COc1ccc(CNc2nc(NCc3ccc(OC)cc3)n(C(=O)c3ccccc3[N+](=O)[O-])n2)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?