CCOC(=O)[C@@]12C(C)=CC(=O)O[C@]1(C)C1C(=O)NC(=O)C12
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?