A new patchoulane-type sesquiterpenoid glycoside from the roots of <i>Croton crassifolius</i>

<p>A new patchoulane-type sesquiterpenoid glycoside (<b>1</b>), together with five known sesquiterpenoids (<b>2</b>–<b>6</b>), was isolated from the roots of <i>Croton crassifolius.</i> Their structures were elucidated on the basis of spectroscopic methods. This is the first report about the sesquiterpenoid glycoside from <i>C. crassifolius.</i> All the isolated compounds <b>1</b>–<b>6</b> were evaluated for their cytotoxic activities against human tumour cell lines HL-60 and A549, but none showed significant activity.</p>