CC(=O)Nc1ccc(C2C(C(=O)Nc3ccccc3C)=C(C)NC(C)=C2C(=O)Nc2ccccc2C)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?