CC1=C(C(=O)OCC(C)C)C23C(=O)c4ccccc4C2(O1)OC(N)=C3C#N
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?