2-[4-(2,6-difluoro-phenoxy)-6-oxo-6H-pyridazin-1-yl]-4-methyl-pentanoic acid 、
1-(3-aminopyrazol-1-yl)-2-methyl-propan-2-ol 以afforded 2-[4-(2,6-difluoro-phenoxy)-6-oxo-6H-pyridazin-1-yl]-4-methyl-pentanoic acid [1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-amide as a white solid (0.63 g, 45%)的产率得到2-[4-(2,6-difluoro-phenoxy)-6-oxo-6H-pyridazin-1-yl]-4-methyl-pentanoic acid [1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-amide