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Two New C21 Steroidal Glycosides from the Stems of Marsdenia tenacissima

✍ Scribed by Hua Zhang; Ai-Min Tan; Feng Feng; Shi-Bao Yang; An-Yuan Zhang; Xin Huang

Publisher
John Wiley and Sons
Year
2008
Tongue
German
Weight
170 KB
Volume
91
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Two new pregnane glycosides, (3__β__,5__α__,12__β__,14__β__,17__α__)‐3‐(β‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl benzoate (1) and (3__β__,5__α__,12__β__,14__β__,17__α__)‐3‐(β‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl cinnamate (2) were isolated from the stems of Marsdenia tenacissima. The structures and relative configurations of the new compounds were elucidated by spectroscopic methods, including mass spectrometry and NMR spectroscopy.

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