COc1ccc(CC2(C)OC(c3ccc(C)c([N+](=O)[O-])c3)=NN2C(C)=O)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?