Phosphatidylpyrrolophenanthridine alkaloids from Zephyranthes flava

Abstract

Four new alkaloidal phospholipids, 2-O-glycerophosphoryllycorine, phosphatidyllycorines, phosphatidylpseudolycorines and phosphatidyllycorinium methocation, were isolated from the flowers of Zephyranthes flava. The structures of these compounds were established by comprehensive spectral analyses, chemical transformations and synthesis, where possible. The biological profile of this novel group of alkaloidal conjugates is appraised. © 1987.