2-(4-bromobutyl)-6-(7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridin-4-yl)-5-methyl-4,5-dihydropyridazin-3(2H)-one 、
6-(3-hydroxyphenyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one 在
potassium carbonate 、 potassium iodide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 6.0h,
以74%的产率得到6-[7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridin-4-yl]-5-methyl-2-[4-[3-(4-methyl-6-oxo-4,5-dihydro-1H-pyridazin-3-yl)phenoxy]butyl]-4,5-dihydropyridazin-3-one