Using [N-]=[N+]=[N-], CS(=O)(=O)c1ccc(-c2ccc(OCC3CCN(C#N)CC3)cn2)cc1 to produce CS(=O)(=O)c1ccc(-c2ccc(OCC3CCN(c4nnn[nH]4)CC3)cn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.