Xie Chen, Veitch Nigel C, Houghton Peter J, Simmonds Monique S J
Royal Botanic Gardens Kew, Richmond, Surrey, UK.
Chem Pharm Bull (Tokyo). 2003 Oct;51(10):1204-7. doi: 10.1248/cpb.51.1204.
A new flavone C-glycoside, apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-L-arabinopyranoside, has been isolated from Viola yedoensis together with the known compounds, apigenin 6,8-di-C-alpha-L-arabinopyranoside, apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-glucopyranoside (isoschaftoside), apigenin 6-C-beta-D-glucopyranosyl-8-C-alpha-L-arabinopyranoside (schaftoside), apigenin 6-C-beta-D-glucopyranosyl-8-C-beta-L-arabinopyranoside (neoschaftoside), apigenin 6,8-di-C-beta-D-glucopyranoside (vicenin-2), apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-xylopyranoside, apigenin 6-C-beta-D-xylopyranosyl-8-C-alpha-L-arabinopyranoside, luteolin 6-C-beta-D-glucopyranoside (isoorientin) and luteolin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-glucopyranoside (isocarlinoside). The structures were determined by spectroscopic methods and new or revised (1)H- and (13)C-NMR spectral assignments are proposed for some compounds.
从紫花地丁中分离出一种新的黄酮碳苷,芹菜素6-C-α-L-阿拉伯吡喃糖基-8-C-β-L-阿拉伯吡喃糖苷,同时还分离出了已知化合物芹菜素6,8-二-C-α-L-阿拉伯吡喃糖苷、芹菜素6-C-α-L-阿拉伯吡喃糖基-8-C-β-D-葡萄糖吡喃糖苷(异荭草苷)、芹菜素6-C-β-D-葡萄糖吡喃糖基-8-C-α-L-阿拉伯吡喃糖苷(荭草苷)、芹菜素6-C-β-D-葡萄糖吡喃糖基-8-C-β-L-阿拉伯吡喃糖苷(新荭草苷)、芹菜素6,8-二-C-β-D-葡萄糖吡喃糖苷(异荭草素)、芹菜素6-C-α-L-阿拉伯吡喃糖基-8-C-β-D-木糖吡喃糖苷、芹菜素6-C-β-D-木糖吡喃糖基-8-C-α-L-阿拉伯吡喃糖苷、木犀草素6-C-β-D-葡萄糖吡喃糖苷(异荭草苷)和木犀草素6-C-α-L-阿拉伯吡喃糖基-8-C-β-D-葡萄糖吡喃糖苷(异卡林苷)。通过光谱方法确定了结构,并对一些化合物提出了新的或修订的¹H和¹³C-NMR光谱归属。