(S)-3-(4-cyclopropyl-2,5-dioxoimidazolidin-4-yl)propanoic acid 、
7,8-dichloro-1-methyl-2,3,4,5-tetrahydro-1H-benzo[d]azepine 在
三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
生成 (S)-5-cyclopropyl-5-(3-((S)-7,8-dichloro-1-methyl-1,2,4,5-tetrahydro-3H-benzo[d]azepin-3-yl)-3-oxopropyl)imidazolidine-2,4-dione 、 (S)-5-cyclopropyl-5-(3-((R)-7,8-dichloro-1-methyl-1,2,4,5-tetrahydro-3H-benzo[d]azepin-3-yl)-3-oxopropyl)imidazolidine-2,4-dione