Using COc1ccc(C(=O)c2c(F)c(F)c(F)c(F)c2F)cc1 to produce O=C(c1ccc(O)cc1)c1c(F)c(F)c(F)c(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.