A novel diterpene from Caesalpinia minax / 中草药

Objective To study the chemical constituents of Caesalpinia minax.Methods The chemical constituents were isolated and purified by various chromatographic methods and their structures were elucidated by the analysis of spectral data and physicochemical properties.Results One diterpene compound was isolated from the 95% alcohol extract of C.minax,which was named minaxin A,and the inhibitoryactivitiesofthecompoundonHepG2cellwerestudiedbyuseofMTTmethod.ConclusionMinaxin A is a new compound and shows the significant inhibitory activities on HepG2 cell.