Using NC(CO)(c1ccc(OC(F)F)nc1)c1cccc(Br)c1, O=C(Cl)CCl to produce O=C1COCC(c2ccc(OC(F)F)nc2)(c2cccc(Br)c2)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.