CCOC(=O)/C(C#N)=C/c1c(N2CCN(c3cccc(Cl)c3)CC2)nc2c(C)cccn2c1=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?