Using O=C(Cl)c1c(Cl)cc(Cl)cc1Cl, Nc1cc(Cl)ncc1F to produce O=C(Nc1cc(Cl)ncc1F)c1c(Cl)cc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.