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Synthesis and biological evaluation of 1,2,4‐triazole‐3‐thione and 1,3,4‐oxadiazole‐2‐thione as antimycobacterial agents
Author(s) -
Sonawane Amol D.,
Rode Navnath D.,
Nawale Laxman,
Joshi Rohini R.,
Joshi Ramesh A.,
Likhite Anjali P.,
Sarkar Dhiman
Publication year - 2017
Publication title -
chemical biology and drug design
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 77
eISSN - 1747-0285
pISSN - 1747-0277
DOI - 10.1111/cbdd.12939
Subject(s) - antimycobacterial , oxadiazole , mycobacterium tuberculosis , triazole , cytotoxicity , tuberculosis , in vivo , chemistry , in vitro , microbiology and biotechnology , combinatorial chemistry , efflux , multiple drug resistance , drug resistance , biology , medicine , biochemistry , organic chemistry , pathology
Resistance among dormant mycobacteria leading to multidrug‐resistant and extremely drug‐resistant tuberculosis is one of the major threats. Hence, a series of 1,2,4‐triazole‐3‐thione and 1,3,4‐oxadiazole‐2‐thione derivatives ( 4a–5c ) have been synthesized and screened for their antitubercular activity against Mycobacterium tuberculosis H37Ra (H37Ra). The triazolethiones 4b and 4v showed high antitubercular activity (both MIC and IC 50 ) against the dormant H37Ra by in vitro and ex vivo. They were shown to have more specificity toward mycobacteria than other Gram‐negative and Gram‐positive pathogenic bacteria. The cytotoxicity was almost insignificant up to 100 μg/ml against THP ‐1, A549, and PANC ‐1 human cancer cell lines, and solubility was high in aqueous solution, indicating the potential of developing these compounds further as novel therapeutics against tuberculosis infection.