C=C(C)C(=O)O[C@@H]1C[C@@]2(C)O[C@@H]2C[C@H](O)/C(C)=C/[C@H]2OC(=O)C(=C)[C@@H]21
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?