An efficient synthesis of functionalized fused pyrimidine mono-N-oxide derivatives from the nitroaromatic compounds (involving the Vicarious Nucleophilic Substitution of Hydrogen and cyclocondensation of aromatic orthoaminooximes with orthoesters) is described.
Ostrowski, S., Polish Journal of Chemistry, 1994, vol. 68, # 11, p. 2237 - 2248
作者:Ostrowski, S.
DOI:——
日期:——
An Attempt to Assign the NMR Spectra in 7-Methyl-and 7-Benzyl-substituted 7H-Purine 1-Oxides Using the ACD/Labs Software Package
作者:Stanisław Ostrowski
DOI:10.3390/80900649
日期:——
Commercially available 4-nitroimidazole can be transformed in a few simple steps into 4-aminoimidazoyl-5-carboximes, from which the respective purine mono-1-oxides may be synthesized. The N→O functionality in these products significantly changes the electron density in the purine skeleton and consequently, the determination of the 1H- and 13C-NMR spectra of these simple compounds is somewhat troublesome. The use of the ACD/Labs software package for this purpose is discussed.