Using CCCCc1oc2ccccc2c1C(=O)c1cc(I)c(O)c(I)c1, CCOC(C)=O to produce CCCCc1oc2ccccc2c1C(=O)c1cc(I)c(OCC(=O)O)c(I)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.