Using O=C1c2cc(I)ccc2OC(Cc2ccccc2)CN1CCCO, O=[Cr](=O)([O-])O[Cr](=O)(=O)[O-] to produce O=C(O)CCN1CC(Cc2ccccc2)Oc2ccc(I)cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.