Using CN(CC(=O)N(c1ccccc1)c1ccccc1)[C@@H]1CCN(C(=O)c2ccccc2)C1 to produce CN(CC(=O)N(c1ccccc1)c1ccccc1)[C@@H]1CCNC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.