To isolate and characterize chemical compounds of biological importance from the whole
plant of Dendrobium hongdie
The whole plants of Dendrobium hongdie
was extracted with ethanol (EtOH) and separated
using silica gel, Sephadex LH-20 and MCI gel to isolate the pure compounds. Characterization of the
isolated compounds was achieved using 1
H and 13
C nuclear magnetic resonance spectroscopy (NMR)
and mass spectrometry (MS).
Nine compounds including two phenanthrenes, three bibenzyls, a phenanthraquinone, two
lignans and a sterol were isolated from the extract. The structures of the compounds were elucidated as
nudol (1), gigantol (2), batatasin III (3), tristin (4), moscatin (5), ephemeranthoquinone (6), (-)-
syringaresinol (7), liriodendrin (8) and β-sitosterol (9).
Nine compounds have been successfully isolated from D. hongdie
for the first time. This
plant is a potential source of some useful phytochemicals.