[4-[[[(2R,3S)-3-(dibenzylamino)-2-hydroxy-4-phenylbutyl](2-methylpropyl)amino]sulfonyl]-2-nitrophenyl]carbamic acid 1,1-dimethylethyl ester                                                                                                                                                              在
                                                                                                                                         palladium 10% on activated carbon                                                                                                                                                                                                                               
噻吩   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以75%的产率得到[2-amino-4-[[[(2R,3S)-3-(dibenzylamino)-2-hydroxy-4-phenylbutyl](2-methylpropyl)amino]sulfonyl]phenyl]carbamic acid 1,1-dimethylethyl ester