CCOc1ccccc1C(=O)N[C@H](C(=O)OCC(=O)Nc1nnc(-c2ccccc2)o1)C(C)C
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?