COC(=O)C1=C2N(Cc3ccccc3)C(C)=C(C(=O)OC)C(c3ccccc3)N2C(=O)[C@](O)(C(=O)OC)C1
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?