Using CC(C)(C)OC(=O)N1CC2CNCC2C1, CCN(CC)CC to produce CC(C)(C)OC(=O)N1CC2CN(C(=O)OCc3ccccc3)CC2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.