DOROXOV, V. A.;GORDEEV, M. F.;KOMKOV, A. V.;BOGDANOV, V. S., IZV. AN CCCP. CEP. XIM.,(1990) N, S. 145-149
作者:DOROXOV, V. A.、GORDEEV, M. F.、KOMKOV, A. V.、BOGDANOV, V. S.
DOI:——
日期:——
Komkow A. W., Ugrak B. I., Bogdanow W. S., Dorokhow W A., Isw. AN. Ser. khim, (1994) N 8, S 1469-1474
作者:Komkow A. W., Ugrak B. I., Bogdanow W. S., Dorokhow W A.
DOI:——
日期:——
Efficient methods for the synthesis of pyrido[2,3-d]pyrimidin-5-ones from 4-amino-5-acetylpyrimidines
作者:A. V. Komkov、B. I. Ugrak、V. S. Bogdanov、V. A. Dorokhov
DOI:10.1007/bf00703702
日期:1994.8
New methods for annelation of a pyridine ring to a pyrimidine ring were suggested. Substituted 8H-pyrido[2,3-d]pyrimidin-5-ones (8a-f) were synthesized by the interaction of 2,6-disubstituted 4-amino-5-acetylpyrimidines (1-4) with formamide or acetamide acetals followed by cyclization under the action of sodium methoxide in methanol. 2,4-Disubstituted 7-phenyl-8H-pyrido[2,3-d]pyrimidin-5-ones (11a-c) were prepared by the reaction of 2,6-disubstituted 5-acetyl-4-benzoylaminopyrimidines (10a-c) with MeONa in boiling BuOH.
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作者:A. V. Komkov、V. A. Dorokhov
DOI:10.1023/a:1021304619076
日期:——
A method for the synthesis of methyl and ethyl 2-R-1-4-R-2-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-7-carboxylates was proposed. The method is based on condensation of 2-R-1-6-R-2-5-acetyl-4-aminopyrimidines with ethyl oxalate in the presence of MeONa or EtONa. Products of the Friedlander self-condensation of the starting pyrimidines were also obtained.
Synthesis of 4-amino-5-alkoxycarbonyl(acyl)pyrimidines from ?-dicarbonyl compounds and N-cyanoamidines
作者:V. A. Dorokhov、M. F. Gordeev、A. V. Komkov、V. S. Bogdanov