Using Clc1ccc(CBr)cc1, Cc1nc(-c2ccn[nH]2)sc1C(=O)NCc1cccnc1 to produce Cc1nc(-c2ccn(Cc3ccc(Cl)cc3)n2)sc1C(=O)NCc1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.