Abstract: 19 compounds were separated and purified from the ethyl acetate extracts in the alcohol solution of the Ligustrum lucidum bark silica gel and Sephadex LH-20 column chromatography.Their structures were identified as nicotinamide (1);D-allitol (2);p-hydroxybenzyl alcohol (3);Acetyloleanolic acid(4);benzoic acid (5);cimidahurinine (6);Borreriagenin (7);CVeratroylglycol (8);methyl-2-O-β-glucopyranosylbenzoate (9);3′,7-dihydroxy-4′-methoxyisoflavone(10);umbelliferone(11);caffeic acid methyl ester(12);oleanolic acid(13);(-)-chicanine(14);dillapiol(15);L-Epicatechin(16);2α-hydroxy-oleanolic acid (17);betulinic acid (18);Betulin(19),all the above compounds were isolated from the bark of Ligustrum lucidum for the first time,and compounds (4),(6),(10),(11),(13),(17),(18),(19) had been isolated from Ligustrum lucidum previously.

Key words: Ligustrum lucidum bark, extraction, isolation, structure identification