De las hojas frescas de Trattinickia rhoifolia Willd. fueron aislados los componentes mayoritarios: amentoflavona, ß-sitosterol, 5a,6a- y 5ß,6ß-epoxi-ß-sitosteroles y nonacosano. Sus estructuras fueron determinadas por métodos espectroscópicos uni- y bidimensionales y síntesis parcial.63-66carmelor@ula.vecuatrimestreAmentoflavone, ß-sitosterol, 5a,6a- and 5ß,6ß-epoxy-ß-sitosterols, and nonacosane have been isolated as major constituents from fresh leaves of Trattinickia rhoifolia Willd. Its structures were determined by 1D- and 2D spectroscopic methods and partial synthesis.