Extractives from Cedrela odorata L. The structure of methyl angolensate

Abstract

The constituents of the heartwood of Cedrela odorata are variable. The structure of methyl angolensate, one of the components, is elucidated on the basis of spectroscopic evidence and chemical transformations. It is a secoring-B tetranortriterpenoid closely related biogenetically to gedunin and deacetyl-7-keto-gedunin, which are also found in the heartwood.