Chemical Constituents from the Stems of Caesalpinia decapetala

ABSTRACTAIMTo study the chemical constituents from the stem of Caesalpinia decapetala.METHODSThe compounds were isolated by column chromatography using silica gel and Sephadex LH-20, and their structures were identified on the basis of spectral analysis.RESULTSSeven compounds were obtained from the ethanol extract and their structures were elucidated as 6′-hydroxy-3, 4-(1′′-hydroxy-epoxy-propane)-2′, 3′-(1′′β-hydroxy-2′′′-carbonyl-cyclobutane)-1, 1′-diphenyl (1), octacosyl 3, 5-dihydroxycinnamate (2), 2′, 4, 4′-trihydroxychalocone (3), bonducellin (4), 7, 3′, 5′-trihydroxyflavanone (5), daucosterin (6), and β-sitosterol (7).CONCLUSIONCompounds 1 and 2 are new compounds and 3-6 were obtained from this plant for the first time.