Using Cc1ccc(NC(=O)C(F)(F)F)cc1NC(=O)C(F)(F)F to produce O=C(Nc1ccc2cc(C(F)(F)F)[nH]c2c1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.