Phenols and flavonoids from the aerial part of Euphorbia hirta

AIM: To investigate the chemical constituents of the aerial part of Euphorbia hirta Linn. METHODS: The chemical constituents were isolated and purified by various chromatographic techniques, and their structures were elucidated on the basis of spectroscopic analysis. RESULTS: Nine compounds were isolated and identified as scopoletin (1), scoparone (2), isoscopoletin (3), quercetin (4), isorhamnetin (5), pinocembrin (6), kaempferol (7), luteolin (8), gallic acid (9). CONCLUSION: Among them compounds 1-3, 5-8 were found from this plant for the first time.