(2S)-2-[4-(tert-butoxycarbonyl)piperazin-1-yl]propanoic acid 在
盐酸 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
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
1,4-二氧六环 、
乙醇 、
N,N-二甲基甲酰胺 为溶剂,
反应 2.33h,
生成 (2S)-N-(2-(6,6-dimethyl-4,5,6,7-tetrahydro-1H-indazol-3-yl)-1H-indol-6-yl)-2-(4-(1-(1-(2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindolin-5-yl)piperidin-4-yl)azetidine-3-carbonyl)piperazin-1-yl)-N-methylpropanamide