O=C1C2C(C(=O)N1CCN1CCN(Cc3ccc([N+](=O)[O-])cc3)CC1)[C@H]1C=C[C@@H]2C1
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?