CC[C@H](C)[C@@H](NC(=O)O[C@@H]1C(=O)c2cc(Br)ccc2O[C@H]1c1cccc(OC)c1)C(=O)OC
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?