Using O=C(N1CCCC1c1ccc(S(=O)(=O)Nc2nccs2)cc1)C(F)(F)F to produce O=S(=O)(Nc1nccs1)c1ccc(C2CCCN2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.