C=C1C(=O)O[C@H]2C1C[C@H](O)/C(C)=C/CC[C@@]1(C)O[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?