Using BrCc1ccccc1, CC(C)(C)OC(=O)N1CCc2nc3ccnn3c(N3CC(O)C3)c2CC1 to produce CC(C)(C)OC(=O)N1CCc2nc3ccnn3c(N3CC(OCc4ccccc4)C3)c2CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.