CC(=O)O[C@@H]1c2oc(cc2C)[C@H]2O[C@]2(C)C[C@H]2C=C(C(=O)O2)[C@H](OC(C)=O)CC1[C@@]1(C)CO1
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?