Using COCCNC(=O)Nc1nc2cc(O)ccc2[nH]1, O=S(=O)(Cl)c1c(Cl)cccc1Cl to produce COCCNC(=O)Nc1nc2cc(OS(=O)(=O)c3c(Cl)cccc3Cl)ccc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.