CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)N[C@@H](CO)[C@H](O)[C@@H]1C[C@@H]1C(=O)NC1CCCCC1
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?