Using O=C(OCc1ccccc1)ON1C(=O)CCC1=O, CC(C)(N)COc1cccc(N)c1C#N to produce CC(C)(COc1cccc(N)c1C#N)NC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.