sodium 1-(4-ethyloxylcarbonylpiperazine-1-yl)diazen-1-ium-1,2-diolate   、                                                                                      
O2-(2,4-dinitro-5-fluorophenyl) 1-(N,N-dimethylamino)diazen-1-ium-1,2-diolate                                                                                                                                                                                              以
                                                                                         
丙酮                                                                                  为溶剂,
                                                                                                                                                                                        以84%的产率得到1-[1-(N,N-dimethylamino)diazen-1-ium-1,2-diol-2-ato]-2,4-dinitro-5-{[(4-ethoxycarbonyl)piperazin-1-yl]diazen-1-ium-1,2-diol-2-ato}benzene