Using O=Cc1c(Cl)ccc(O)c1Cl, O=S(=O)(OCC(F)(F)F)C(F)(F)F to produce O=Cc1c(Cl)ccc(OCC(F)(F)F)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.