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Abstract
A new intact resin glycoside (3) and two glycosidic acids (1 and 2), all having a common trisaccharide moiety and (11S)-hydroxytetradecanoic acid or (3S,11S)-dihydroxytetradecanoic acid as the aglycone, were obtained from the roots of Porana duclouxii. Their structures were elucidated by spectroscopic analyses and chemical correlations. These compounds represent the first examples of resin glycosides from the genus Porana.
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Acknowledgements
This work was supported by the National Nature Science Foundation of China (No. 31071715) and the Youth Innovation Foundation of Hunan Agricultural University, China (No. 12YJ07).