Macropodumines D and E, Two New Alkaloids with Unusual Skeletons from Daphniphyllum macropodumMiq.

Two new complex polycyclic alkaloids, macropodumines D (1) and E (2), both possessing unprecedented skeletons, along with four known related alkaloids, were isolated from the leaves and barks of Daphniphyllum macropodumMiq. The structures including the relative stereochemistry of new compounds 1and 2were elucidated on the basis of detailed spectroscopic data analysis. [ABSTRACT FROM AUTHOR]