THREE CHROMONES FROM BULBS OF PANCRATIUM BIFLORUM

Article abstract of DOI:10.1016/0031-9422(80)85074-6

Two polyoxygenated chromones, 5,7-dihydroxy-2-methylchromone (1) and 5,6-dihydroxy-7-methoxy-2-methylchromone (2), and a glucosyloxychromone, 7-glucosyloxy-5-hydroxy-2-methylchromone (3), have been isolated from an extract of the bulbs of Pancratium biflorum collected when the plants were in flower.The compounds were characterized by chemical transformation, comprehensive spectral evidence and synthesis. 2 and 3 are naturally occurring chromones, while 1 has been detected only once before in Daucus carota roots, as a stress metabolite. - Key Word Index: Panacratium biflorum; Amaryllidaceae; bulb; polyoxygenated chromones; 5,7-dihydroxy-2-methylchromone; 5,6-dihydroxy-7-methoxy-2-methylchromone; glucosyloxychromone; 7-glucosyloxy-5-hydroxy-2-methylchromone; chromone-metal complex.