[Study on the chemical constituents of Curcuma phaeocaulis]

To investigate the chemical constituents of the rhizome of Curcuma phaeocaulis Val.The constituents were isolated by column chromatography and their structures elucidated by chemical properties and spectroscopic analysis.Five compunds have been isolated and identified as isocurcumenol, curcumenol, alpha-spinasterol, curcumin, and beta-sitosterin-3-O-glucoside.alpha-Spinasterol and alpha-stediol were isolated from Curcuma phaeocaulis Val. for the first time.