COC(=O)C1=C(C)N=C(C)/C(=C(/O)OC)C1c1ccc(-c2cccc(Cl)c2Cl)o1
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?