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Marsdenosides A—H, Polyoxypregnane Glycosides from Marsdenia tenacissima.

✍ Scribed by Jun Deng; Zhixin Liao; Daofeng Chen

Publisher
John Wiley and Sons
Year
2005
Weight
20 KB
Volume
36
Category
Article
ISSN
0931-7597

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## Abstract Two new polyoxypregnane glycosides, marsdenosides L and M (**1** and **2**, resp.), along with five known polyoxypregnane glycosides, **3**–**7**, were isolated from the stem of __Marsdenia tenacissima__ (Roxb.) Wight et Arn. (Asclepiadaceae). The structures and relative configurations

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Four new pregnane glycosides, tenacigenosides A -D (1 -4), along with six known pregnane aglycones and five known pregnane glycosides, were isolated from the stems of Marsdenia tenacissima (ROXB.) WIGHT et ARN. (Asclepiadaceae). The chemical structures of the new compounds were established by 1D-and