Using COC(=O)Cc1cccc(CBr)c1, Nc1nc(Cl)nc2nc[nH]c12 to produce COC(=O)Cc1cccc(Cn2cnc3c(N)nc(Cl)nc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.