Using CC(C)(C)OC(=O)NCC(=O)Nc1cccc(-c2cc(-c3c(Cl)cccc3Cl)no2)c1 to produce CC(C)(C)OC(=O)NCCNc1cccc(-c2cc(-c3c(Cl)cccc3Cl)no2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.