Using O=S(=O)(OCC(F)(F)F)C(F)(F)F, Cc1c(C(F)(F)F)nn(C)c1O to produce Cc1c(C(F)(F)F)nn(C)c1OCC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.