A novel acylated flavonol tetraglycoside and rare oleanane saponins with a unique acetal-linked dicarboxylic acid substituent from the xero-halophyte Bassia indica
作者:Ahmed Othman、Yhiya Amen、Kuniyoshi Shimizu
DOI:10.1016/j.fitote.2021.104907
日期:2021.7
investigation. In this context, a new acylated flavonol tetraglycoside, kaempferol-3-O-β-d-glucopyranosyl-(1→6)-O-[β-D-galactopyranosyl-(1→3)-2-O-trans-feruloyl-α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside (14), together with rare occurring flavonol triglycoside, isorhamnetin-3-O-β-d-glucopyranosyl-(1→6)-O-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside (15), were isolated from the aqueous methanol extract
近年来,由于其生物活性化合物的药用和营养潜力,盐生植物的科学兴趣,尤其是其经济意义一直非常高。未经化学或生物研究,干盐植物Bassia indica被认为是一种非常廉价的天然实体来源。在此背景下,一种新的酰化黄酮醇四糖苷,山奈酚-3- O - β - d-吡喃葡萄糖基- (1→6) -O- [ β -D-吡喃半乳糖基- (1→3)-2- O-反式-阿魏酰- α -L-吡喃鼠李糖基-(1→2)]- β -D-吡喃葡萄糖苷 ( 14),连同罕见的黄酮醇三糖苷,异鼠李素-3- O - β - d-吡喃葡萄糖基- (1→6) -O- [α-L-rhamnopyranosyl-(1→2)]- β -D-吡喃葡萄糖苷(15 ),是从B. indica地上部分的甲醇水溶液中分离出来的。该研究还报道了新的最佳的分离和表征开环糖苷齐墩果烷皂苷与2' - [R,3' š立构,确定为(2' - [R,3'小号)-3-