3-morpholinocyclobutylamine 、 2-fluoro-5-[[1-[(3-fluoro-4-methoxyphenyl)methyl]-6-oxo-pyridazine-3-carbonyl]amino]benzoic acid lithium salt 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7 %的产率得到N-(4-fluoro-3-((trans-3-morpholinocyclobutyl)carbamoyl)phenyl)-1-(3-fluoro-4-methoxybenzyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide