Cc1c(Cl)cccc1N1C(N)=C(C#N)C(c2cc(CN3CCOCC3)cs2)C2=C1CCCC2=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?