Using CC(C)(C)OC(=O)Nc1ccc(N2CCN(Cc3ccccc3)CC2)cc1 to produce CC(C)(C)OC(=O)Nc1ccc(N2CCNCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.