Using Nc1c(Cl)cccc1C(=O)Nc1ccc(Br)cc1, Cc1cc(C=O)cc(C)c1OCCO to produce Cc1cc(-c2nc3c(Cl)cccc3c(=O)n2-c2ccc(Br)cc2)cc(C)c1OCCO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.