Abstract
1,3-Dimethyl-2,4,5-trioxo-7-amino-8H-pyrido[2,3-d]pyrimidine has been brominated, chlorosulfonated, treated with potassium nitrite in acidic medium, and with the Vilsmeier reagent. Acylation and alkylation of 1,3-dimethyl-2,4,5-trioxo-6-bromo-7-aminopyrido[2,3-d]pyrimidine is also discussed.
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O. A. Burova, N. M. Smirnova, and T. S. Safonova, Khim. Geterotsikl. Soedin. (in press) (1990).
K. Hitota, Y. Kitade, H. Sajioki, and Y. Maki, Synthesis, No. 7, 589 (1984).
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For Communication 1, see [1].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 662–666, May, 1990.
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Burova, O.A., Bystryakova, I.D., Smirnova, N.M. et al. Pyrido[2,3-d]pyrimidines. 2. Reactions of 2,4,5-trioxo-7-amino-8H-pyrido[2,3-d]pyrimidines with electrophilic agents. Chem Heterocycl Compd 26, 561–564 (1990). https://doi.org/10.1007/BF00487434
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DOI: https://doi.org/10.1007/BF00487434