The long-range CH correlation NMR experiment (with decoupling of modulation of intensities due to one-bond couplings during refocusing) and the double quantum coherence correlation spectroscopy (DQCOSY) experiment were used, together with the standard one-bond CH correlation and COSY spectra, for co
Spectral assignment of 2″-O-β-D-glucopyranosylsaikosaponin b2 by two-dimensional NMR techniques
✍ Scribed by Long-Ze Lin; Lee-Juian Lin; Geoffrey A. Cordell; Si-Qi Luo; Hui-Fang Jiang
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 657 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A new derivative of saikosaponin was isolated from the roots of Bupleurum longicaule and identified as 2″‐O‐β″‐D‐glucopyranosylsaikosaponin b2. Its ^1^H and ^13^C NMR data and the connectivities of the sugar moiety were assigned by use of a combination of two‐dimensional NMR techniques (DQF‐COSY, HOHAHA, ROESY, HETCOR and HMBC).
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