Using CON=C(C)[C@@H]1C[C@H]1c1c(Cl)sc(Cl)c1Cl to produce CONC(C)[C@@H]1C[C@H]1c1c(Cl)sc(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.