Efficient click chemistry towards novel 1H-1,2,3-triazole-tethered 4H-chromene−d-glucose conjugates: Design, synthesis and evaluation of in vitro antibacterial, MRSA and antifungal activities

European Journal of Medicinal Chemistry
2019.0

Abstract

The series of 2-amino-7-propargyloxy-4H-chromene-3-carbonitriles 5a-t were synthesized from corresponding 2-amino-7-phydroxy-4H-chromene-3-carbonitriles 4a-t and propargyl bromide. Two procedures were used in these syntheses: K<sub>2</sub>CO<sub>3</sub>/acetone and NaH/DMF procedures with yields of 65-89% and 80-96%, respectively. 1H-1,2,3-Triazole-tethered 4H-chromene-d-glucose conjugates 7a-t were synthesized using click chemistry of propargyl ethers 5a-t and tetra-O-acetyl-β-d-glucopyranosyl azide. Cu@MOF-5 was the optimal catalyst for this chemistry. The yields of 1H-1,2,3-triazoles were 80-97.8%. All triazoles 7a-t were evaluated in vitro for anti-microorganism activities. Among tested compounds with MIC values of 1.56-6.25 μM, there were four compounds against B. subtilis, four compounds against S. aureus, and four compounds against S. epidermidis; five compounds against E. coli, four compounds against K. pneumoniae, five compounds against P. aeruginosa, and six compounds against S. typhimurium. Compounds 7c,7d,7f,7h, and 7r had MIC values of 1.56-6.25 μM for three clinical MRSA isolates. Some compounds had inhibitory activities against four fungi, including A. niger, A. flavus, C. albicans, and S. cerevisiae, with MIC values of 1.56-6.25 μM. Some 1H-1,2,3-triazoles had comparatively low toxicity against RAW 264.7 cells.

Knowledge Graph

Similar Paper

Efficient click chemistry towards novel 1H-1,2,3-triazole-tethered 4H-chromene−d-glucose conjugates: Design, synthesis and evaluation of in vitro antibacterial, MRSA and antifungal activities
European Journal of Medicinal Chemistry 2019.0
A click chemistry approach for the synthesis of mono and bis aryloxy linked coumarinyl triazoles as anti-tubercular agents
European Journal of Medicinal Chemistry 2015.0
Synthesis and biological evaluation of new 2-chloro-3-((4-phenyl-1H-1,2,3-triazol-1-yl)methyl)quinoline derivatives via click chemistry approach
European Journal of Medicinal Chemistry 2010.0
Synthesis, crystal structure and antimicrobial potential of some fluorinated chalcone-1,2,3-triazole conjugates
European Journal of Medicinal Chemistry 2018.0
Synthesis of newer 1,2,3-triazole linked chalcone and flavone hybrid compounds and evaluation of their antimicrobial and cytotoxic activities
European Journal of Medicinal Chemistry 2016.0
A click chemistry approach for the synthesis of cyclic ureido tethered coumarinyl and 1-aza coumarinyl 1,2,3-triazoles as inhibitors of Mycobacterium tuberculosis H37Rv and their in silico studies
Bioorganic &amp; Medicinal Chemistry 2019.0
One pot Click chemistry: A three component reaction for the synthesis of 2-mercaptobenzimidazole linked coumarinyl triazoles as anti-tubercular agents
Bioorganic &amp; Medicinal Chemistry Letters 2016.0
Synthesis of sugars embodying conjugated carbonyl systems and related triazole derivatives from carboxymethyl glycoside lactones. Evaluation of their antimicrobial activity and toxicity
Bioorganic &amp; Medicinal Chemistry 2011.0
Synthesis and antimicrobial activity of some new 4-triazolylmethoxy-2H-chromen-2-one derivatives
Medicinal Chemistry Research 2012.0
Synthesis and biological evaluation of novel 2,4,5-triarylimidazole–1,2,3-triazole derivatives via click chemistry as α-glucosidase inhibitors
Bioorganic &amp; Medicinal Chemistry Letters 2016.0