Using Clc1cccc(-c2nc(CBr)no2)c1, c1cc(-c2nnc3n2CCC3)ccn1 to produce Clc1cccc(-c2nc(CC3CCn4c(-c5ccncc5)nnc43)no2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.