Using N=C(N)N, O=C(Cl)N1CCOc2cc(S(=O)(=O)c3ccccc3)ccc21 to produce N=C(N)NC(=O)N1CCOc2cc(S(=O)(=O)c3ccccc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.