2012
DOI: 10.1111/j.1747-0285.2012.01441.x
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Click Chemistry Approach for Bis‐Chromenyl Triazole Hybrids and Their Antitubercular Activity

Abstract: 1,4-Disubstituted bis-chromenyl triazole hybrids 5a-m have been synthesized in a three-step reaction sequence from 4-(bromomethyl)-2H-chromen-2-ones 3a-m. The intermediate azides 4a-m underwent a regioselective 1,3-dipolar cycloaddition with a 2H-chromen-2-one linked acetylenic dipolarophile in the presence of Cu (II)/ascorbate/ water/n-butanol reaction medium. Three compounds 5h-j exhibited 6.25 lg/mL MIC against M. tuberculosis. Among the compounds screened for antifungal activity, lowest MIC of 6.25 lg/mL w… Show more

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Cited by 52 publications
(17 citation statements)
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References 31 publications
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“…SAR study reveals that chloro and benzosubstituents on the coumarin ring have had remarkable impact on the anti‐TB activity. Thus, these substituents reinforce the anti‐TB activity of coumarin–triazole hybrids (Figure ).…”
Section: 23‐triazole Derivatives For Treatment Of Tuberculosismentioning
confidence: 70%
“…SAR study reveals that chloro and benzosubstituents on the coumarin ring have had remarkable impact on the anti‐TB activity. Thus, these substituents reinforce the anti‐TB activity of coumarin–triazole hybrids (Figure ).…”
Section: 23‐triazole Derivatives For Treatment Of Tuberculosismentioning
confidence: 70%
“…In particular, their physiological, bacteriostatic and anti-tumour activity (Mustafa et al, 2011) makes these compounds attractive for further backbone derivatization and screening for their therapeutic properties. 2H-chromen-2-ones exhibit extensive natural occurrence and biocompatibility, and have been found to exhibit variety of biological activities (Naik et al, 2012). data reports…”
Section: Structure Descriptionmentioning
confidence: 99%
“…In this case, beside the desired bromine an additional bromine was introduced in position 3 of the coumarin to yield dibromo derivative 10a (66%). A selective introduction of the bromine only in the methyl group is not possible under these conditions [29]. Despite the excess of NBS, 10b was found as by-product (7%).…”
Section: Synthesis Of Functionalized Coumarinsmentioning
confidence: 98%