A new sesquiterpene lactone from root of Baccaurea ramiflora / 中草药

Objective To study the chemical constituents in the root of Baccaurea ramiflora.Methods Various chromatographic techniques were used to separate and purify the constituents.The structures of the compounds were elucidated by physicochemical properties and spectral analyses(UV,IR,ESI-MS,1H-NMR,13C-NMR,Dept90,Dept135,1H-1H COSY,1H-1H NOESY,HMQC,HMBC).Results A new compound was isolated and idertified.Conclusion This compound is a novel compound and named as epidihydrotutin.