Using [N-]=[N+]=[N-], CC(C)C(Br)c1nc2nccnc2c(=O)n1Cc1ccccc1 to produce CC(C)C(N=[N+]=[N-])c1nc2nccnc2c(=O)n1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.