Using [N-]=[N+]=[N-], O=C(CBr)Nc1ccccc1C(=O)c1ccccc1 to produce [N-]=[N+]=Nc1c(-c2ccccc2)c2ccccc2[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.