One-pot synthesis and molecular docking of some new spiropyranindol-2-one derivatives as immunomodulatory agents and in vitro antimicrobial potential with DNA gyrase inhibitor
作者:Mohamed A. Salem、Ahmed Ragab、Ahmed A. Askar、Abeer El-Khalafawy、Abeer H. Makhlouf
DOI:10.1016/j.ejmech.2019.111977
日期:2020.2
a series of 2-oxospiro[indoline-3,4'-pyran]derivatives 4 and 7 were obtained in good yield under mild conditions from the one-pot reaction of indole-2,3-dione derivatives 1, appropriate methylene active nitriles 2 and β-dicarbonyl compound 3 or 6. The newly synthesized compounds were characterized and evaluated for their in vitro antibacterial, antifungal as well as immunomodulatory activity. According
从吲哚-2,3-二酮衍生物1,合适的亚甲基活性腈2的单锅反应中,在温和条件下以高收率获得了一系列2-oxospiro [indoline-3,4'-pyran]衍生物4和7。以及β-二羰基化合物3或6。对新合成的化合物进行了表征,并对其体外抗菌,抗真菌和免疫调节活性进行了评估。根据MIC值,评估了最有效的化合物4f,4h,7a,7c,7e,7f,7g,8a和8c的MBC并显示出很高的杀灭病原体活性,对诺氟沙星具有良好的MBC值,并对其进行了研究扩展的多药耐药菌(MDRB)面板并显示出有希望的中度多药耐药活性,化合物7f的效果比诺氟沙星好得多,并具有更高的效价结果。此外,最有效的化合物显示嗜中性粒细胞的细胞内杀伤活性增加,这证实了其免疫刺激能力。9种活性化合物中的8种对金黄色葡萄球菌DNA促旋酶的抑制活性比环丙沙星(26.43±0.64μM)强(IC.50)在(18.07±0.18)至(27