1-[2-[2-[1-(7-azabicyclo[2.2.1]heptan-7-yl)-2-methyl-1-oxopropan-2-yl]-5-(3,5-dimethylphenyl)-6H-thieno[2,3-b]pyrrol-4-yl]ethyl]piperidine-4-carboxylic acid 、
二乙胺 在
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 2.0h,
以54%的产率得到2-[1,1-dimethyl-2-oxo-2-azabicyclo[2.2.1]heptan-7-ylethyl]-4-[2-(4-{N,N-dimethylaminocarbonyl}piperidin-1-yl)ethyl]-5-(3,5-dimethylphenyl)-6H-thieno[2,3-b]pyrrole