Abstract:
Two undescribed terpene glycosides and two compounds were isolated from the
n-butanol fraction of Alpiniae Oxyphyllae Fructus by using various chromatographic methods, including MCI Gel, Sephadex LH-20, ODS, silica gel and semi-preparative HPLC. The structures of the isolated compounds were identified by spectroscopy methods (1D, 2D NMR, UV, IR, MS, etc.), and the absolute configuration of the compound
1 was determined by ECD calculation and acid hydrolysis. Compounds
1 and
2 are new compound, and compounds
3 and
4 were isolated from Alpiniae Oxyphyllae Fructus for the first time.