Using CC(C)(C)OC(=O)N1CCC(O)(Cc2ccccc2)CC1, CCN(CC)S(F)(F)F to produce CC(C)(C)OC(=O)N1CCC(F)(Cc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.