Antioxidant C-glycosyl flavones from the leaves of Sasa kurilensis var. gigantea.
作者： Tatsuya Hasegawa , Ayumi Tanaka , Akiko Hosoda , Fumihide Takano , Tomihisa Ohta
DOI: 10.1016/J.PHYTOCHEM.2007.12.003
关键词: Glycoside 、 Acid hydrolysis 、 Hydrolysis 、 Absolute configuration 、 Glycosyl 、 Chemistry 、 Ascorbic acid 、 DPPH 、 Stereochemistry 、 Flavones
摘要: Abstract C -glycosyl flavones, kurilensin A ( 1 ) and B 2 ), together with two known compounds, tricin-4′- O -β- d -glucopyranoside 3 tricin-5- 4 were isolated from hot-water extracts of the leaves Sasa kurilensis . The structure compounds was determined by spectroscopic analyses including 1D, 2D NMR MS. absolute configuration sugar moieties in chiral HPLC benzoyl derivatives acid hydrolysis. Compounds exhibited higher radical scavenging activity than ascorbic 1,1-diphenyl-2-pycrylhydrazyl (DPPH) assay system.
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