N-苯基马来酰亚胺   、                                                                                      
1-phthalimido-3-(pyridin-3-yl)spiro[aziridine-2,2'-indene]-1',3'-dione                                                                                                                                                                                              以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以75%的产率得到rac-(3'R,3a'R,6a'S)-5'-phenyl-2'-phthalimido-3'-pyridin-3-yl-3a',6a'-dihydro-2'H-spiro[indene-2,1'-pyrrolo[3,4-c]pyrrole]-1,3,4',6'(3'H,5'H)-tetrone