CCN1C(=O)[C@H]2[C@@H](C)C3=C4C([C@H](C(=O)OC)C=C(C(=O)OC)C[C@H]4[C@H]2C1=O)C(CC)(CC)C3=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?