5-(tert-butoxycarbonylamino)-2-(2,6-difluorophenyl)thiazole-4-carboxylic acid 、
tert-butyl (3R,4R)-(1-(3-amino-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)-3,4-trans-4-{[tert-butyl(dimethyl)silyl]oxy}piperidin-3-yl)carbamate 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
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以8 mg的产率得到tert-butyl ((3R,4R)-1-(3-(5-((tert-butoxycarbonyl)amino)-2-(2,6-difluorophenyl)thiazole-4-carboxamido)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)-4-((tert-butyldimethylsilyl)oxy)piperidin-3-yl)carbamate