CC(C)C(NC(=O)C(Cc1ccccc1)NC(=O)[C@H]1CCC[C@H]1NC(=O)C(Cc1ccc(OC(C)(C)C)cc1)NC(=O)OC(C)(C)C)C(N)=O
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?