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Two new 3‐hydroxy‐3‐methylglutaric acid derived phenylpropanoid glucosides, tangshenoside V (1) and tangshenoside VI (2), were isolated from the roots of Codonopsis tangshen Oliv., along with the two known compounds tangshenoside I (3) and tangshenoside III (4). Their structures were elucidated by spectroscopic methods (IR and 1D‐ and 2D‐NMR) and by mass spectrometry (HR‐ESI‐MS).
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Song et al. (2008) studied this question.
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