Derivatives of Condensed Thienopyrimidimines. 13. Synthesis and Structure of Pyrano[4',3':4,5]thieno[3,2-e]-1,2,4-triazolo[2,3-c]pyrimidines |
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Authors: | A. Sh. Oganisyan A. S. Noravyan A. A. Karapetyan M. S. Aleksanyan Yu. T. Struchkov |
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Affiliation: | (1) Center for Investigation of Molecular Structure, Armenian National Academy of Sciences, Erevan, 375014;(2) Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 117813, Russia |
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Abstract: | Methods for the synthesis of 5-substituted 10,10-dimethyl-10,11-dihydro-8H-pyrano[4',3':4,5]thieno[3,2-e]-1,2,4-triazolo[2,3-c]pyrimidines have been developed. An X-ray crystallographic study of 5-(2-ethoxymethylhydrazino)-10,10-dimethyl-10,11-dihydro-8H-pyrano[4',3':4,5]thieno[3,2-e]-1,2,4-triazolo[2,3-c]pyrimidine has been carried out. |
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Keywords: | dithioxopyrimidine pyranothienopyrimidine pyranothienotriazolopyrimidines |
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