First synthesis and in vitro biological assessment of isosideroxylin, 6,8-dimethylgenistein and their analogues as nitric oxide production inhibition agents
作者:Jong-Woon Jung、Kongara Damodar、Jin-Kyung Kim、Jong-Gab Jun
DOI:10.1016/j.cclet.2016.12.041
日期:2017.5
protocol and Suzuki coupling as the pivotal transformations. Next, these compounds evaluated for their inhibitory potency on the production of nitric oxide (NO) in lipopolysaccharide (LPS)-activated RAW-264.7 cells as an indicator of anti-inflammatory activity. The results showed that all the compounds decreased NO production in a dose-dependent manner without marked cytotoxicity and IC 50 values are found
摘要首次建立了具有生物意义的重要的C-甲基异黄酮异木苷(1),6,8-二甲基金雀异黄素(2)及其类似物(3-8)的模块化有效合成方法。该合成可以通过7-8个步骤完成,从市售廉价的间苯三酚的总收率可达16%-24%,并且具有高产率的Vilsmeier-Haack反应,Friedel-Crafts酰化,Gammill方案和Suzuki偶联作为关键转化。接下来,这些化合物评估了其对脂多糖(LPS)活化的RAW-264.7细胞中一氧化氮(NO)产生的抑制作用,作为抗炎活性的指标。结果表明,所有化合物均以剂量依赖性方式降低NO的产生,而没有明显的细胞毒性,IC 50值在10.17–33.88μmol/ L范围内。