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Synthesis of pyrido[3′,2′:4,5]thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one derivatives

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Abstract

Some new pyrido[3′,2′:4,5]thieno[2,3-e]-[1,2,4]triazolo[4,3-a] pyrimidin-5(4H)-ones were prepared through heterocyclization of ethyl 3-aminothieno[2,3-b]pyridine-2-carboxylate with phenyl or ethyl isothiocyanate followed by nucleophilic displacement with hydrazine, and finally cyclocondensation with orthoesters.

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Authors and Affiliations

  1. Department of Chemistry, School of Sciences, Islamic Azad University, Mashhad Branch, Mashhad, Iran

    Abolghasem Davoodnia, Mehdi Bakavoli, Sharare Mohseni & Niloofar Tavakoli-Hoseini

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  1. Abolghasem Davoodnia
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  2. Mehdi Bakavoli
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  3. Sharare Mohseni
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  4. Niloofar Tavakoli-Hoseini
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Corresponding author

Correspondence to Abolghasem Davoodnia.

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Correspondence: Abolghasem Davoodnia, Department of Chemistry, School of Sciences, Islamic Azad University, Mashhad Branch, Mashhad 91735-413, Iran.

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Davoodnia, A., Bakavoli, M., Mohseni, S. et al. Synthesis of pyrido[3′,2′:4,5]thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one derivatives. Monatsh Chem 139, 963–965 (2008). https://doi.org/10.1007/s00706-007-0844-6

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  • DOI: https://doi.org/10.1007/s00706-007-0844-6

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