CC(=O)OC1CC[C@]2(C)C(CC[C@@]3(C)C2C(=O)C=C2C4C(C)C(C)CC[C@@]4(C(=O)O)CCC23C)C1(C)C
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?