在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               ammonium acetate   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        以4 mg的产率得到(R)-4-((S)-2-Acetylamino-3-carboxy-propionylamino)-4-[(1S,2S)-1-((S)-1-{(2S,4R)-4-benzyloxy-2-[N'-(2,3-dihydro-indole-1-carbonyl)-N'-propyl-hydrazinocarbonyl]-pyrrolidine-1-carbonyl}-2-methyl-propylcarbamoyl)-2-methyl-butylcarbamoyl]-butyric acid