Using O=S(=O)(OCC(F)(F)F)C(F)(F)F, C[C@H]1COCCN1c1nc(Cl)nc2[nH]cnc12 to produce C[C@H]1COCCN1c1nc(Cl)nc2c1ncn2CC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.