Description
This oxodibenzoquinoline alkaloid occurs in Lysichiton camtschatcense Schott
var. japonicum Makino. Being a fully conjugated molecule, the alkaloid is
coloured, yielding yellow needles when crystallized from EtOH. The ultraviolet
spectrum in neutral solution (EtOH) has absorption maxima at 235, 270, 307
and 400 mil. In acid solution (EtOH-O.l N/HCl), the absorption maxima occur at
249,276,306 and 453 mil. The structure has been established by synthesis as
1 :2-dimethoxy-7-oxodibenzo[de, gj quinoline.
