Using COCOc1ccc2c(=O)c(OCOC)c(-c3ccc(OCCF)c(OCOC)c3)oc2c1 to produce O=c1c(O)c(-c2ccc(OCCF)c(O)c2)oc2cc(O)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.