Using O=c1c(I)c(-c2ccccc2)oc2c1ccn1c(=O)[nH]nc21, O=C([O-])[O-] to produce Cn1nc2c3oc(-c4ccccc4)c(I)c(=O)c3ccn2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.