## Abstract Six new C~21~ steroidal glycosides **1**–**6** were isolated from the stem parts of __Cynanchum bungei__ Decne. The structures of the new glycosides were determined on the basis of spectroscopic analysis, including 1D‐ and 2D‐NMR and HR‐ESI‐MS techniques as well as by comparison of thei
Six new C21 steroidal glycosides from Asclepias curassavica L.
✍ Scribed by Jun-Zhu Li; Hai-Yang Liu; Yi-Ju Lin; Xiao-Jiang Hao; Wei Ni; Chang-Xiang Chen
- Book ID
- 116892169
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 424 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0039-128X
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## Abstract magnified image Four new C~21~ steroidal glycosides with an acyl group at C(12) and a straight sugar chain at C(3), namely auriculosides I–IV (**1**–**4**, resp.), along with seven known steroidal derivatives, were isolated from the roots of __Cynanchum auriculatum__ Royle ex Wight. Th
## Abstract magnified image Two new glycosides, (3__β__,8__β__,9__α__,16__α__,17__α__)‐14,16__β__ : 15,20__α__:18,20__β__‐triepoxy‐16__α__,17__α__‐dihydroxy‐14‐oxo‐13,14 : 14,15‐disecopregna‐5,13(18)‐dien‐3‐yl __α__‐cymaropyranosyl‐(1→4)‐__α__‐digitoxopyranosyl‐(1→4)‐__α__‐oleandropyranoside (**1*