(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

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

(2′R)-2-Amino-2′-deoxy-2′-fluoro-N,2′-dimethyl-N-[(pentyloxy)carbonyl]adenosine

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

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-amine

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

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

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

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