CC(=O)Nc1ccc(C(=O)N(C)C(C(=O)Nc2ccccc2)c2ccccn2)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?