3-Pyridinecarboxamide, 1-[2,3-di-O-acetyl-5-O-[4-[(1R)-1-(carboxymethyl)-2-(trimethylammonio)ethoxy]-1,4-dioxobutyl]-β-D-ribofuranosyl]-, inner salt

3-Pyridinecarboxamide, 1-[5-O-[4-[(1R)-1-(carboxymethyl)-2-(trimethylammonio)ethoxy]-1,4-dioxobutyl]-β-D-ribofuranosyl]-, inner salt

1,4-Dihydro-1-[5-O-(4-methoxy-1,4-dioxobutyl)-β-D-ribofuranosyl]-3-pyridinecarboxamide

1-[5-O-(3-Carboxy-1-oxopropyl)-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxamide

L-Valine, 5′-ester with 1,4-dihydro-1-β-D-ribofuranosyl-3-pyridinecarboxamide

1-[5-O-[Bis[[(1S)-2-methoxy-1-methyl-2-oxoethyl]amino]phosphinyl]-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxylic acid

L-Alanine, N,N′-phosphinicobis-, 1,1′-dimethyl ester, 5′-ester with 1-[2,3-bis(1-oxopropyl)-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxamide

L-Alanine, N-(hydroxyphenoxyphosphinyl)-, 1-methylethyl ester, 5′-ester with 1-[2,3-bis(1-oxopropyl)-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxamide

1,4-Dihydro-1-[5-O-[[[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethyl]amino]phenoxyphosphinyl]-2,3-bis-O-(1-oxopropyl)-β-D-ribofuranosyl]-3-pyridinecarboxylic acid

1-[5-O-[Bis[[(1S)-2-methoxy-1-methyl-2-oxoethyl]amino]phosphinyl]-2,3-bis-O-(1-oxopropyl)-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxylic acid

1,4-Dihydro-1-[5-O-[[[(1S)-1-methyl-2-(1-methylethoxy)-2-oxoethyl]amino]phenoxyphosphinyl]-β-D-ribofuranosyl]-3-pyridinecarboxylic acid

L-Alanine, N,N′-phosphinicobis-, 1,1′-dimethyl ester, 5′-ester with 1,4-dihydro-1-β-D-ribofuranosyl-3-pyridinecarboxamide

1-[2,3-Bis-O-(1-oxopropyl)-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxamide

1-[2,3-Bis-O-(1-oxopropyl)-β-D-ribofuranosyl]-1,4-dihydro-3-pyridinecarboxylic acid

1-Propanaminium, 3-carboxy-2-[[(1,4-dihydro-1-β-D-ribofuranosyl-3-pyridinyl)carbonyl]oxy]-N,N,N-trimethyl-, inner salt