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New cucurbitacins from Phormium tenax and Marah oreganus |
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| Authors: | SMorris Kupchan Haim Meshulam Albert T Sneden |
| Institution: | Department of Chemistry, University of Virginia, Charlottesville, VA 22901, U.S.A. |
| Abstract: | Cucurbitacins I and D and two new cucurbitacins, isocucurbitacin D and 3-epi-isocucurbitacin D, were isolated from Phormium tenax. A new cucurbitacin, dihydroisocucurbitacin B, was isolated from Marah oreganus. The acid sensitivity of the 2β-hydroxy-3-keto system found in cucurbitacin D was demonstrated. |
| Keywords: | Liliaceae Cucurbitaceae isocucurbitacin D 3-epi-isocucurbitacin D dihydroisocucurbitacin B |
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