COc1ccc(O[C@H]2C=C[C@@H](c3ccccc3)O[C@H]2CO/N=C(/C)CCC(=O)OC[C@@H]2O[C@H](c3ccccc3)C=C[C@@H]2Oc2ccc(OC)cc2)cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?