Synthesis, antimicrobial activity, structure-activity relationship and cytotoxic studies of a new series of functionalized (Z)-3-(2-oxo-2-substituted ethylidene)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-ones
作者:Ritu Sharma、Lalit Yadav、Jaggi Lal、Pradeep K. Jaiswal、Manas Mathur、Ajit K. Swami、Sandeep Chaudhary
DOI:10.1016/j.bmcl.2017.08.017
日期:2017.9
ethylidene)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-ones 23–26, incorporating pharmaceutically privileged substructures such as cyclopropyl, naphthyl, biphenyl and cyclohexylphenyl were synthesized in excellent yields. All the synthesized compounds were screened for their in vitro antibacterial activity against gram-(+)ve and gram-(−)ve bacterial species i.e. S. griseus, S. aureus, B. subtillis and E. coli as
一系列新的官能化(Z)-3-(2-氧-2-取代亚乙基)-3,4-二氢-2 H-苯并[ b ] [1,4]恶嗪-2-酮23 – 26,以优异的产率合成了药学上优先的亚结构,例如环丙基,萘基,联苯和环己基苯基。所有合成的化合物筛选它们体外抗革兰氏抗菌活性- (+)ve和克- ( - )已经细菌物种即灰色链霉菌,金黄色葡萄球菌,枯草芽孢杆菌和大肠杆菌以及体外抗真菌对真菌物种,即氧化枯萎病菌的活性,A。niger,P。funiculosum和T. reesei。在这项研究中,与标准药物,氨苄青霉素和氯霉素以及酮康唑相比,含有环丙基和环己基苯基亚结构的化合物被确定为有前途的抗菌剂。SAR研究表明,吸电子基团增加了2-氧代-苯并[1,4]恶嗪的抗菌和抗真菌活性,反之亦然。该系列中活性最高的化合物23e和26e比氨苄青霉素和氯霉素显示出令人鼓舞的抗菌活性。此外,化合物26d与酮康唑相比,它显示出有希望的抗真菌效力。使用MTT分析法对3T