2(1H)-Pyrimidinone, 4-amino-1-[2,3-O-(1-imino-2-propene-1,3-diyl)-α-D-ribofuranosyl]-

3(2H)-Pyridazinone, 5-amino-2-[2-S-(phenylmethyl)-2-thio-β-D-ribofuranosyl]-

5-Amino-2-(2-azido-2-deoxy-β-D-ribofuranosyl)-3(2H)-pyridazinone

5-Amino-2-β-D-arabinofuranosyl-3(2H)-pyridazinone

7,10-Epoxy-3H,6H-pyridazino[6,1-b][1,3]oxazocin-3-one, 7,8,9,10-tetrahydro-8,9-dihydroxy-, [7R-(7α,8α,9α,10α)]-

4,12-Epoxy-5H,8H-1,3-dioxolo[4,5-e]pyridazino[6,1-b][1,3]oxazocin-8-one, 3a,4,12,12a-tetrahydro-2,2-dimethyl-, [3aR-(3aα,12α,12aα)]-

3(2H)-Pyridazinone, 2-[2,3-O-(1-methylethylidene)-5-O-[(4-methylphenyl)sulfonyl]-β-D-ribofuranosyl]-5-[[(4-methylphenyl)sulfonyl]oxy]-

3(2H)-Pyridazinone, 2-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-[[(4-methylphenyl)sulfonyl]oxy]-

3(2H)-Pyridazinone, 5-hydroxy-2-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-

2-β-D-Arabinofuranosyl-5-hydroxy-3(2H)-pyridazinone

6H-Furo[2′,3′:4,5]oxazolo[3,2-b]pyridazin-6-one, 2,3,3a,9a-tetrahydro-3-hydroxy-2-(hydroxymethyl)-, [2R-(2α,3β,3aβ,9aβ)]-

6-Amino-1-β-D-arabinofuranosyl-4(1H)-pyridazinone

Adenosine 5′-(trihydrogen diphosphate), 8-methyl-

Adenosine 5′-(trihydrogen diphosphate) P′-anhydride with N-[17-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-13-oxo-3,6,9-trioxa-12-azaheptadec-1-yl]phosphoramidic acid

Adenosine, N-(4-acetylphenyl)-2-amino-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-

Coenzyme A, S-[12-[(4-azido-2-nitrophenyl)amino]dodecanoate]

Adenosine, 7,8-dihydro-8-oxo-, 5′-[[(2S)-2-pyrrolidinylcarbonyl]sulfamate]

Adenosine, 7,8-dihydro-2′,3′-O-(1-methylethylidene)-8-oxo-, 5′-[N-[[(2S)-1-[(1,1-dimethylethoxy)carbonyl]-2-pyrrolidinyl]carbonyl]sulfamate]

Adenosine, 7,8-dihydro-8-oxo-, 5′-sulfamate

Adenosine, 7,8-dihydro-2′,3′-O-(1-methylethylidene)-8-oxo-, 5′-sulfamate