通过在甲醇中用氯化铟（III）处理茑萝种子的旋花素部分生成了三种酰化糖苷酸甲酯和两种酰化甲基糖苷。

Three acylated glycosidic acid methyl esters and two acylated methyl glycosides generated from the convolvulin fraction of seeds of Quamoclit pennata by treatment with indium(III) chloride in methanol.

作者信息

Akiyama Kousuke, Mineno Tomoko, Okawa Masafumi, Kinjo Junei, Miyashita Hiroyuki, Yoshimitsu Hitoshi, Nohara Toshihiro, Ono Masateru

机构信息

School of Agriculture, Tokai University.

出版信息

Chem Pharm Bull (Tokyo). 2013;61(9):952-61. doi: 10.1248/cpb.c13-00355.

DOI:10.1248/cpb.c13-00355

PMID:23995359

Abstract

Treatment of the ether-insoluble resin glycoside (convolvulin) fraction from seeds of Quamoclit pennata (Convolvulaceae) with indium(III) chloride in methanol provided three oligoglycosides of hydroxy fatty acid (glycosidic acid) methyl esters and two methyl glycosides, which were partially acylated by a glycosidic acid, 7S-hydroxydecanoic acid 7-O-β-D-quinovopyranoside (quamoclinic acid B) and/or two organic acids, (E)-2-methylbut-2-enoic (tiglic) acid and/or 3R-hydroxy-2R-methylbutyric (nilic) acid. Their structures were elucidated on the basis of spectroscopic data and chemical conversions.

摘要

用甲醇中的氯化铟（III）处理茑萝（旋花科）种子中的醚不溶性树脂糖苷（旋花素）部分，得到了三种羟基脂肪酸（糖苷酸）甲酯的低聚糖苷和两种甲基糖苷，它们部分被糖苷酸、7S-羟基癸酸7-O-β-D-奎诺吡喃糖苷（茑萝酸B）和/或两种有机酸，（E）-2-甲基-2-丁烯酸（惕各酸）和/或3R-羟基-2R-甲基丁酸（尼里酸）酰化。根据光谱数据和化学转化对它们的结构进行了阐明。