Using On1nnc2ccc(Cl)cc21, O=S(=O)(Cl)c1ccc(Cl)cc1 to produce O=S(=O)(On1nnc2ccc(Cl)cc21)c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.