Using O=C(O)C(F)(F)F, Nc1ccc(Cl)cc1C(O)c1ccccc1Cl to produce O=C(Nc1ccc(Cl)cc1C(O)c1ccccc1Cl)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.