COC1(OC)N=C(NC(=O)Nc2ccccc2)C2(C#N)C(c3ccccc3)C12C#N
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?