cant seem to get this right. please help

The poison gelsemoxonine can be isolated from the leaves of a plant native to southeastern Asia (Gelsemium elegans). A key step in a synthesis of this natural product involves a thermally initiated (70C) sigmatropic rearrangement of the compound shown below (R=protecting group) (J.Am. Chem. Soc. 2011, 133, 17634-17637). Draw the curved arrows for the mechanism of the formation of gelsemoxonine