CCOc1ccc(N(C(=O)Cn2nnc3ccccc32)C(C(=O)NCc2ccccc2)c2ccc(OC)cc2)cc1
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?