Using NC(=O)c1ccnc(-c2c[nH]cn2)c1, Clc1ccccc1CBr to produce NC(=O)c1ccnc(-c2cn(Cc3ccccc3Cl)cn2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.