Terpenoids from the barks of <i>Magnolia maudiae</i> (Dunn) Figlar

<p>A new germacrenolide (<b>1</b>) and fourteen known terpenoids (<b>2–15</b>) were isolated from the barks of <i>Magnolia maudiae</i> (Dunn) Figlar (Magnoliaceae). The structure of (7<i>α</i>H,11<i>β</i>H)-2<i>α</i>,8<i>α</i>-dihydroxy-4<i>α</i>,5<i>β</i>-epoxy-germacr-1(10)-en-6<i>α</i>,12-olide (<b>1</b>) was elucidated by physical and spectroscopic data analysis, including 1D, 2D NMR and HR-ESI-MS. Lyratol F (<b>9</b>) was isolated from <i>Magnolia</i> for the first time. The structures of known compounds were established by comparing their spectroscopic data with those in literatures.</p>