(1R*,5S*)-3-(4-((S)-3-hydroxypyrrolidin-1-yl)phenyl)-8-azabicyclo[3.2.1]oct-2-ene-2,8-dicarboxylic acid 8-tert-butyl ester 2-methyl ester   、                                                                                      
2,6-二氯对甲酚                                                                                                                                                              在
                                                                                                                                                                                 
三丁基膦   、                                                                                                  
1,1'-azodicarbonyl-dipiperidine                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 (1S,5R)-3-(4-((R)-3-(2,6-dichloro-4-methylphenoxy)pyrrolidin-1-yl)phenyl)-8-azabicyclo[3.2.1]oct-2-ene-2,8-dicarboxylic acid 8-tert-butyl ester 2-methyl ester   、                                                                                             (1R,5S)-3-(4-((R)-3-(2,6-dichloro-4-methylphenoxy)pyrrolidin-1-yl)phenyl)-8-azabicyclo[3.2.1]oct-2-ene-2,8-dicarboxylic acid 8-tert-butyl ester 2-methyl ester