Using Cc1cc(Nc2nc(Cl)ncc2Br)n[nH]1, Cc1cc(CN)on1 to produce Cc1cc(CNc2ncc(Br)c(Nc3cc(C)[nH]n3)n2)on1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.