Using COC(=O)C(=C(C)C)N1C(=O)C2N=C(C(=O)OCc3ccccc3)OC21 to produce COC(=O)C(=C(C)C)N1C(=O)C2NC(C(=O)OCc3ccccc3)OC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.