试图从 Avena sativa 的糠调查化学成分。方法混合物被各种各样的列用 macroporous 树脂,硅石胶化, Sephadex LH-20, ODS,和准备反向阶段的 HPLC 孤立并且净化色析法的技术。他们的结构被物理化学的性质和分光镜的数据阐明。结果十五化学成分作为 kaempferol 被孤立并且鉴别3-O-( 2 , 3-di-E-p-coumaroyl ) -a-L-rhamnopyranoside ( 1 ), kaempferol 3-O-( 3-E-p-coumaroyl ) -a-L-rhamnopyranoside ( 2 ), kaempferol 3-O-( 2-O-E-p-coumaroyl )-- D-glucopyranoside ( 3 ), kaempferol 3-O--D-glucopyranoside ( 4 ), kaempferol 7-O-a-L-rhamnopyranoside ( 5 ), linarin ( 6 ), tilianin ( 7 ), myricitrin ( 8 ),橡素( 9 ), kaempferol 3-O-rutinoside ( 10 ),卢丁( 11 ), tricin 7-O--D-glucopyranoside ( 12 ), tricin ( 13 ), kaempferol ( 14 ),和 lu 结论混合物 1-9 从 Avena sativa 悬崖被孤立。第一次。
AIM: To investigate the chemical constituents from the bran of Avena sativa. METHODS: Compounds were isolated and purified by various column chromatographic techniques using macroporous resin, silica gel, Sephadex LH-20, ODS, and prepara-tive reversed-phase HPLC. Their structures were elucidated by physicochemical properties and spectroscopic data. RESULTS: Fifteen chemical constituents were isolated and identified as kaempferol 3-O-(2", 3"-di-E-p-coumaroyl)-α-L-rhamnopyranoside (1), kaempferol 3-O-(3"-E-p-coumaroyl)-α-L-rhamnopyranoside (2), kaempferol 3-O-(2"-O-E-p-coumaroyl)-β-D-glucopyranoside (3), kaempferol 3-O-β-D-glucopyranoside (4), kaempferol 7-O-α-L-rhamnopyranoside (5), linarin (6), tilianin (7), myricitrin (8), quercitrin (9), kaempferol 3-O-rutinoside (10), rutin (11), tricin 7-O-β-D-glucopyranoside (12), tricin (13), kaempferol (14), and luteolin (15). CONCLUSION: Compounds 1-9 were isolated from Avena sativa Linn. for the first time.