偶氮二甲酸二叔丁酯   、                                                                                      
benzyl 2-fluoro-4,4-dimethyl-3-oxopentanoate                                                                                                                                                              在
                                                                                                                                                                                 1-(3,5-bis(trifluoromethyl)phenyl)-3-((R)-(6-methoxyquinolin-4-yl)((2R)-5-vinylquinuclidin-2-yl)methyl)guanidin                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 96.0h,
                                                                                                                生成                                                 
ditert-butyl (R)-1-(1-(benzyloxy)-2-fluoro-4,4-dimethyl-1,3-dioxopentan-2-yl)hydrazine-1,2-dicarboxylate   、                                                                                             ditert-butyl (S)-1-(1-(benzyloxy)-2-fluoro-4,4-dimethyl-1,3-dioxopentan-2-yl)hydrazine-1,2-dicarboxylate