A novel synthesis of N-substituted amino-4-methylsulfanyl-2-pyridones and deazapurine analogues via the reaction of ketene dithioacetals with substituted semi- and thio-semicarbazide derivatives is reported and the synthetic potential of the method is demonstrated.
G. H. Elgemeie, A. H. Elghandour, A. M. Elzanate and W. A. Masoud, J. Chem. Res. (S), 1998, 164 DOI: 10.1039/A701889D
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