Using COc1cc2c(cc1N1CCN(C(=O)OC(C)(C)C)CC1)NCC2, Cc1cc(C(=O)Cl)ccc1Br to produce COc1cc2ccn(C(=O)c3ccc(Br)c(C)c3)c2cc1N1CCN(C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.