Abstract:
:A series of novel amide functionalized 2H-chromene derivatives 3 were prepared starting from ethyl-2-hydroxy-2-(trifluoromethyl)-2H-chromene-3-carboxylate 1 via sodium borohydride reduction followed by Ritter amidation using HBF4·OEt2 as a mild and versatile reagent. All the products 3 were screened for antimicrobial activity against various Gram-positive, Gram-negative bacteria and fungal strain. The promising derivatives such as 3f, 3g, 3k, 3l, 3m, 3n and 3o were further screened for minimum bactericidal concentration and bio-film inhibition activity and identified the potential ones. Among all the promising, compound 3g was more potent for antimicrobial, MBC and anti bio-film activities. The structure verses activity relationship of 3g revealed that the presence of two bromine atoms at sixth and R position promotes high activity.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Ratnakar Reddy K,Poornachandra Y,Jitender Dev G,Mallareddy G,Nanubolu JB,Kumar CG,Narsaiah Bdoi
10.1016/j.bmcl.2015.05.041subject
Has Abstractpub_date
2015-08-01 00:00:00pages
2943-7issue
15eissn
0960-894Xissn
1464-3405pii
S0960-894X(15)00503-Xjournal_volume
25pub_type
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