Shamiminol: A new aromatic glycoside from the stem bark of Bombax ceiba

摘要

A new aromatic glycoside, shamiminol was isolated from the stem bark of Bombax ceiba along with the known constituents stigmasta-3,5-diene, lupenone, (±)-lyoniresinol 2a-O-β-D-glucopyranoside and opuntiol, obtained for the first time from this plant. The structure of shamiminol was elucidated on the basis of extensive 1D- and 2D-NMR spectroscopic and mass spectrometric studies as 3,4,5- trimethoxyphenol 1-O-β-D-xylopyranosyl-(1→2)-β- D-glucopyranoside (1).