CC(C1OC(C)(C)C(O)C1O)C1CC[C@@]2(C)C3=CCC4C(C)(C)C(=O)CC[C@]4(C)C3CC[C@@]12C
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?