Abstract
New 7-amino, 7-azido, and 7-alkylsulfanyl derivatives have been synthesized from 7-chloro-9-(methylsulfanyl)-4-(propan-2-yl)-2,3-dihydro-1H-cyclopenta[4′,5′]pyrido[3′,2′:4,5]thieno[3,2-d]pyrimidine. 7-Azido-9-(methylsulfanyl)-4-(propan-2-yl)-2,3-dihydro-1H-cyclopenta[4′,5′]pyrido[3′,2′:4,5]thieno[3,2-d]-pyrimidine has been found to exist in solution as a mixture of azido and tetrazole tautomers, whereas only its tetrazole form is present in the crystalline state.
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Russian Text © The Author(s), 2019, published in Zhurnal Organicheskoi Khimii, 2019, Vol. 55, No. 12, pp. 1843–1849.
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Sirakanyan, S.N., Hakobyan, E.K. & Hovakimyan, A.A. Synthesis and Azido-Tetrazole Tautomerism of New Methylsulfanyl Thieno[3,2-d]pyrimidine Derivatives. Russ J Org Chem 55, 1840–1846 (2019). https://doi.org/10.1134/S1070428019120054
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DOI: https://doi.org/10.1134/S1070428019120054