C=C1CC[C@H]2[C@@](C)(CCC[C@@]2(C)COC(=O)CCC(=O)OC)[C@@H]1CCC1=CC(=O)OC1
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?