Two New Cytotoxic C-21 Steroidal Glycosides from the Root of Cynanchum auriculatum
✍ Scribed by Ru-Song Zhang; Yi-Ping Ye; Yue-Mao Shen; Hui-Ling Liang
- Book ID
- 108370816
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 91 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0040-4020
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## 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 Three new C~21~ steroidal glycosides with a cinnamoyl group at C(12) and a 2‐methylbutanoyl group at C(20), and a straight sugar chain at C(3), namely cyanoauriculosides C–E (**1**–**3**, resp.), together with three known steroidal derivatives, were isolated from the roots of __Cynanchu
## 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*
## 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