2,4-dimethylpentan-3-yl 4-[(3R,4S)-2-oxo-4-phenylmethoxycarbonyl-3-(pyridin-3-ylmethyl)azetidine-1-carbonyl]piperazine-1-carboxylate                                                                                                                                                              在
                                                                                                                                         palladium 10% on activated carbon                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,4-二氧六环                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以95%的产率得到(2S,3R)-1-[4-(2,4-dimethylpentan-3-yloxycarbonyl)piperazine-1-carbonyl]-4-oxo-3-(pyridin-3-ylmethyl)azetidine-2-carboxylic acid