Tert-butyl 5-amino-1H-pyrazole-1-carboxylate

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[3-[[(1,1-dimethylethoxy)carbonyl]amino]propyl]-β-D-ribofuranosyl]-4,6-difluoro-1H-benzimidazole

5-[3-[[[3',6'-Bis[[(1,1-dimethylethoxy)carbonyl]oxy]-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-6-yl]carbonyl]amino]propyl]-3'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

5-(3-Aminopropyl)-3'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

(3'R)-3'-Deoxy-3'-fluoro-3'-methylcytidine

5-[3-(3-Aminopropoxy)-1-propyn-1-yl]-2',3'-dideoxycytidine

5'-[4-[[[2-(Acetylamino)-2-deoxy-α-D-galactopyranosyl]oxy]methyl]-1H-1,2,3-triazol-1-yl]-5'-deoxyuridine

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-β-L-erythro-pentofuranosyl]-6-nitro-1H-benzimidazole

1-(2-Deoxy-β-L-erythro-pentofuranosyl)-5-nitro-1H-benzimidazole

5-[3-[Bis[[1-(7-hydroxy-2-oxo-2H-1-benzopyran-3-yl)-1H-1,2,3-triazol-4-yl]methyl]amino]-1-propyn-1-yl]-2'-deoxyuridine

(2'R)-2'-Deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoro-2'-methylcytidine

5'-O-[(1,1-Dimethylethyl)dimethylsilyl]-3'-O-methyladenosine

5'-S-[(3S)-1-Methyl-3-pyrrolidinyl]-2',3'-O-(1-methylethylidene)-5'-thioadenosine

5'-S-4-Piperidinyl-5'-thioadenosine

1-[2,3-Di-O-acetyl-5-S-[3-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4-methoxy-4-oxobutyl]-5-thio-β-D-ribofuranosyl]-1H-benzimidazole

5'-S-(2-Fluorophenyl)-N-[3-(hydroxymethyl)bicyclo[2.2.1]hept-2-yl]-5'-thioadenosine

3-Chlorophenoxyacetyl chloride

4-[3-(4-Chloro-Phenyl)-3-Oxo-Propionyl]-Piperidine-1-Carboxylic Acid Tert-Butyl Ester

3,3-Dimethyl-6-nitroindolin-2-one

2-Amino-6,7-dihydro-4H-thiazolo[4,5-c]pyridine-5-carboxylic acid tert-butyl ester

2-Amino-7-bromo-9,9-dimethyl fluorene