[Studies on chemical constituents of Dendrobium crystallinum].
OBJECTIVE
To study the chemical constituents of Dendobium crystallinum.


METHODS
Compounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were identified by physicochemical properties and spectral analyses.


RESULTS
Nine compounds were obtained and identified as: 4, 4'-dihydroxy-3, 5-dimethoxybi-benzyl (1), gigantol (2), naringenin (3) , p-hydroxybenzoic acid (4), n-tetracosyl trans-p-cou-marate (5), n-octacosy trans-p-coumarate (6), n-hexacosyl trans-ferulate (7), stigmasterol (8), daucosterol (9).


CONCLUSIONS
All these compounds were obtained from this plant for the first time, compounds 1 and 4 were isolated firstly from the genus.
Wang
Lei
L
Department of Pharmnacognosy, China Pharmaceutical University, Nanjing 210038, China.
Zhang
Chao-feng
CF
Wang
Zheng-tao
ZT
Zhang
Mian
M
Shao
Li
L
Xu
Luo-shan
LS
D001632:Bibenzyls; D002845:Chromatography; D031667:Dendrobium / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry; D006139:Guaiacol / Q000031:analogs & derivatives / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D010226:Parabens / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry; D013265:Stigmasterol / Q000737:chemistry
D001632:Bibenzyls; D004365:Drugs, Chinese Herbal; D044950:Flavanones; D010226:Parabens; D012855:Sitosterols; C478099:gigantol; D006139:Guaiacol; D013265:Stigmasterol; C005273:naringenin; C038193:4-hydroxybenzoic acid; C011015:lyoniside