Abstract:
The chemical constituents of
Zingiber officinale peel were isolated and purified by various chromatographic separation techniques such as Diaion HP-20, MCI Gel CHP-20, Sephadex LH-20, ODS, silica gel and semi-preparative HPLC. Seven terpenoids were identified by physicochemical properties and spectral data:(4
R,6
S)-1-(hydroxymethyl)-5,5-dimethylbicyclo3.1.1hept-2-en-4-ol (
1), 4-(hydroxymethyl)-1-isopropylcyclohex-2-ene-3,4-diol (
2), 3,5,6-trihydroxy-7-megastigmen-9-one (
3), 3-(3-hydroxybutyl)-2,4,4-trimethyl-2,5-cyclohexadien-1-one (
4), angelicoidenol (
5), grasshopper ketone (
6), and dihydrophaseic acid (
7), in which compounds
1,
2 are new compounds, named:(4
R,6
S)-1-(hydroxymethyl)-5,5-dimethylbicyclo3.1.1hept-2-en-4-ol and 4-(hydroxymethyl)-1-isopropylcyclohex-2-ene-3,4-diol, and compounds
3-
7 were obtained from this plant for the first time.