CC1CCCN(S(=O)(=O)c2cc3c4c(c2)C(C)C(=O)N4CCC3)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?