Larvicidal Activity against and Chemical Characterization of the Inflorescences of .

The crude acetone extract (CAE) of defatted inflorescences of was partitioned into five semipurified fractions: -hexane (HF), dichloromethane (DF), ethyl acetate (EAF), -butanol (BF), and aqueous (AQF). BF was fractionated by reversed-phase polyamide column chromatography, obtaining 34 subfractions, which were subjected to HSCCC, where patuletin and patulitrin were isolated. CAE and the fractions BF, EAF, DF, and AQF were analyzed by LC-DAD-MS, and patuletin and patulitrin were determined as the major substances in EAF and BF, respectively.