Using C[C@@H]1CN(C(=O)c2ccccc2)CC[C@@H]1c1c[nH]c2ccccc12 to produce C[C@@H]1CNCC[C@@H]1c1c[nH]c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.