Using O=C(Cl)Oc1ccccc1, Nc1nc2ccc(OS(=O)(=O)c3c(Cl)cccc3Cl)cc2s1 to produce O=C(Nc1nc2ccc(OS(=O)(=O)c3c(Cl)cccc3Cl)cc2s1)Oc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.