NC(=O)C(c1ccccc1)N1OC2C(=O)N(Cc3ccccc3)C(=O)C2C1c1cccc(Oc2ccc(Cl)cc2)c1
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?