5-甲基-2,5,7-三氮杂螺[3.4]辛烷-8-酮 、 2-[Methyl-[[2-[4-[(2-methylpropan-2-yl)oxycarbonyl]piperazin-1-yl]phenyl]methyl]carbamoyl]-1-benzothiophene-3-carboxylic acid 在
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
二氯甲烷 为溶剂,
以19.46 %的产率得到Tert-butyl 4-[2-[[methyl-[3-(5-methyl-8-oxo-2,5,7-triazaspiro[3.4]octane-2-carbonyl)-1-benzothiophene-2-carbonyl]amino]methyl]phenyl]piperazine-1-carboxylate