CCOC(=O)[C@@]1(C#N)[C@@H]2C=CC(C(N)=O)=CN2[C@@H](C(N)=O)[C@@H]1c1cccc(Cl)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?