Using NCc1ccc(S(=O)(=O)c2ccccc2OC(F)(F)F)cc1, O=C(O)/C=C/c1cccnc1 to produce O=C(C=Cc1cccnc1)NCc1ccc(S(=O)(=O)c2ccccc2OC(F)(F)F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.