Using O=C(OCc1ccccc1)c1cnc(Nc2cccc(Cl)c2)nc1C(F)(F)F to produce O=C(O)c1cnc(Nc2cccc(Cl)c2)nc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.