CC(=O)Nc1cccc(NC(=O)CS(=O)(=O)c2cn(CC(=O)N(C(C)C)C(C)C)c3ccccc23)c1
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?