COc1ccc([C@@H]2[C@@H]3C(=O)N(C(C)(C)C)C(=O)[C@@H]3[C@]3(Cc4ccccc4)C(=O)N(c4cccc(Br)c4)C(=O)N23)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?