作者:Mehdi Chaabi、Philippe Chabert、Catherine Vonthron-Sénécheau、Bernard Weniger、Modibo Ouattara、Hugo Corstjens、Ilse Sente、Lieve Declercq、Annelise Lobstein
DOI:10.1016/j.phytol.2009.12.002
日期:2010.6
Two new acylated flavonol pentaglycosides were isolated from the butanolic extract of Baphia nitida leaves by Sephadex LH-20 and preparative HPLC. Structural elucidation of kaempferol 3-O-β-d-xylopyranosyl(1 → 3)-(4-O-E-p-coumaroyl-α-l-rhamnopyranosyl(1 → 2))[β-d-glucopyranosyl(1 → 6)]-β-d-galactopyranoside-7-O-α-l-rhamnopyranoside (1) and kaempferol 3-O-β-d-xylopyranosyl(1 → 3)-(4-O-Z-p-coumaroyl
通过Sephadex LH-20和制备型HPLC从碱蓬青枯叶的丁醇提取物中分离出两种新的酰化黄酮醇五糖苷。的结构解析山奈酚3- ö -β- d -xylopyranosyl(1→3) - (4- ø - ë - p -coumaroyl-α-升-rhamnopyranosyl(1→2))[β- d吡喃葡萄糖基- (1→ 6)] - β- d -galactopyranoside -7- ö -α-升-rhamnopyranoside(1)和山奈酚3- ö -β- d -xylopyranosyl(1→3) - (4- ø - ž - p -coumaroyl- α-升-rhamnopyranosyl(1→2))[β- d吡喃葡萄糖基(1→6)] - β- d -galactopyranoside -7- ö -α-升-rhamnopyranoside(2),使用UV,NMR达到了,和质谱,