(2S)-3-(1-methyl-2,5-dioxopyrrol-3-yl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid 在
甲酸 、
偶氮二异丁腈 、
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
甲苯 、
乙腈 、
叔丁醇 为溶剂,
反应 28.0h,
生成 (3S,5a'R,8'S,8a'S,9a'R)-1-methyl-8'-(phenylthio)tetrahydro-1'H,5'H,6'H,8'H-spiro[pyrrolidine-3,7'-[5a,9a](epiminomethano)cyclopenta[f]indolizine]-2,5,5',10'-tetraone