Schweinfurthins I and J fromMacaranga schweinfurthii^⊥

Demand for the experimental antineoplastic agent schweinfurthin A, for developmental testing, prompted it re-collection of leaf material of Macaranga schweinfurthii from the original collection site in Cameroon. During chromatographic purification of the organic solvent extract. analytical UPLC-PDA-TOFMS of stilbene-enriched fractions revealed the presence of six known schweinfurthins and two previously Unknown stilbenes. The structures of these new compounds, schweinfurthins I and J (1 and 2), were elucidated by 1D- and 2D-NMR techniques.