COc1ccc(C)cc1NS(=O)(=O)c1cc(Br)cc2c1N(C(C)=O)C(C)C2
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?