tert-butyl N-[(3S)-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-1-[4-[(3S)-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-3-(tert-butoxycarbonylamino)-4-oxo-2,3-dihydro-1,5-benzodiazepine-1-carbonyl]benzoyl]-4-oxo-2,3-dihydro-1,5-benzodiazepin-3-yl]carbamate                                                                                                                                                              在
                                                                                                                                                                                 
甲醇   、                                                                                                  
乙酰氯                                                                                                                                  作用下,
                                                                                                                                                                                        反应 16.0h,
                                                                                                                以98%的产率得到(3S)-3-amino-1-[4-[(3S)-3-amino-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-4-oxo-2,3-dihydro-1,5-benzodiazepine-1-carbonyl]benzoyl]-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-2,3-dihydro-1,5-benzodiazepin-4-one dihydrochloride