Chemical Constituents of Millettia speciosa / 中草药·英文版

Objective: To study the chemical constituents from Millettia speciosa. Methods: The compounds were isolated and purified by silica gel, Sephadex LH-20, ODS column chromatography, and recrystallization. The structures were identified using physicochemical and spectral data. Results: Thirteen compounds were isolated from M. speciosa and identified as docosanoic acid (1), tetracosane (2), octadecane (3), hexacosanoic acid (4), β-sitosterol acetate (5), β-sitosterol (6), syringin (7), maackiain (8), formononetin (9), ψ-baptigenin (10), rotundic acid (11), pedunculoside (12), and daucosterol (13). Conclusion: Compounds 5, 7, and 10-12 are obtained from this plant for the first time.