- 作者: Yun-Lian Lina,, Yueh-Hsiung Kuob, Ming-Shi Shiaoc, Chien-Chih Chen a and Jun-Chih Oua
- 中文摘要: Under the inhibition of Cu+2-induced LDL oxidation-guided fractionation, two new flavone glycosides with galloyl substitution were isolated from the dried fallen leaves of Terminalia catappa L. Their structures were established as apigenin 6-C-(2''-O-galloyl)-b-D-glucopyranoside (1) and apigenin 8-C-(2''-O-galloyl)-b-D-glucopyranoside (2), together with four known flavone glycosides, isovitexin, vitexin, isoorientin, and rutin, on the basis of spectroscopic method. Compounds 1 and 2 showed significant antioxidative effects. Their IC50 were 2.1 and 4.5 mM, respectively.
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