Using OB(O)c1ccc(Cl)cc1, CS(=O)(=O)c1ccc(Nc2n[nH]cc2C#N)cc1 to produce CS(=O)(=O)c1ccc(Nc2nn(-c3ccc(Cl)cc3)cc2C#N)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.