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. 2014;16(7):759-63.
doi: 10.1080/10286020.2014.915816. Epub 2014 May 2.

Two new steroidal glycosides from Cynanchum wallichii

Ding Wang  1 , Wen-Hao Pan, Yong-Rui Bao, Xin-Xin Yang, Xian-Sheng Meng
Affiliations

Two new steroidal glycosides from Cynanchum wallichii

Ding Wang et al. J Asian Nat Prod Res. 2014.

Abstract

Two new C21 steroidal glycosides were isolated from Cynanchum wallichii Wight. Their structures were elucidated as caudatin-3-O-β-d-glucopyranosyl-(1 → 4)-β-d-oleandropyranosyl-(1 → 4)-β-d-cymaropyranosyl-(1 → 4)-β-d-digitoxopyranoside (1) and caudatin-3-O-β-d-glucopyranosyl-(1 → 4)-β-d-cymaropyranosyl-(1 → 4)-β-d-oleandropyranosyl-(1 → 4)-β-d-cymaropyranosyl-(1 → 4)-β-d-digitoxopyranoside (2) by spectroscopic methods including 1D and 2D NMR experiments.

Keywords: 2,6-dideoxy-pyranose; C21 steroidal glycosides; Cynanchum wallichii.

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