Study on chemical constituents from Lactuca indica

Objective: To study the chemical constituents from Lactuca indica. Method: The compounds were isolated with silica gel column chromatography and their structures were elucidated on the basis of chemical evidences and spectral analysis (EI MS, 1H NMR, 13 C NMR). Result: 13 compounds were identified as hexacosanol (1), β amyrin (2), p hydroxymethyl benzoic acid (3), β sitosterol (4), luteolin (5), oleanlic acid (6), α amyrin (7), apigenin (8), daucosterol (9), quercetin (10), quercetin 3 O glucoside (11), apigenin 7 O glucopyranside (12), apigenin 7 O glucoside (13). Conclusion: Compound (1), (3), (6), (12)were isolated for the first time from the title plant.