Using CC(=O)c1ccc(F)cc1Cl, FC(F)(F)c1ccc(Cl)nc1 to produce O=C(Cc1ccc(C(F)(F)F)cn1)c1ccc(F)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.