Cc1ccc(S(=O)(=O)N[C@H](C(=O)OCC(=O)N2N=C(c3ccc(Cl)cc3)CC2c2ccco2)C(C)C)cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?