Using O=CC(=O)c1ccccc1, CC(C)(C)OC(=O)NCCc1ccc(N)cc1 to produce CC(C)(C)OC(=O)NCCc1ccc(NCC(O)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.