CCN(CC)C(=O)[C@H]1C[C@H](CC(=O)NCc2ccc(OC)c(OC)c2)C(=O)N2CCc3c([nH]c4ccc(Cl)cc34)[C@]12C
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?