Gentiogenal, a conversion product of gentiopicrin (gentiopicroside)* |
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| Authors: | van der Sluis W G van der Nat J M Spek A L Ikeshiro Y Labadie R P |
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| Affiliation: | Farmaceutisch Laboratorium, sectie Farmacognosie Rijksuniversiteit Utrecht, The Netherlands. |
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| Abstract: | The structure of gentiogenal, (+/-)5-formyl-6-methyl-3,4-dihydro-1H,6H-pyrano-[3,4-c-]-pyran-1-one, a conversion product of the aglucone of gentiopicrin (gentiopicroside), isolated from BLACKSTONIA PERFOLIATA (Gentianaceae), was elucidated by (1)H- and (13)C NMR spectroscopic, mass spectrometric and X-ray diffraction methods. In a TLC bioassay gentiogenal showed fungitoxicity towards PENICILLIUM EXPANSUM. |
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