The leaves of Metrodorea flavida have afforded the new coumarin, xy-3-
methylbutylloxy)-6,7-methylenedioxy-coumarin, in addition to several k
nown furocoumarins, a furofuran lignan, sitosterol and lupeol. Their s
tructures were elucidated on the basis of spectral data. Copyright (C)
1996 Elsevier Science Ltd