Abstract
Two new phenolic glycosides, named parishins F–G (1–2), together with known parishin E, were isolated from the rhizome of Gastrodia elata. The new structures were established as 1,3-di-[4-O-(β-d-glucopyranosyl) benzyl]-2-{4-O-[β-d-glucopyranosyl-(1 → 6)-β-d-glucopyranosyl] benzyl} citrate (1) and 2-[4-O-(β-d-glucopyranosyl)benzyl] citrate (2), by means of MS, 1D, and 2D NMR spectral analyses, as well as chemical methods.
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Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (Nos 81001629 and 30973873). The authors are grateful to Associate Professor Xiu-Mei Liu, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, for the measurements of NMR spectra.