Using O=C(O)Cc1ccc(OC(F)(F)F)cc1, CC1=CC(=O)c2ccccc2C1=O to produce CC1=C(Cc2ccc(OC(F)(F)F)cc2)C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.