58117-32-1Relevant academic research and scientific papers
Antioxidant activity of a new C-glycosylflavone from the leaves of Ficus microcarpa
Kiem, Phan Van,Cuong, Nguyen Xuan,Nhiem, Nguyen Xuan,Thu, Vu Kim,Ban, Ninh Khac,Minh, Chau Van,Tai, Bui Huu,Hai, Truong Nam,Lee, Sang Hyun,Jang, Hae Dong,Kim, Young Ho
, p. 633 - 637 (2011)
By bioactive-guided fractionation of methanol extract of the Ficus microcarpa leaves, one new C-glucosylflavone, ficuflavoside (1), one new megastigmane glycoside, ficumegasoside (8), and twelve known compounds including flavonoids (2-6), phenylpropanoids (7), megastigmanes (9-11) and sterol derivatives (12-14) were isolated. Their chemical structures were elucidated by mass, 1D, and 2D NMR spectroscopies. The antioxidant activities of these compounds were measured using the oxygen radical absorbance capacity methods. Compounds 1-6 exhibited potent antioxidant activities of 6.6-9.5 μM Trolox equivalents at the concentration of 2.0 μM. The results indicated 2, 3, and 5 having meaningful reducing capacity of copper (I) ions concentration of 6.1-8.4 μM.
