Using CC1(C)O[C@@H](C=C(I)I)[C@@H](C(O)COC(c2ccccc2)(c2ccccc2)c2ccccc2)O1 to produce CC1(C)O[C@@H](C=C(I)I)[C@@H](C(=O)COC(c2ccccc2)(c2ccccc2)c2ccccc2)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.