Using O=C1NC(=O)c2ccccc21, N#Cc1cc(Cl)cc(Oc2c(Cl)ccc(CBr)c2F)c1 to produce N#Cc1cc(Cl)cc(Oc2c(Cl)ccc(CN3C(=O)c4ccccc4C3=O)c2F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.