Abstract
Novel condensed pyrano[4',3':4,5]thieno[3,2-e]triazolo[3,4-b]pyrimidine derivatives have been synthesized from 2-amino-3-carbethoxy-5,5-dimethyl-4,5-dihydro-7H-thieno[2,3-c]pyran.
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Oganisyan, A.S., Noravyan, A.S., Karapetyan, A.A. et al. Condensed Thienopyrimidines. 19. Study of the Heterocyclization of 2-Hydrazino-6,6-dimethyl-5,6-dihydro-8H-pyranothieno[2,3-d]pyrimidin-4-one. Chemistry of Heterocyclic Compounds 40, 79–83 (2004). https://doi.org/10.1023/B:COHC.0000023772.87295.a9
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DOI: https://doi.org/10.1023/B:COHC.0000023772.87295.a9