methyl 2-((4-methoxyphenyl)(tosylimino)methyl)acrylate   、                                                                                      
sodium (2-oxocyclopentylidene)methanolate                                                                                                                                                              在
                                                                                                                                                                                 1-((1S,2S)-2-aminocyclohexyl)-3-(((1R,4aS,10ar)-7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydrophenanthren-1-yl)methyl)thiourea   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水   、                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
(5R,6R)-methyl 6-hydroxy-8-(4-methoxyphenyl)-1-oxo-7-tosyl-7-azaspiro[4.5]dec-8-ene-9-carboxylate   、                                                                                             
(5S,6S)-methyl 6-hydroxy-8-(4-methoxyphenyl)-1-oxo-7-tosyl-7-azaspiro[4.5]dec-8-ene-9-carboxylate