Using [O-][I+3]([O-])([O-])[O-], C=CCn1c(-c2ccc(Cl)cc2)nn(CC(=O)OC)c1=O to produce COC(=O)Cn1nc(-c2ccc(Cl)cc2)n(CC=O)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.