COc1cccc2c1[C@H](CO)N1[C@H](C#N)[C@@H]3C[C@H](C(=O)O)[C@@H]([C@@H]1C2)N3C
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?