Using Clc1cc(Cl)ncn1, O=C(Nc1cc(F)c(O)cc1F)OCc1ccccc1 to produce O=C(Nc1cc(F)c(Oc2cc(Cl)ncn2)cc1F)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.