(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