SCHEDULED MAINTENANCE
Treatment of methyl 5-amino-1,(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)imidazole-4-carboxylate with sodium nitrite in the presence of 11N nitric acid at –20 °C yielded methyl 1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-2-oxo-Δ4-imidazoline-4-carboxylate.
P. C. Srivastava, R. J. Rousseau and R. K. Robins, J. Chem. Soc., Chem. Commun., 1977, 151 DOI: 10.1039/C39770000151
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