Synthesis of Derivatives of 4,6-Dioxo-1,4,6,7,8,9-hexahydropyrimido[4,5-<Emphasis Type="Italic">b</Emphasis>][1,6]naphthyridines |
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Authors: | A B Deyanov M E Konshin |
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Institution: | (1) Perm State Pharmaceutical Academy, Perm, 614990, Russia |
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Abstract: | It has been shown that 1-aryl-8-(4-bromophenyl)-4,6-dioxo-2H(phenyl)-7-phenyl-1,4,6,7,8,9-hexahydropyrimido4,5-b]1,6]naphthyridines are formed on heating anilides of 1-aryl-7-(4-bromostyryl)-4-oxo-1,4-dihydropyrido2,3-d]pyrimidine-6-carboxylic acids in PPA.__________Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, 597–600, April, 2005. |
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Keywords: | 4 6-dioxo-1 4 6 7 8 9-hexahydropyrimido[4 5-b][1 6]naphthyridines anilides of 4-oxo-1 4-dihydropyrido[2 3-d]pyrimidine-6-carboxylic acids cyclization |
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