(E)-N-[(o-methylphenyl)methylene]aminoacetonitrile   、                                                                                      
富马酸二甲酯                                                                                                                                                              在
                                                                                                                                                                                 (R,Rp)-1-(2-(diphenylphosphano)ferrocenyl)-1-(2-diphenylphosphanophenyl)-N,N-dimethylmethanamine   、                                                                                                  
silver(I) acetate   、                                                                                                  
sodium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                生成                                                 (2R,3R,4R,5S)-dimethyl 2-cyano-5-(o-tolyl)pyrrolidine-3,4-dicarboxylate   、                                                                                             
(2S,3S,4S,5R)-dimethyl 2-cyano-5-(o-tolyl)pyrrolidine-3,4-dicarboxylate   、                                                                                             dimethyl 2-cyano-5-(o-tolyl)pyrrolidine-3,4-dicarboxylate