Using c1cc2[nH]cnc2cn1, CCOC(=O)c1sc2cc(CBr)ccc2c1Cl to produce CCOC(=O)c1sc2cc(Cn3cnc4ccncc43)ccc2c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.