Using O=[N+]([O-])c1ccccc1S(=O)(=O)Nc1cccc2c(Cl)ccnc12 to produce Nc1ccccc1S(=O)(=O)Nc1cccc2c(Cl)ccnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.