Using COC(=O)c1cc(Cl)c(Cl)cc1NS(=O)(=O)c1cccc2nsnc12 to produce O=C(O)c1cc(Cl)c(Cl)cc1NS(=O)(=O)c1cccc2nsnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.