Synthesis and Antibacterial Activity of 4,6-Dimethoxy-2-(4-methoxyphenyl)benzofuran-3-yl-methanone Derivatives and its Intermediates
作者:V. Krishna Reddy、J. Venkateswara Rao、L. Bhaskar Reddy、B. Ram、B. Balram
DOI:10.14233/ajchem.2015.18645
日期:——
Encouraged by the interesting biological activities associated with benzo[b]furan derivatives, we report here the synthesis, spectroscopic identification and antibacterial activity of benzo[b]furan derivatives (6a-6g) prepared from commercially available, 3,5-dimethoxyphenol and 1-ethynyl-4-methoxybenzene. The synthesized targets were screened for their antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Streptococus pyogenes, while using norfloxacin, as the standard drug. In general, it is observed that benzo[b]furan derivatives (6a, 6b, 6c) having R = 2,4-dimethoxy phenyl, 2,4,6-trimethoxy phenyl and 3,4,5-trimethoxy phenyl rings, respectively displayed excellent activity against these microbial species while compound 5 (having benzo[b]furan motif) showed good activity and the compound 2 (having -OH group) and compound 4 (having acetate group) exhibited moderate antibacterial activity.
受与苯并[b]呋喃衍生物相关的有趣生物活性的鼓励,我们在此报告了由市售的3,5-二甲氧基苯酚和1制备的苯并[b]呋喃衍生物(6a-6g)的合成、光谱鉴定和抗菌活性。 -乙炔基-4-甲氧基苯。以诺氟沙星为标准药物,筛选合成靶标对大肠杆菌、铜绿假单胞菌、金黄色葡萄球菌和化脓性链球菌的抗菌活性。一般来说,观察到苯并[b]呋喃衍生物(6a、6b、6c)分别具有R = 2,4-二甲氧基苯基、2,4,6-三甲氧基苯基和3,4,5-三甲氧基苯基环对这些微生物物种表现出优异的活性,而化合物 5(具有苯并[b]呋喃基序)表现出良好的活性,化合物 2(具有 -OH 基团)和化合物 4(具有乙酸基团)表现出中等的抗菌活性。