Analysis of 1H-NMR fingerprint in stem of Dendrobium loddigesii.
- Author:
Hai-lin QIN
1
;
Jian-xin ZHANG
;
Zheng-tao WANG
;
Xiao-sheng YANG
;
Luo-shan XU
;
Xiao-jiang HAO
Author Information
- Publication Type:Journal Article
- MeSH: Benzyl Compounds; chemistry; isolation & purification; Bibenzyls; Dendrobium; chemistry; classification; Guaiacol; analogs & derivatives; chemistry; isolation & purification; Magnetic Resonance Spectroscopy; Molecular Structure; Plant Stems; chemistry; Plants, Medicinal; chemistry; Species Specificity
- From: China Journal of Chinese Materia Medica 2002;27(12):919-923
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo analyse the 1H-NMR finger-print of the stem of Dendrobium loddigesii.
METHODSilica gel column chromatography was used to separate the chemical constituents of SCE A of the stem of D. loddigesii. The characteristic signals of the H-NMR finger-print were analysed after determining the structures of the compounds isolated from SCE A.
RESULT1H-NMR finger-prints of the samples of D. loddigesii collected from different regions showed highly characteristic features and reproducibility. Four compounds predominant in SCE A were isolated and their structures were determined by spectral analysis as 1, 2, 3 and 4, respectively.
CONCLUSIONCompound 3 and 4 were isolated from D. loddigesii for the first time. The 1H-NMR finger-print of CGE A of the stem of D. loddigesii showed mainly the characteristic signals of the above four compounds and might be utilized for the original authentication of this plant.
