Abstract
A method was developed for the synthesis of pyrano[4,3-b]thieno[3,2-e]pyridine derivatives based on the reaction of 3-amino-7-ethyl-7-methyl-7,8-dihydro-5H-pyrano[4,3-b]thieno[3,2-e]pyridine-2-carboxylic acid ethyl ester with chloroacetic acid chloride, triethyl orthoformate, hydrazine hydrate, and also phenyl chloroformate. The synthesis of various new representatives of pyrano[2″,3″:5′,6′]pyrido[3′,2′:4,5]thieno[3,2-dl-pyrimidine series was carried out.
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Russian Text © The Author(s), 2019, published in Zhurnal Obshchei Khimii, 2019, Vol. 89, No. 6, pp. 963–968.
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Dabaeva, V.V., Bagdasaryan, M.R., Paronikyan, E.G. et al. Synthesis of New Fused Pirano[4,3-b]pyridine Derivatives. Russ J Gen Chem 89, 1177–1182 (2019). https://doi.org/10.1134/S1070363219060124
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DOI: https://doi.org/10.1134/S1070363219060124