Using COC(=O)c1cc(N2CCC(NC(=O)c3[nH]c(C)c(Cl)c3Cl)CC2)nc(S(C)=O)c1, CON to produce CONC(=O)c1cc(N2CCC(NC(=O)c3[nH]c(C)c(Cl)c3Cl)CC2)nc(S(C)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.