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Two novel immunosuppressive pregnane glycosides from the roots of Stephanotis mucronata
Yiping Ye1, Fengyang Chen, Hongxiang Sun
1Institute of Materia Medica, Zhejiang Academy of Medical Sciences, Hangzhou, PR China. yeyiping2005@163.com
Abstract:
Two novel pregnane glycosides, together with one new aglycone, were isolated from the roots of Stephanotis mucronata. Their structures were determined by means of chemical evidence and extensive spectroscopic methods including 1D and 2D NMR. The two pregnane glycosides displayed significant immunosuppressive activities in vitro.
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