溴化氰   、                                                                                      
(S)-N-(1-(2-benzyl-1-methylhydrazineyl)-4-methyl-1-oxopentan-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamide                                                                                                                                                              在
                                                                                                                                                                                 
sodium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 36.0h,
                                                                                                                以131 mg的产率得到(S)-N-[1-(2-benzyl-2-cyano-1-methylhydrazinyl)-4-methyl-1-oxopentan-2-yl]-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamide