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Licensed Unlicensed Requires Authentication Published by De Gruyter November 24, 2020

A study of antituberculosis activities and crystal structures of (E)-2-[2-(arylidene)hydrazinyl]pyrimidine and (E)-N1-(arylidene)pyrimidine-2-carbohydrazide derivatives

  • Alessandra C. Pinheiro , Thaís C. M. Nogueira , Cristiane França da Costa , Cristina Lourenço , John N. Low , James L. Wardell EMAIL logo , Solange M. S. V. Wardell and Marcus V. N. de Souza

Abstract

A study of the anti-tuberculosis activity against Mycobacterium tuberculosis ATTC 27294 and an X-ray structural determination of (E)-2-[2-(arylidene)hydrazinyl]pyrimidine, 1, and (E)-N1-(arylidene)pyrimidine-2-carbohydazide, 2, derivatives are presented. The effect of the substituents in the aryl moiety on the antituberculosis (anti-TB) activities of 1 and 2 is compared with that of other heteroaryl hydrazonyl and acylhydrazonyl derivatives. The biological activities of 1 do not depend on the coordinating ability of the substituted aryl group: in 2, the most effective aryl group is 5-nitrofuranyl. The structure determinations of (E)-2-((2-(pyrimidin-2-yl)hydrazono)methyl)-phenol, (E)-N′-(2,5-dihydroxybenzylidene)pyrimidine-2-carbohydrazide and of the hydrate of (E)-N′-(2-hydroxy-4-methylbenzylidene)pyrimidine-2-carbohydrazide, and a literature search of related structures in the CCDC data base, allowed an examination of the more important interactions, including the occurrence of X–Y⋯π interactions.


Corresponding author: James L. Wardell, Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos - Farmanguinhos, 21041-250, Rio de Janeiro, RJ, Brazil; and Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen, AB24 3UE, Scotland, UK, E-mail:

Acknowledgements

The authors thank the National Crystallographic Service, University of Southampton for the data collection, and for their help and advice.

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Supplementary Material

The online version of this article offers supplementary material (https://doi.org/10.1515/znb-2020-0108).


Received: 2020-06-10
Accepted: 2020-10-20
Published Online: 2020-11-24
Published in Print: 2020-12-16

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