Using N=C(N)C1CCN(Cc2ccccc2)CC1, O=C(CBr)c1ccc(F)c(Cl)c1 to produce Fc1ccc(-c2cnc(C3CCN(Cc4ccccc4)CC3)[nH]2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.