<jats:title>Abstract</jats:title><jats:p>From the aerial parts of <jats:italic>Aconitum cochleare</jats:italic> <jats:sc>Woroschin,</jats:sc> two new norditerpenoid alkaloids named aconitilearine (<jats:bold>1</jats:bold>) and <jats:italic>N</jats:italic>‐deethylmethyllycaconitine (<jats:bold>2</jats:bold>) were isolated along with the eight known norditerpenoid alkaloids <jats:bold>3</jats:bold>–<jats:bold>10</jats:bold>. The structures for the new compounds were established on the basis of <jats:sup>1</jats:sup>H, <jats:sup>13</jats:sup>C, DEPT, homonuclear <jats:sup>1</jats:sup>H,<jats:sup>1</jats:sup>H‐COSY, NOESY, HSQC, and HMBC NMR studies.