Using COC(=O)c1ccc2c(c1)N(S(=O)(=O)c1ccc(F)cc1)CCS2 to produce O=C(O)c1ccc2c(c1)N(S(=O)(=O)c1ccc(F)cc1)CCS2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.