COC(=O)[C@@H](NC(=O)N(Cc1ccccc1)C[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)OC(C)(C)C)C(C)C)C(C)C
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?