benzyl 5-methyl-3-oxo-1-((2-oxooxazolidin-5-yl)methyl)-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 palladium 10% on activated carbon   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 18.33h,
                                                                                                                以100%的产率得到5-methyl-3-oxo-1-((2-oxooxazolidin-5-yl)methyl)-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid