COc1ccc(C(=O)Nc2nc3c(s2)CCCC3)cc1S(=O)(=O)N1CCCc2ccccc21
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?