Derivatives of Condensed Pyridopyrimidines. 3. Synthesis of Condensed Imidazo[4,5-b]pyridine and also 4-Oxo- and 2,4-Dioxopyrido[2,3-d]pyrimidines |
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Authors: | V. V. Dabaeva S. G. Pilosyan M. R. Bagdasaryan V. N. Madakyan A. S. Novaryan |
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Affiliation: | (1) A. L. Mndzhoyan Institute of Fine Organic Chemistry, Armenian National Academy of Sciences, Erevan, 375014, Armenia |
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Abstract: | A convient methods has been developed for the synthesis of condensed imidazo[4,5-b]pyridine and also 4-oxo- and 2,4-dioxopyrido[2,3-d]pyrimidines. The optimum conditions for the Curtius rearrangement of 2-amino-3-azidocarbonyl derivative of pyrano[4,3-b]pyridine have been established. |
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Keywords: | pyranoimidazopyridine pyranopyridine pyridopyrimidine |
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