Three new 18,19-seco-ursane glycosides from Elsholtzia bodinieri |
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| Institution: | 1. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, PR China;2. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China;3. Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA;4. Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan;1. Crop Protection Chemicals Division (Organic Chemistry-II), CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India;2. Center for Nuclear Magnetic Resonance, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India;1. Laboratory of Organic and Bio-Chemistry, Department of the Science for Structures of Matter and Technology, Félix Houphouët Boigny University, Cote d’Ivoire;2. Laboratory of Organic Structural Chemistry, Department of the Science for Structures of Matter and Technology, Félix Houphouët Boigny University, Cote d’Ivoire;3. Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana;4. Laboratory of Galenics, Department of Pharmaceutical Science, Félix Houphouët Boigny University, Cote d’Ivoire;5. Laboratory of Pharmacognosia, CNRS UMR 8076 BioCIS, LabEX LERMIT, Faculty of Pharmacy, Univ. of Paris Sud, France |
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| Abstract: | Chromatographic separation of an extract of the aerial part of Elsholtzia bodinieri resulted in the isolation of three new 18,19-seco-ursane glycosides, bodiniosides E-G (1–3). Their structures were elucidated as 2α,12β,23-trihydroxy-3-(β-d-glucopyranosyl)-19-oxo-18,19-seco-urs-13(18)-en-28-O-β-d-glucopyranosyl ester (1), 3-β-d-glucopyranosyl-19-β-d-glucopyranosyl-12β,21-dihydroxy-18,19-seco-urs-13(18)-en-28-oic acid (2), and 2α,12β,21-trihydroxy-3-β-d-glucopyranosyl-19-β-d-glucopyranosyl-18,19-seco-urs-13(18)-en-28-oic acid (3), respectively, by extensive NMR techniques, including 1D- and 2D-NMR experiments, as well as comparing with spectral data with those of the known analogues. |
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| Keywords: | Lamiaceae |
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