Phenolic Acid Glycosides From Parmentiera cereifera Seem (Candle Tree)

Two new phenolic acid glycosides, parmentins A (1) and B (2) were isolated from the methanolic extract of the leaves and stems of candle tree (Parmentiera cereifera Seem). These compounds were accompanied by a mixture of b-sitosterol and stigmasterol (3), b-sitosterol glucoside (4), isovanillic acid (5), vanillic acid (6), and p-hydroxybenzoic acid (7). The structures of the isolated compounds were determined on the basis of physical and spectroscopic analyses, including 1D and 2D NMR (1H, 13C, COSY, HSQC and HMBC) and mass spectrometry (HR-ESI-MS).