Using FC(F)(F)c1cnc(Cl)nc1Cl, CNC(=O)c1ccccc1N to produce CNC(=O)c1ccccc1Nc1nc(Cl)ncc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.