Using NNc1ccc(S(N)(=O)=O)cc1, COC(=O)C(=O)CC(=O)c1ccc(Cl)cc1 to produce COC(=O)c1cc(-c2ccc(Cl)cc2)n(-c2ccc(S(N)(=O)=O)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.