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A new glycoside from Alpinia officinarum
Ning An1, Jia Lin, Shi-lin Yang
1Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing.
Aim:
To investigate the glycosidic constituents in the rhizomes of Alpinia officinarum Hance.
Methods:
The isolation and purification of glycosides were done with column chromatography on macro porous resin, polyamides and Sephadex LH-20, whilst the structure elucidation was done by HRCI-MS and NMR (1D and 2D) methods.
Results:
A glycosidic ester identified as 4'-hydroxy-2'-methoxyphenol-beta-D-{6-0-[4"-hydroxy-3", 5"-dimethoxy (benzoate)]}-glucopyranoside (I), along with a known compound n-butyl-beta-D-fructopyranoside (II), were isolated and characterized.
Conclusion:
I was found to be a new compound, named as alpinoside A, whilst II was isolated from the genus Alpinia for the first time.
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