Using O=C1c2ccccc2C(=O)N1OC1CCN(S(=O)(=O)c2cccc(C(F)(F)F)c2)CC1 to produce NOC1CCN(S(=O)(=O)c2cccc(C(F)(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.