Publication Date:
2018-03-28
Description:
A novel norneolignan glycoside (1), categorized as an unusual 7-noraryl-4′,7-epoxy-8,5′-neolignan glycoside, four new phenolic glycosides (2–5), and a known neolignan glycoside (6) have been isolated from the ethanolic extract of the stems ofViburnum fordiaeHance. Dried stems ofV. fordiaewere extracted with 95% ethanol, and the concentrated extract was portioned successively with petroleum ether, ethyl acetate andn-butanol. Then-butanol portion was subjected to the macroporous resin HPD-100, silica gel, octadecyl SiO2, MCI gel and Sephadex LH-20 columns to obtain six compounds. Their structures including absolute configurations were determined by spectroscopic data [1H and13C nuclear magnetic resonance (NMR), total correlation spectroscopy (TOCSY), heteronuclear single quantum coherence (HSQC), heteronuclear multiple-bond correlation (HMBC) and optical rotatory dispersion (ORD)] and chemical methods.
Print ISSN:
0018-3830
Electronic ISSN:
1437-434X
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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