Using N=C(N)N, O=S(=O)(c1ccccc1)c1ccc2c(Cl)cnc(Cl)c2c1 to produce N=C(N)Nc1ncc(Cl)c2ccc(S(=O)(=O)c3ccccc3)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.