Using CC(C)(C)OC(=O)C1CC(C#N)C(c2ccccc2)N1, Cc1cccc(NC(=O)NCC(=O)O)c1 to produce Cc1cccc(NC(=O)NCC(=O)N2C(C(=O)OC(C)(C)C)CC(C#N)C2c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.