Using CN(C)C=Cc1nn2c(Cl)ccc2c(=O)n1Cc1ccccc1, [O-][I+3]([O-])([O-])[O-] to produce O=Cc1nn2c(Cl)ccc2c(=O)n1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.