[Study on chemical constituents from stem of Dendrobium aphyllum].
OBJECTIVE
To study the active constituents of Dendrobium aphyllum.


METHODS
Various chromatographic techniques were used to isolate and purify the constituents, their physico-chemical properties and spectral data are determinated to elucidate the structure.


RESULTS
Eight compounds were isolated and identified as: 4'-methoxyl-tricin (1), tricin (2), 7, 3', 5'-tri-O-methyl-tricetin (3), syringic acid (4), ( + )-syring-aresinol (5), D-allitol (6), sucrose (7), icariside D2 (8).


CONCLUSIONS
Compounds 1-3, 6-8 were isolated from genus Dendrobium for the first time, additionally, the others were obtained firstly from the plant.
Department of Pharmacognosy, China Pharmaceutical University, Nanjing 210038, China.
Li
L
Shao
Wei-hua
WH
Huang
Chao-feng
CF
Zhang
Lei
L
Wang
Mian
M
Zhang
Zheng-tao
ZT
Wang
D031667:Dendrobium / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry; D005663:Furans / Q000737:chemistry; D005707:Gallic Acid / Q000031:analogs & derivatives / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry; D017705:Lignans / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D018547:Plant Stems / Q000737:chemistry*; D013395:Sucrose / Q000737:chemistry; D013402:Sugar Alcohols / Q000737:chemistry
D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D005663:Furans; D005960:Glucosides; D017705:Lignans; D013402:Sugar Alcohols; C042192:syringaresinol; D013395:Sucrose; D005707:Gallic Acid; C527823:allitol; C017769:tricin; C001945:syringic acid