sodium cyanide   、                                                                                      
8-bromo-3-[(5-chloro-2-ethylsulfonyl)methyl]-7-[[(3S)-3-(ethylamino)piperidin-1-yl]methyl]-6-(trifluoromethyl)quinazolin-4-one                                                                                                                                                              在
                                                                                                                                         
cupric iodide                                                                                                                                                                                                                               acetonitrile-water                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N-甲基吡咯烷酮                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以to give the title compound (35.1 mg, 72%) as a pale yellow foamy substance的产率得到3-[(5-chloro-2-ethylsulfonyl)methyl]-7-[[(3S)-3-(ethylamino)piperidine-1-yl]methyl]-4-oxo-6-(trifluoromethyl)quinazolin-8-carbonitrile