Using O=C(c1cc(Cl)cc(C(F)(F)F)c1)C(F)(F)F, NCc1cccc(CN)c1 to produce NC(c1cc(Cl)cc(C(F)(F)F)c1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.