Using C=C(CCNS(=O)(=O)c1ccccc1Cl)c1c(C)c(CC(=O)OC)cc2ccc(F)cc12 to produce C=C(CCNS(=O)(=O)c1ccccc1Cl)c1c(C)c(CC(=O)O)cc2ccc(F)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.