Using Fc1ccc2c(-c3ccc(OCCCBr)cc3)noc2c1, NCc1ccc(Cl)c(Cl)c1 to produce Fc1ccc2c(-c3ccc(OCCCNCc4ccc(Cl)c(Cl)c4)cc3)noc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.