CCOC(=O)CCN1C(=O)[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]2C1=O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?