(S)-(+)-扁桃酸 、
6-(1-methyl-1H-pyrazol-4-yl)-4-(5-(piperazin-1-yl)pyridin-2-yl)pyrazolo[1,5-a]pyridine-3-carbonitrile 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26%的产率得到(R)-4-(5-(4-(2-hydroxy-2-phenylacetyl)piperazin-1-yl)pyridin-2-yl)-6-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyridine-3-carbonitrile