Abstract Three C-glycosylflavones isolated from Cerastium arvense have been identified as 6-C-xylosyl-apigenin (cerarvensin), its 7-O-glucoside and isovitexin 7,2″-di-O-glucoside.
Regioselective synthesis of di-C-glycosylflavones possessing anti-inflammation activities
作者:Jiun-Jie Shie、Chih-An Chen、Chih-Chien Lin、Angela Fay Ku、Ting-Jen R. Cheng、Jim-Min Fang、Chi-Huey Wong
DOI:10.1039/c0ob00011f
日期:——
Three methods are utilized to synthesize a variety of 6,8-di-C-glycosylflavones bearing identical or distinct glycosyl moieties. Some C-glycosylation compounds are found to have better anti-inflammation activities than the parent flavones. Among them, 6,8-di-C-glucosylapigenin (known as vicenin-2) shows inhibition of TNF-α expression and NO production with IC50 values of 6.8 and 5.2 μM, respectively.