Obtusastyrene and obtustyrene,cinnamylphenols from Dalbergia retusa |
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| Authors: | Michael Gregson WDavid Ollis Brian T Redman Ian O Sutherland HH Dietrichs Otto R Gottlieb |
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| Institution: | 1. Department of Chemistry, The University, Sheffield S3 7HF, England;2. Institut für Holzchemie, Bundesforschungsanstalt für Forst- und Holzwirtschaft, Hamburg, Germany;3. Instituto de Química, Universidade de São Paulo, c.p. 20780, São Paulo, Brasil |
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| Abstract: | The heartwood of Dalbergia retusa contains, in addition to 8-O-methylretusin, (R)-4-methoxydalbergione, (R)-obtusaquinol and (+)-obtusafuran (2R,3R)-2-phenyl-3-methyl-2,3-dihydro-5-hydroxy-6-methoxybenzofuran], the cinnamylphenols obtusastyrene E-1-(4-hydroxybenzyl)-2-phenylethylenel, obtustyrene E-1-(4-hydroxy-2-methoxybenzyl)-2-phenylethylene] and obtusaquinone styryl-5-hydroxy-2-methoxy-4-quinonemethide]. The structural determination of compounds relied on spectra, degradations and syntheses. |
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| Keywords: | Leguminosae-Lotoideae isoflavonoids neoflavonoids cinnamylphenols 2-aryl-3-methyl-2 3-dihydrobenzofuran |
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