Using BrCc1ccccc1, COc1cc2c(cn1)N(C(=O)OC(C)(C)C)CC2 to produce CC(C)(C)OC(=O)N1CCc2cc(=O)n(Cc3ccccc3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.