Using C[C@@H]1CN(Cc2ccccc2)C[C@]1(CC(=O)OC(C)(C)C)C(=O)NC1CCN(C(=O)OC(C)(C)C)CC1 to produce C[C@@H]1CNC[C@]1(CC(=O)OC(C)(C)C)C(=O)NC1CCN(C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.