1. New C21 Steroidal Glycosides, Cynotophyllosides M–O, from Cynanchum Otophyllum
- Author
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Cun-Tan Miao, Zha-Jun Zhan, Fa-Song Wang, Lie-Feng Ma, Hao-Ying Qian, Peng-Fei Wang, and Wei-Guang Shan
- Subjects
chemistry.chemical_classification ,010404 medicinal & biomolecular chemistry ,Cynanchum otophyllum ,chemistry ,Steroidal glycosides ,010405 organic chemistry ,Stereochemistry ,Glycoside ,General Chemistry ,01 natural sciences ,0104 chemical sciences - Abstract
Cynotophyllosides M–O, three new polyhydroxypregnane glycosides, were obtained from the roots of Cynanchum otophyllum, together with four known compounds, deacetylmetaplexignin, sarcostion, cynotophylloside J and kidjoranin 3-O-α-diginopyranosyl-(1→4)-β-cymaropyranoside. Their structures were elucidated using extensive spectroscopic methods (in particular, 2D-NMR techniques) and acid-catalysed hydrolysis.
- Published
- 2017
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