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Chromone and phenanthrene alkaloids from Dennettia tripetala
Javier López-Martín1, Edet M Anam, Herminio Boira
1Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Valencia, Spain.
Chemical & Pharmaceutical Bulletin
|December 25, 2002
Abstract:
Dennettine, a new 2,6-dimethoxychromone and three known phenanthrene alkaloids (uvariopsine, stephenanthrine and argentinine) in addition to the phenolic and known compound vanillin were isolated from the roots of Dennettia tripetala. Their structures were determined by physical and spectroscopical one dimensional (1D) and 2D-NMR analysis, including heteronuclear multiple bond correlation and nuclear Overhauser enhancement spectroscopy.