(S)-2-(methoxycarbonylamino)-2-((R)-tetrahydrofuran-3-yl)acetic acid   、                                                                                      (2S,2′S)-tert-butyl 2,2′-(4,4′-(trans-1-(4-fluorophenyl)pyrrolidine-2,5-diyl)bis(4,1-phenylene))bis(azanediyl)bis(oxomethylene)dipyrrolidine-1-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
三氟乙酸   、                                                                                                  
N,N-二异丙基乙胺   、                                                                                                  N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷   、                                                                                         
二甲基亚砜                                                                                  为溶剂,
                                                                                                                                                    反应 2.25h,
                                                                                                                生成                                                 
methyl N-[(1S)-2-[(2S)-2-[[4-[(2S,5S)-1-(4-fluorophenyl)-5-[4-[[(2S)-1-[(2S)-2-(methoxycarbonylamino)-2-[(3R)-tetrahydrofuran-3-yl]acetyl]pyrrolidine-2-carbonyl]amino]phenyl]pyrrolidin-2-yl]phenyl]carbamoyl]pyrrolidin-1-yl]-2-oxo-1-[(3R)-tetrahydrofuran-3-yl]ethyl]carbamate   、                                                                                             
methyl N-[(1S)-2-[(2S)-2-[[4-[(2R,5R)-1-(4-fluorophenyl)-5-[4-[[(2S)-1-[(2S)-2-(methoxycarbonylamino)-2-[(3R)-tetrahydrofuran-3-yl]acetyl]pyrrolidine-2-carbonyl]amino]phenyl]pyrrolidin-2-yl]phenyl]carbamoyl]pyrrolidin-1-yl]-2-oxo-1-[(3R)-tetrahydrofuran-3-yl]ethyl]carbamate