CCOC(=O)c1cnc2c(C)cc(C)cc2c1Nc1ccc(S(=O)(=O)Nc2ncccn2)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?