CC[C@@]12C(=O)N(c3cccc(Cl)c3)C(=O)N1[C@H](c1ccc(Br)cc1)[C@@H]1C(=O)N(C(C)(C)C)C(=O)[C@@H]12
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?