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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 7
BKCSDE 33(7)
July 20, 2012 

Two New Bibenzyl Glucosides from Dendrobium chrysotoxum
Fa-Wu Dong, Huai-Rong Luo, Qin-Li Wan, Feng-Qing Xu, Wei-Wei Fan, Kai-Jin Wang, Ning Li*, Jiang-Miao Hu*
Dendrobium chrysotoxum, Orchidaceae, Bibenzyl glucosides, AChE and BChE
Two new bibenzyl glucosides, 3,3',4',5-tetramethoxybibenzyl-4-O-β-D-glucopyranoside (1) and 3,4,4',5- tetramethoxybibenzyl-3'-O-β-D-glucopyranoside (2), together with five known ones, chrysotobibenzyl (3), erianin (4), chrysotoxine (5), gigantol (6) and tristin (7) were isolated from the stems of Dendrobium chrysotoxum. The structures of those compounds were elucidated by extensive spectroscopic analysis. Moreover, compounds 1-7 were assessed for inhibitory activity of two enzymes-AChE (acetylcholine esterase) and BChE (butyrylcholine esterase).
2247 - 2250
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