A new C(21) steroid glycoside from Marsdenia tenacissima

A new C(21) steroid glycoside, 11 alpha-O-tigloyl-12-beta-O-acetyl tenacigenin B 3-O-beta-D-glucopyranosyl-(1 -> 4)- beta-D-glucopyranosyl-(1 -> 4)-3-O-methyl-6-deoxy-beta-D-allopyranosyl-(1 -> 4)-beta-D-oleandropyranoside (1), named tenacissoside N was isolated from the stems of Marsdenia tenacissima. The structure of the glycoside was identified by HR-ESI-MS and NMR spectra. (c) 2008 Ya Wei Zhou. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.Chemistry, MultidisciplinarySCI(E)中国科技核心期刊(ISTIC)0ARTICLE4444-4461