tert-butyl (2S)-2-[[(2S)-1-[(3'aS,6'aS)-4'-(2-methylpropanoyl)-5'-oxospiro[1,3-dithiolane-2,6'-2,3,3a,6a-tetrahydropyrrolo[3,2-b]pyrrole]-1'-yl]-3-methyl-1-oxobutan-2-yl]carbamoylamino]-3-methylbutanoate 在
N,N-二异丙基乙胺 、
三氟乙酸 、 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 、
乙腈 为溶剂,
反应 2.0h,
生成 1-[(2S)-1-[(3'aS,6'aS)-4'-(2-methylpropanoyl)-5'-oxospiro[1,3-dithiolane-2,6'-2,3,3a,6a-tetrahydropyrrolo[3,2-b]pyrrole]-1'-yl]-3-methyl-1-oxobutan-2-yl]-3-[(2S)-3-methyl-1-oxo-1-(4-pyrimidin-2-ylpiperazin-1-yl)butan-2-yl]urea