CC(=O)OC1CCC2(C)C3=C(CCC2C1(C)C)[C@@]1(C)CCC(C(C)CCC=C(C)C)[C@@]1(C)CC3
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?