Using Nc1nc(Nc2cc(Cl)cc(Cl)c2)n[nH]1, CN(C)S(=O)(=O)c1ccc(C=O)cc1 to produce CN(C)S(=O)(=O)c1ccc(CNc2nc(Nc3cc(Cl)cc(Cl)c3)n[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.