Using O=C(Cl)C(Cl)(Cl)Cl, CC(C)(C)OC(=O)N(CCCCCNS(=O)(=O)C(F)(F)F)Cc1cccc2nccn12 to produce CC(C)(C)OC(=O)N(CCCCCNS(=O)(=O)C(F)(F)F)Cc1cccc2ncc(C(=O)C(Cl)(Cl)Cl)n12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.