Using Cc1ccc(S(=O)(=O)N2CCC(N)(C(=O)Nc3ccc(OC(F)(F)F)cc3)CC2)cc1, O=C([O-])[O-] to produce CNC1(C(=O)Nc2ccc(OC(F)(F)F)cc2)CCN(S(=O)(=O)c2ccc(C)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.