Dagne Ermias (Professor)Kassaye Hanna2018-06-202023-11-092018-06-202023-11-092014-10http://etd.aau.edu.et/handle/12345678/1952Column chromatographic fractionation of the EtOH extract of the wood of “Jimma Enchet” afforded two secoiridoids (ligstroside and oleuropein), one lignan (olivil 4-O-β-D-Glucoside), and two sugars (sucrose and mannitol). The structures of these compounds were established using physical (melting point) and spectroscopic data such as NMR (1D and 2D), UV and IR. In addition some mixtures of aldehydes were also identified. Key Words: Jimma Enchet, secoiridoids, lignan, sugars, NMR.enJimma Enchet; secoiridoids; lignan; sugars; NMR.Thesis