| Popis: |
Two novel ionosides were isolated from the whole plants of the Nigerian variety of Corchorus olitorious L. (Tiliaceae). The structures were elucidated through the data generated from NMR (1 and 2 D experiments), ESI MS and low energy-induced dissociation tandem mass spectrometry (TOF MSMS) as 3-O-β-glucopyranosyl-5, 6, 9-trihydroxyionol (Corchoionoside D, 1) and 3-O-β-glucopyranosyl-6, 9-dihydroxyionol (Corchoionoside E, 2). These compounds are reported for the first time in this plant.Keywords: Corchorus olitorious, Tiliaceae, ionoside, megastigmane, leafy vegetables |
