CC[C@@H]1C(c2ccccc2)=NN(c2ccc(Br)cc2)[C@H]1C(=O)N1CCOC1=O
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?