2-(Thiophene-2-amido)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylic acid 、
N,N,N'-三甲基乙二胺 在
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,
生成
3-N-[2-(dimethylamino)ethyl]-3-N-methyl-2-N-(thiophene-2-)-4,5,6,7-tetrahydro-1-benzothiophene-2,3-diamido