Using O=C(O)c1ccccc1, CC(C)(C)OC(=O)N1CC(N[C@H]2CCNC2)C1 to produce CC(C)(C)OC(=O)N1CC(N[C@H]2CCN(C(=O)c3ccccc3)C2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.