E. Paronikyan, A. S. Harutyunyan, R. Paronikyan
Mar 1, 2020
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Journal
Russian Journal of Organic Chemistry
Abstract
Conditions for the Gewald synthesis of 2-amino-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyrans from 2,2-dimethyltetrahydropyran-4-ones have been optimized, and the yields have been improved. A procedure has been developed for the synthesis of new pyrano[4′,3′:4,5]thieno[2,3-b]pyridines by the Thorpe–Ziegler reaction of thieno[2,3-c]pyrans. Anticonvulsant activity of the synthesized compounds was studied.