C=C/C1=C/Cc2ccccc2[C@H](C[N+](=O)[O-])C(C(C)=O)(C(=O)OC)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?