Laboratoire de Pharmacognosie, U.A. 496 C.N.R.S., Faculté de Pharmacie, 92290 Châtenay-Malabry, France
Abstract:
Pentouregine, isolated from the leaves of Guatteria ouregou, is the first aporphine alkaloid with a 1, 11-methyleneoxy bridge found in an Annonaceae. Its structure has been elucidated by means of spectral analysis.