Using COC(=O)[C@@H]1CN(Cc2ccccc2)C[C@H]1c1cccc(Br)c1 to produce COC(=O)[C@@H]1CNC[C@H]1c1cccc(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.