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题名: Two new complex triterpenoid saponins from Gledistsia dolavayi Franch.
作者: Teng, RW; Ni, W; Wang, DZ; Ding, JK; Chen, CX
刊名: MAGNETIC RESONANCE IN CHEMISTRY
关键词: NMR ; H-1 NMR ; C-13 NMR ; 2D NMR ; Gledistsia dolavayi Franch. ; Leguminosae ; triterpenoid saponin ; gledistside A ; gledistside B ; NMR complete assignments
英文摘要: Two new triterpenoid saponins, gledistside A (1) and gledistside B (2), isolated from the fruits of Gledistsia dolavayi Franch., were characterized as the 3,28-O-bisdesmoside of echinocystic acid acylated with monoterpene carboxylic acids. On the basis of spectroscopic and chemical evidence, their structures were elucidated as 3-O-beta-D-xylopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl-(1 --> 6)-beta-D-glucopyranosyl-28-O-beta-D-xylopyranosyl-(1 --> 3)-beta-D-xylopyranosyl-(1 --> 4)-[beta-D-galactopyranosyl-(1 --> 2)-alpha-L-rhamnopyranosyl-(1 --> 2)- -(6-O-[2,6-dimethyl-6(S)-hydroxy-2-trans-2,7-octadienoyl])-beta-D-glucopyranosylechinocystic acid (1) and 3-O-beta-D-xylopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl-(1 --> 6)-beta-D-glucopyranosyl-28-O-beta-D-xylopyranosyl-(1 --> 3)-beta-D-xylopyranosyl-(1 --> 4)-beta-D-galactopyranosyl-(1 --> 2)]-alpha-L-rhamnopyranosyl-(1 --> 2)-6-O-[2-hydroxymethyl-6-methyl-6(S)-hydroxy-2-trans-2,7-octadienoyl])-beta-D-glucopyranosylechinocystic acid (2). The complete H-1 and C-13 assignments of saponins 1 and 2 were achieved on the basis of 2D NMR spectra including HMQC-TOCSY, TOCSY, H-1-H-1 COSY, HMBC, ROESY and HMQC spectra. Copyright (C) 2002 John Wiley Sons, Ltd.
出版日期: 2002-09-01
卷号: 40, 期号:9, 页码:609-613
语种: 英语
收录类别: SCI ; IC
学科分类: Chemistry, Multidisciplinary; Chemistry, Physical; Spectroscopy
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/14605
Appears in Collections:植物化学与西部植物资源持续利用国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Yunnan 650204, Peoples R China

Recommended Citation:
Teng, RW; Ni, W; Wang, DZ; Ding, JK; Chen, CX.Two new complex triterpenoid saponins from Gledistsia dolavayi Franch.,MAGNETIC RESONANCE IN CHEMISTRY,2002,40(9):609-613
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