4-methoxybenzyl (2R,3S)-2-{[(3,5-dioxo-4-phenylpiperazin-1-yl)carbonyl]amino}-3-(1H-indol-3-yl)butanoate                                                                                                                                                              在
                                                                                                                                         palladium-carbon                                                                                                                                                                                                                               
氢气   、                                                                                                  silica gel   、                                                                                                  
乙酸乙酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以to give the title compound as a pale red amorphous substance (0.645 g, yield 52%)的产率得到(2R,3S)-2-{[(3,5-dioxo-4-phenylpiperazin-1-yl)carbonyl]amino}-3-(1H-indol-3-yl)butanoic acid