Using Cc1ccc2nc(-c3ccc4c(c3)sc(N)[n+]4C)sc2c1 to produce Cc1ccc2nc(-c3ccc4c(c3)sc(=N)n4C)sc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.