Cc1ccc(S(=O)(=O)N2C[C@H]3N(C(=O)OC(C)C)N(C(=O)OC(C)C)C[C@H](OC(=O)NC4CC4)[C@@]3(O)C2)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?