Using O=C(O)c1ccc(C(F)(F)F)c(Cl)n1, OCC1CCOCC1 to produce O=C(O)c1ccc(C(F)(F)F)c(OCC2CCOCC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.