CNC1=CC(=O)C2=C(C1=O)[C@H]1CC[C@]3(C)C(=O)CC[C@H]3[C@@H]1CC2
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?