ervatamia coronaria/silica

OBJECTIVE To study the chemical constituents of Ervatamia hainanensis. METHODS The compounds were separated and purified by column chromatography with silica gel, and identified by IR, MS, NMR and 2D-NMR. RESULTS Five compounds were identified as I (isolariciresinol 9-O-beta-D-glucopyranoside), II

OBJECTIVE To investigate the chemical constituents of the rhizome of Ervatamia hainanensis. METHODS The solvent extraction and silica column chromatography were used to separate the chemical constituents, and their structures were identified by physico chemical properties and spectra

To inverstigate the alkaloids from the twigs and leaves of Ervatamia pandacaqui, eleven known alkaloids were isolated by silica gel, Sephadex LH-20, and ODS column chromatography, as well as RP-HPLC. Their structures were elucidated by UV, IR, MS, and NMR spectral data as coronaridine (1),