Using C[O-], Cc1cc(Cl)n2nc(S(=O)(=O)Nc3c(Cl)cccc3Cl)nc2n1 to produce COc1cc(C)nc2nc(S(=O)(=O)Nc3c(Cl)cccc3Cl)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.