Using O=C=Nc1nc(Cl)cc(Cl)n1, COC(=O)Cc1ccccc1S(N)(=O)=O to produce COC(=O)Cc1ccccc1S(=O)(=O)NC(=O)Nc1nc(Cl)cc(Cl)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.