C[C@@H]1C(=O)CC2C(C)(C)CCC[C@]2(C)[C@@]12CC[C@]1(C=COC1)O2
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?