Synthesis, characterization and molecular docking studies of novel 2-amino 3-cyano pyrano[2,3H]chrysin derivatives as potential antimicrobial agents
2015
A series of novel 2-amino 3-cyano 4-aryl pyrano[2,3H]chrysin derivatives (3a–m) were efficiently synthesized by one-pot three-component reaction of aromatic aldehydes, malononitrile and chrysin and characterized by 1H NMR, 13C NMR and mass spectral data. All the newly synthesized compounds were evaluated for their in vitro antimicrobial activity (antibacterial and antifungal). Among the tested compounds, 3a, 3g, 3h, 3j and 3k showed potent antibacterial activity compared to ciprofloxacin and the compounds 3a, 3g, 3h, 3i and 3k showed excellent antifungal activity compared to itrazole. The compounds 3a, 3g, 3h and 3k exhibited potent antimicrobial activity against all the selected pathogenic bacteria and fungi and emerged as potential molecules for further development. In addition, molecular modeling studies also performed to delineate the putative binding mode of these compounds. All of these chrysin derivatives (3a–m) obeyed the Lipinski’s “rule of five” and have drug-likeness. Docking scores with appreciable binding energy values also exactly correlated with the experimental antimicrobial activity. The chemscore estimated by GOLD software was found to have a good correlation with the experimental inhibitory activity. Docking of compound 3g with protein
A series of novel 2-amino 3-cyano pyrano[2,3H]chrysin derivatives (3a–m) has been synthesized and evaluated for their antimicrobial activity along with molecular modeling studies
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