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