Using NS(=O)(=O)c1ccc(-n2nc(C(F)(F)F)cc2-c2ccc(CO)cc2)cc1, CC(C)=O to produce NS(=O)(=O)c1ccc(-n2nc(C(F)(F)F)cc2-c2ccc(C(=O)O)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.