C=C(C)[C@@H]1C[C@H]2O[C@](O)(C(=C)CC(=O)/C=C(/C)C[C@@H]3OC(=O)[C@]24O[C@@H]34)[C@H]1O
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?