COc1ccc(CNC(=O)C[C@H]2C(=O)N(Cc3ccc(OC)cc3)C[C@@H]2Cc2ccccc2)cc1
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?