New derivatives from the aerial parts of Boerhaavia diffusa L. (Nyctaginaceae) |
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| Authors: | Thi My Lien Do Anh Vu Truong Thi Nga Vo Travis G. Pinnock Lawrence M. Pratt Dominique Guillaume Kim Phi Phung Nguyen |
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| Affiliation: | 1. Department of Organic Chemistry, University of Science, National University – Ho Chi Minh City, 227 Nguyen Van Cu Street, District 5, 748355 Ho Chi Minh City, Viet Nam;2. Department of Chemical–Food Technology, University of Technical Education – Ho Chi Minh City, 1 Vo Van Ngan Street, Thu Duc District, 720214 Ho Chi Minh City, Viet Nam;3. Department of Physical, Environmental and Computer Sciences, Medgar Evers College, The City University of New York, 1650 Bedford Avenue, Brooklyn, NY 11225, United States;4. School of Pharmacy, 51 Rue Cognacq Jay, 51100 Reims, France |
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| Abstract: | Boerhaavia diffusa L. is used in the traditional medicine of several Asian countries. The isolation and identification of five new compounds, together with 11 known compounds, from the ethyl acetate extract of the aerial part of B. diffusa grown Vietnam is reported. The structure of the new compounds was established by 1D and 2D NMR spectroscopy, and high resolution ESI-MS analysis. New compounds are two rotenoids: 9,11-dihydroxy-6,10-dimethoxy[1]benzopyrano[3,4-b][1]benzopyran-12(6H)-one (boeravinone P, 3) and 3-[2-(β-d-glucopyranosyloxy)-3-hydroxyphenyl]-5-hydroxy-2-hydroxymethyl-7-methoxy-6-methyl-4H-1-benzopyran-4-one (boeravinone Q, 9), an atropisomeric mixture of two rotenoid glycosides (3′,5-dihydroxy-2-hydroxymethyl-7-methoxy-6-methylisoflavone 2′-O-β-d-glucopyranoside, 11), a sesquiterpene lactone (4,10-dihydroxy-8-methoxyguai-7(11)-en-8,12-olide, 5) and a new phenylpropanoid glycoside (boerhaavic acid, 15). |
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| Keywords: | Rotenoid Sesquiterpene lactone Phenylpropanoid |
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