Using O=C1C=CC(=O)C=C1, O=c1cc(C(F)(F)F)c(C(F)(F)F)co1 to produce O=C1C=CC(=O)c2cc(C(F)(F)F)c(C(F)(F)F)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.