Using [O-][I+3]([O-])([O-])[O-], C=Cc1c(C(=O)OCC)c(OCc2ccccc2)c2n1C(C)CN(C)C2=O to produce CCOC(=O)c1c(OCc2ccccc2)c2n(c1C=O)C(C)CN(C)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.