Using COC(=O)CS, O=Cc1cc([N+](=O)[O-])cc(Cl)c1Cl to produce COC(=O)c1cc2cc([N+](=O)[O-])cc(Cl)c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.