2-[4-(2,6-difluoro-phenoxy)-6-oxo-6H-pyridazin-1-yl]-3-(2,6-difluoro-phenyl)-propionic 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]-3-(2,6-difluoro-phenyl)-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide as a light yellow solid (571 mg, 65%)的产率得到2-[4-(2,6-difluoro-phenoxy)-6-oxo-6H-pyridazin-1-yl]-3-(2,6-difluoro-phenyl)-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide