2,2,2-trichloroethyl (1RS,7RS,7aRS,7bRS)-6,7,7a,7b-tetrahydro-3-methyl-6-oxo-7-phenoxyacetamido-1H-azeto<1,2-a>azirino<2,1-c>pyrazine-4-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
potassium dihydrogenphosphate   、                                                                                                  
锌                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以16 mg的产率得到(7RS,7aRS,7bRS)-6,7,7a,7b-tetrahydro-3-methyl-6-oxo-7-phenoxyacetamido-1H-azeto<1,2-a>azirino<2,1-c>pyrazine-4-carboxylic acid