CCNC(=O)COC(=O)C1C(C(=O)OCC)=C(C)N=C(C)/C1=C(/O)OCC
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?