CC(=O)O[C@H]1C[C@@H](OC(C)=O)[C@@](C)(O)[C@@H]2[C@@H](OC(C)=O)[C@@]3(O)[C@H](/C=C(/CO)[C@H]4O[C@H]4[C@@H](OC(C)=O)[C@@]12C)OC(=O)[C@@H]3C
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?