RESUMO
Objective: To study the chemical constituents from Sibiraea laevigata. Methods: The compounds were isolated by column chromatography and their structures were elucidated through spectroscopic analysis (NMR). Results: Twelve compounds were isolated and identified with spectral analysis and compared with authentic samples as lauric acid 1-monoglyceride (1), n-nonane (2), ethyl caffeate (3), isoferulic acid (4), methyl ferulic acid (5), p-methoxy cinnamic acid (6), ω-hydroxypropiovanillone (7), 3-hydroxy-1-(4-hydroxy-3, 5-dimethoxyphenyl)-1-propanone (8), (+)-pinoresinol (9), bis (2-ethylhexyl) phthalate (10), 9α- hydroxymedioresinol (11), and C-veratroylglycol (12). Conclusion: All compounds are found from the plant for the first time, and compounds 9-12 are found from the plants of Sibiraea Maxim. for the first time. The results provide the new chemical evidences for the bioactive investigation of this plant.