6-(4-chlorophenyl)-2-(1-methyl-1H-pyrazol-4-yl)-3-oxo-2,3-dihydropyridazine-4-carboxylic acid 、
(4-氨基-4-四氢硫代吡喃yl)甲醇 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,
以62 %的产率得到6-(4-chlorophenyl)-N-[4-(hydroxymethyl)thian-4-yl]-2-(1-methylpyrazol-4-yl)-3-oxopyridazine-4-carboxamide