Abstract
2,4-Dioxo-1,2,3,4-tetrahydropyrido [2,3-d]pyrimidines, the structures of which were proved by the PMR and the IR spectra, are formed in the condensation of mono- and di-N-alkyl-5-formyl-6-aminouracils with cyanoacetic acid and its esters, acetoacetic ester, and malonic acid dinitrile.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 834–837, June, 1983.
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Cherdantseva, N.M., Nesterov, V.M. & Safonova, T.S. Synthesis of pyrido [2,3-d]pyrimidines on the basis of 5-formyl-6-aminouracils. Chem Heterocycl Compd 19, 674–677 (1983). https://doi.org/10.1007/BF00523084
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DOI: https://doi.org/10.1007/BF00523084