Isolation of dihydroxylupene and dihydroxylupane from the bark of Lawsonia inermis |
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| Authors: | Tarakeswar Chakrabartty Gurudas Poddar Jan st. Pyrek |
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| Affiliation: | 1. Department of Internal Medicine, University of Texas Medical School, P.O. Box 20708, Houston, TX 77025, U.S.A. |
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| Abstract: | Two pentacyclic triterpenes isolated from the bark of henna were identified as 3β, 30-dihydroxylup- 20(29)-ene (hennadiol), and (20S)-3β, 30-dihydroxylupane. The assignment of the C-20 configuration in the latter compound was supported by the analysis of Eu(fod)3-induced 1H NMR chemical shifts in the two C-20 epimers synthesized from lupeol. |
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| Keywords: | Lythraceae henna triterpenoids 30-hydroxylupeol 30-hydroxylupanol. |
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