NC(=O)CC(NC(=O)Cc1ccc(Cl)cc1)c1ccc(NC2CC3CCC2C3)c([N+](=O)[O-])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?