O=C1[C@H]2CC[C@@H]3/C(=N\OC[C@@H](O)COCc4ccco4)C[C@@H](O)[C@@H](O)[C@@H]3[C@@H]2C(=O)N1c1cccc(Oc2ccccc2)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?