In addition to phebalosin and ramosin, the air-dried stem and root barks of Galipea trifoliata contain a third previously unreported coumarin identified as 7-isopentenyloxy-8-( trans -1′,2′-epoxy-3′-methyl-3′-butenyl)coumarin.

Erichsonine is a new indole alkaloid isolated from the stem bark of Strychnos erichsonii. Its structure has been established by spectral means and confirmed by X-ray crystallographic analysis. This is the first report of a vobasine-type alkaloid from the Loganiaceae.

From Almeidea guyanensis, besides N-methylatanine, N-methylflindersine, N-methylkhaplofoline and 4-demethyl-N-methylatanine, a new 2-quinolone, almeine, has been isolated and its structure elucidated as 4-isopropenyl-N-methyl-3,4-dihydrofuro-2-quinolone.