Using Nc1ccc(Br)c(O)c1, COc1cccc2c(Cl)c(C#N)cnc12 to produce COc1cccc2c(Nc3ccc(Br)c(O)c3)c(C#N)cnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.