3-Amino-2,4-dioxo-1,5-bis-methyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine 、 (2R,3S)-3-(tert-butoxycarbonyl)-2-isobutylhex-5-enoic acid 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,
以92%的产率得到tert-butyl (2S,3R)-3-[(1,5-dimethyl-2,4-dioxo-1,5-benzodiazepin-3-yl)carbamoyl]-5-methyl-2-prop-2-enylhexanoate