Using COc1ccc(Br)c2c1CCN(S(=O)(=O)c1ccc(Oc3ccc(F)cc3)cc1)C2C(=O)O to produce O=C(O)C1c2c(Br)ccc(O)c2CCN1S(=O)(=O)c1ccc(Oc2ccc(F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.