C=C(C)[C@@H]1CCC2=C[C@H](OC2=O)[C@@]2(C)C[C@@H]2c2cc(C)c(o2)[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?