| Abstract: | The reaction of hydroxylamine and O-methylhydroxylamine with cytidine 5 -di- and triphosphates gave nucleoside di- and triphosphates containing hydroxylamine and O-methylhydroxylamine residues in the heterocyclic ring. At low temperatures, high pH values, and high hydroxylamine concentrations, the chief products are 4,6-dihydroxylamino-5,6-dihydro-2(1H)-pyrimidinone derivatives, while 4-hydroxylamino-2(1H)-pyrimidinone derivatives are primarily formed when the temperature is raised and the pH and hydroxylamine concentration are lowered.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 700–704, May, 1972. |
