Using CC(C)(C)OC(=O)N[C@H]1CNc2ccccc2NC1=O, BrCC1CC1 to produce CC(C)(C)OC(=O)N[C@H]1CNc2ccccc2N(CC2CC2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.