Megastigmane Glucosides and Megastigmanes from the Leaves of Meliosma lepidota ssp. squamulata

摘要

From the leaves of Meliosma lepidota ssp. squamulata , megastigmane glucosides with spiro -structures and megastigmanes were isolated. Their structures were determined by X-ray crystallographic analyses and spectroscopic investigation. The absolute structures of the megastigmanes were determined by the modified Mosher’s method.