Using COC(=O)C(N)=Cc1c[nH]c2cc(Cl)ccc12, CC(=O)OC(C)=O to produce COC(=O)C(=Cc1c[nH]c2cc(Cl)ccc12)NC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.