A new ellagic acid derivative from Polygonum runcinatum

@article{Zhou2015ANE,
  title={A new ellagic acid derivative from Polygonum runcinatum},
  author={Zhi-Hong Zhou and Minzhuo Liu and Meng-Hua Wang and Wei Qu and Jian-bo Sun and Jing-yu Liang and Fei-hua Wu},
  journal={Natural Product Research},
  year={2015},
  volume={29},
  pages={795 - 799}
}
A new ellagic acid derivative, 3,3′-dimethylellagic acid-4′-O-(6″-galloyl)-β-d-glucoside, named runcinatside (5), together with four known compounds 3,3′-dimethylellagic acid (1), 3,3′,4′-trimethylellagic acid (2), 3,3′-dimethylellagic acid-4′-O-β-d-glucoside (3) and 3-methylellagic acid-4′-O-α-l-rhamno-pyranoside (4), was isolated from the roots of Polygonum runcinatum Buch.-Ham. ex D.Don Var. sinense Hemsl and the structures of these compounds were established by spectroscopic methods and… 
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