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Chemical constituents of Marsdenia tenacissima

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Author:
No author available
Journal Title:
CHINESE TRADITIONAL AND HERBAL DRUGS
Issue:
2
DOI:
10.3321/j.issn:0253-2670.2009.02.005
Key Word:
通关藤;萝蘼科;牛奶菜属;Marsdenia tenacissima (Roxb.) Wight et Arn.;Asclepiadaceae;Marsdenia R.Brown

Abstract: Objective To study the chemical constituents in the stems of Marsdenia tenacissima. Methods Ten compounds were isolated and purified by silica gel column chromatography and Sephadex LH-20. The chemical structures of the compounds were elucidated by their physicochemical properties and spectral data, such as MS, IR, UV, ~1H-NMR, and ~(13)C-NMR. Results The compounds were obtained from the water extract of the plant. They were poke-weed cerebroside ( I ), methyl β-D-theveropyranosyl-(l→4)-β-D-cymaropyranoside (Ⅱ), 11α, 12β-acetonide-tenacigenin B (Ⅲ), conduritol A (Ⅳ), l-(4-hy-droxy-3-methoxyphenyl)-2-{ 2-methoxy-4-[l-(E)-propen-3-ol]-phenoxy}-propan-l, 3-diol ( V ), D-galacti-tol (Ⅵ), scopoletin (Ⅶ), marsectobiose (Ⅷ), daucosterol (Ⅸ), and amber acid (X). Conclusion Compounds I and V are isolated from the plants of Marsdenia R. Br. for the first time; Compounds Ⅱ, Ⅵ-Ⅶ, and X are isolated from the title plant for the first time.

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