Using Nc1ccc(O)cc1, O=C(O)c1ccccc1Nc1ccc(F)cc1 to produce O=C(Nc1ccc(O)cc1)c1ccccc1Nc1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.