(2R)-2-[7-(2,6-dimethylphenoxy)-2,5-dioxo-1,3-dihydro-1,4-benzodiazepin-4-yl]-3-methylbutanoic acid 、
4-哌啶酮缩乙二醇 在
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
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
生成 7-(2,6-dimethylphenoxy)-4-[(2R)-1-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-3-methyl-1-oxobutan-2-yl]-1,3-dihydro-1,4-benzodiazepine-2,5-dione