Using O=C(c1ccc(Cl)cc1)c1ccc(CBr)cc1, O=c1c2c(nc3[nH]ccn13)CCC2 to produce O=C(c1ccc(Cl)cc1)c1ccc(Cn2ccn3c(=O)c4c(nc23)CCC4)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.