C=C1C(=O)[C@@]23CC[C@H]4[C@@]5(CCC[C@@]4(C)C(=O)O5)[C@@]2(C)CC[C@@H]1C3
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?