Abstract: Nine and seventeen compounds were isolated from bark of Gmelina arborea and Sambucus chinensis respectively.Compounds from Gmelina arborea were identified by physicochemical data and spectral analysis as apigenin (11),palmitic acid (12),specioside 6′OαDgalactopyranoside (13),stigmasterol (14),βsitosterol (15),osmanthuside J (16),luteolin4′Oβglucopyranoside (17),benzoic acid (18),tyrosol (19).Compounds 13,16,17 were obtained from Gmelina arborea for the first time.Compounds from Sambucus chinensis were identified as ursolic acid (21),teradecanoic acid (22),oleanolic acid (23),scopoletin (24),daucosterol (25),3′,5dyhydroxy4′methoxy flavone7OαLrhamnosyl(1→6)βDglucoside (26),chlorogenic acid (27),maltose (28),quercetin (29),cerebroside (210),3βhydroxylup12en28oic acid (211),α,βamyrin (212),nicotiflorin (213),1Hindole3carboxylic acid (214),luteolin (215),ferulic acid (216),ntritetracontan5αol (217).Compounds 26,28,210,211,213,214，217 were obtained from Sambucus chinensis for the first time.

Key words: barks of Gmelina arborea, Sambucus chinensis, Dai Medicine, chemical constituents