Rollinicin and isorollinicin, cytotoxic acetogenins from Rollinia papilionella

Rollinicin and isorollinicin, two new linear acetogenins bearing bistetrahydrofuran moieties and an α,β-unsaturated-γ-lactone, were isolated from roots of Rollinia papilionella. The structure elucidation of rollinicin and isorollinicin was achieved through interpretation of the 1H NMR, 13C NMR and high resolution mass spectra.