CC/C=C\[C@H](O)[C@H](O)C1=C(C)C(=O)[C@]2(O1)C(=O)N[C@@](OC)(C(=O)c1ccccc1)C2O
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?