Using O=S(=O)(Cl)Cc1ccccc1, On1nnc2ccc(Cl)cc21 to produce O=S(=O)(Cc1ccccc1)On1nnc2ccc(Cl)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.