Using O=C(c1ccc(F)cc1)c1ccc(F)cc1, O=C(O)c1cccc(O)c1 to produce O=C(O)c1cccc(Oc2ccc(C(=O)c3ccc(F)cc3)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.