Using COc1ccc(Cl)cc1C1C(=O)Nc2cc(C(F)(F)F)ccc21 to produce O=C1Nc2cc(C(F)(F)F)ccc2C1c1cc(Cl)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.