Phenolic glycosides and lignans components in Curculigo orchioides Gaertn.

Objective:To isolate and identify phenolic glycosides and lignans from the rhizomes of Curculigo orchioides Gaertn.Methods:Phenolic glycosides and lignans were isolated by silica gel,Sephadex LH-20 chromatography and semi-preparative HPLC methods.The structures of the isolated compounds were identified by physiochemical and spectral analysis/Results:Five phenolic glycosides,one lignan and one sitosterol were isolated and identified from Curculigo orchioides Gaertn,namely,2,6-dimethoxy benzolic acid(1),curculigoside A(2),curculigoside B(3),curculigine A(4),4-dichlorine-5-hydroxyl-3-methylphenol-1-O-β-D-glucopyranosyl-(1→6)-β-D-gluco-pyranosede(5),3,3',5,5'-tetramethoxy-7,9':7',9-diepoxylignan-4,4'-di-O-β-D-glucopyranoside(6),and β-sitosterol(7).Conclusion:Seven compounds have been isolated from Curculigo orchioides Gaertn; compound 5 is a new chlorine-containing phenol,and is named as curculigine D.