazolo[3,2-c]pyrimidine-6,8(7H)-dione

6H-Furo[2′,3′:4,5]oxazolo[3,2-c]pyrimidine-6,8(7H)-dione, 2-(dimethoxymethyl)-4a-(1,3-diphenyl-2-imidazolidinyl)hexahydro-3-hydroxy-, [2S-(2α,3β,3aβ,4aβ,9aα)]-

(2S,3S,3aS,9aR)-2-(Dimethoxymethyl)-8-(1,3-diphenyl-2-imidazolidinyl)-2,3,3a,9a-tetrahydro-3-hydroxy-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one

Uridine, 6-(1,3-diphenyl-2-imidazolidinyl)-5′-C-methoxy-5′-O-methyl-

5,2-(Epoxymethano)furo[3,2-b]pyrimido[1,6-d][1,4]oxazine-7,9(5H,8H)-dione, 2,3,3a,10a-tetrahydro-3-hydroxy-12-methoxy-, (2S,3S,3aS,5R,10aR)-[partial]-

Uridine, 2′-chloro-2′-deoxy-2′-fluoro-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3′-acetate, (2S)-

N-[(2′R)-2-Amino-2′-deoxy-2′-fluoro-2′-methyl-P-phenyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-N,N,2′-trimethyl-2-[[(pentyloxy)carbonyl]amino]-P-phenyl-5′-adenylyl]-L-alanine 1-methylethyl ester

(2′R)-2′-Deoxy-2′-fluoro-N,N,2′-trimethyl-2-[[(pentyloxy)carbonyl]amino]adenosine

(2′R)-2′-Deoxy-2′-fluoro-N,N,2′-trimethyl-2-[[(pentyloxy)carbonyl]amino]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]adenosine

N-[[P(S),2′R]-2′-Deoxy-2′-fluoro-N,2′-dimethyl-2-[[(pentyloxy)carbonyl]amino]-P-phenyl-5′-adenylyl]-L-alanine 1-methylethyl ester

(2′R)-2′-Deoxy-2′-fluoro-N,2′-dimethyl-2-[[(pentyloxy)carbonyl]amino]adenosine

(2′R)-2′-Deoxy-2′-fluoro-N,2′-dimethyl-2-[[(pentyloxy)carbonyl]amino]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]adenosine

Pentyl N-[6-chloro-9-[(2R)-2-deoxy-2-fluoro-2-methyl-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranosyl]-9H-purin-2-yl]carbamate