Using [N-]=[N+]=[N-], CC(C)Cn1c(CCl)nc2c(N)nc3ccccc3c21 to produce CC(C)Cn1c(CN=[N+]=[N-])nc2c(N)nc3ccccc3c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.