Three decomposition products of valepotriates from <i>Valeriana jatamansi</i> and their cytotoxic activity

<div><p>Three new decomposition products of valepotriates, valtrals A–C (<b>1</b>–<b>3</b>), and two known products, baldrinal and homobaldrinal, are formed during the isolation procedure of the ethanol extract of the whole plants of <i>Valeriana jatamansi</i>. Their structures were determined by spectroscopic methods including IR, MS, 1D, and 2D NMR experiments. Compounds <b>1</b>–<b>3</b> showed selective cytotoxicity against metastatic prostate cancer (PC-3M) and colon cancer (HCT-8) cell lines.</p>