Kostova Ivanka, Dinchev Dragomir, Rentsch Gudrun Hopp, Dimitrov Vladimir, Ivanova Antoaneta
Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria.
Z Naturforsch C J Biosci. 2002 Jan-Feb;57(1-2):33-8. doi: 10.1515/znc-2002-1-206.
The known furostanol saponins methylprotodioscin and protodioscin and two new sulfated saponins, sodium salt of 26-O-beta-glucopyranosyl-22alpha-methoxy-(25R)-furost-5-ene-3beta,26-diol-3-O-alpha-rhamnopyranosyl-(1-->2)-beta-4-O-sulfo-glucopyranoside (methylprototribestin) and sodium salt of 26-O-beta-glucopyranosyl-22alpha-hydroxy-(25R)-furost-5-ene-3beta,26-diol-3-O-alpha-rhamnopyranosyl-(1-->2)-beta-4-O-sulfo-glucopyranoside (prototribestin) have been isolated from the aerial parts of Tribulus terrestris L. growing in Bulgaria. The structures of the new compounds were elucidated on the basis of 1D and 2D (DQF-COSY, TOCSY, HSQC-TOCSY, HSQC, HMBC, ROESY) NMR data, ESI mass spectra and chemical transformation.
已从生长于保加利亚的刺蒺藜地上部分分离出已知的呋甾烷醇皂苷甲基原薯蓣皂苷和原薯蓣皂苷，以及两种新的硫酸化皂苷，即26 - O - β - 吡喃葡萄糖基 - 22α - 甲氧基 - (25R) - 呋甾 - 5 - 烯 - 3β,26 - 二醇 - 3 - O - α - 鼠李吡喃糖基 - (1→2) - β - 4 - O - 磺基 - 吡喃葡萄糖苷钠盐（甲基原刺蒺藜皂苷）和26 - O - β - 吡喃葡萄糖基 - 22α - 羟基 - (25R) - 呋甾 - 5 - 烯 - 3β,26 - 二醇 - 3 - O - α - 鼠李吡喃糖基 - (1→2) - β - 4 - O - 磺基 - 吡喃葡萄糖苷钠盐（原刺蒺藜皂苷）。基于一维和二维（DQF - COSY、TOCSY、HSQC - TOCSY、HSQC、HMBC、ROESY）核磁共振数据、电喷雾电离质谱和化学转化对新化合物的结构进行了阐明。
