C#CCN1C(=O)CCC23C1=NC(C(=O)OC)=C(C(=O)OC)C2N(C)c1ccccc13
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?