COC(=O)CN1C(=O)C2(C(C(=O)OC)=C(N)Oc3ccccc32)C2=C1CC(C)(C)CC2=O
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?