Facile Synthesis and <i>In Vitro</i>
Nitric Oxide Production Inhibitory Activity of Benzoxazoles
作者:Hyeong Jin Park、Jin-Kyung Kim、Jong-Gab Jun
DOI:10.1002/bkcs.11465
日期:2018.6
in vitro nitric oxide (NO) inhibitory effect was further evaluated as an indicator of anti‐inflammatory activity in LPS‐induced RAW 264.7 cells and found to display weak to moderate activity in a concentration‐dependent manner without marked cytotoxicity. Overall, compound 8 (53.5% at 10 μM; IC50 = 8.17 μM) followed by compound 6 (12.7% at 10 μM; IC50 = 28.26 μM) exhibited significant activity, being
天然苯并恶唑的简便合成,nocarbenzoxazoles F(1),G(5)及它们的衍生物(2-4和6 - 8)从与总产率从15%至49%的可商购的廉价的前体物实现的。POCl 3介导的环脱水,选择性和/或完全脱甲基和还原为关键步骤,使我们获得该系列苯并恶唑的策略成为可能。他们的体外一氧化氮(NO)抑制作用被进一步评估为LPS诱导的RAW 264.7细胞中抗炎活性的指标,并发现其以浓度依赖性方式显示弱至中度活性,而没有明显的细胞毒性。总体而言,化合物8(10μM时为53.5%; IC 50 = 8.17μM),随后是化合物6(10μM时为12.7%; IC 50 = 28.26μM)表现出显着活性,比阳性对照L-NMMA(在10μM时为19.5%; IC 50 = 18.77μM)。