C=C1C(=O)O[C@H]2[C@@H](O)/C(C)=C/C(=O)/C=C(/C)C[C@H](OC(=O)/C(C)=C/C)[C@@H]12
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?