O=C1C[C@@H](O)[C@@H](O)[C@@H]2[C@@H]1CC[C@H]1C(=O)N(Cc3ccc4c(c3)OCO4)C(=O)[C@H]12
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?