Using COC(=O)c1ccccc1N, O=C(O)COc1ccc(C23CC4CC(CC(C4)C2)C3)cc1 to produce COC(=O)c1ccccc1NC(=O)COc1ccc(C23CC4CC(CC(C4)C2)C3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.