Zhongguo Zhongyao Zazhi 2009-Aug
[A new phenylethanoid glucoside from Lagotis brevituba].
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OBJECTIVE
To study the chemical constituents of Lagotis brevituba.
METHODS
The chemical constituents were isolated and purified by silica gel column chromatography, polyamide column chromatography, and semi-preparative HPLC, and their structures were elucidated on the basis of analysis of IR,NMR, 2D-NMR, and MS spectra.
RESULTS
Two compounds were obtained and were identified as phenylethanoid glucosides, lagotiside A (1) and acteoside (2), respectively.
CONCLUSIONS
Compound 1 is a new compound and named as lagotiside A.