Using O=C(NCC(F)(F)F)Nc1cccc(Br)c1, Fc1ccc(-c2ccn3c(I)cnc3c2)cc1 to produce O=C(NCC(F)(F)F)Nc1cccc(-c2cnc3cc(-c4ccc(F)cc4)ccn23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.