CN1CCN(S(=O)(=O)c2ccc(NC(=O)Cc3ccc([N+](=O)[O-])cc3)cc2)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?