Furostanol saponins from Paris polyphylla: Structures of polyphyllin G and H
β Scribed by Sheo B. Singh; Raghunath S. Thakur; Hans-R. Schulten
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 385 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0031-9422
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## Abstract A mixture of a pair of stereoisomeric new spirostanol saponins (1a and 1b) and a new cholestane saponin (2) were isolated from the rhizome of __Paris pollyphylla__ Smith var. __yunnanensis__. Their structures were elucidated as (25__R__)βspirostβ5βenβ3Ξ², 7Ξ²βdiolβ3β__O__βΞ±βLβarabinofuran
## Abstract Three new furostanol saponins (1β3) were isolated from the roots of __Tupistra chinensis (T. chinensis)__. And their structures were elucidated on the basis of NMR and mass spectrometry (MS) spectral analysis. Copyright Β© 2009 John Wiley & Sons, Ltd.
## Abstract Four new furostanol saponins (1β4), two pairs of diastereoisomers, were isolated from methanolic extracts of __T__upistra chinensis rhizomes and their structures were assigned from ^1^H and ^13^C NMR spectra, DEPT, and by 2D COSY, NOESY, HMQC, and HMBC experiments. Copyright Β© 2008 John