Using CC(C)(C)OC(=O)N1CCC(=O)CC1, CC(=O)Nc1ccc(N)cn1 to produce CC(=O)Nc1ccc(NC2CCN(C(=O)OC(C)(C)C)CC2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.