An aporphinoid alkaloid from Pseuduvaria macrophylla

Abstract Chromatographic separation of the alkaloid fraction of the methanol extract from the stem bark of Pseuduvaria macrophylla resulted in the isolation of a new aporphinoid alkaloid, 1,2,3-trimethoxy-4,5-dioxo-6a,7-dehydroaporphine, together with possibly the known O -methylmoschatoline.