Using CC(=O)N1CCN(c2ccc(N3CC[C@@H]4CN(C)C[C@@H]43)cc2)CC1 to produce CN1C[C@H]2CCN(c3ccc(N4CCNCC4)cc3)[C@H]2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.