Using NS(=O)(=O)c1nc2cc(O)ccc2s1, O=C(Cl)Cc1ccc(Cl)cc1 to produce NS(=O)(=O)c1nc2cc(OC(=O)Cc3ccc(Cl)cc3)ccc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.