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Three New Steroidal Glycosides from the Roots of Cynanchum auriculatum

✍ Scribed by Yu Lu; Hui Xiong; Hong Li Teng; Guang Zhong Yang; Zhi Nan Mei

Publisher
John Wiley and Sons
Year
2011
Tongue
German
Weight
178 KB
Volume
94
Category
Article
ISSN
0018-019X

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✦ Synopsis

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 Cynanchum auriculatum (Asclepiadaceae). Their structures were determined by spectroscopic analyses and chemical methods. The known constituents were identified as wilfoside K1N (4), cynanauriculoside II (5), and auriculoside IV (6).

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