2-[4-(2-cyano-phenoxy)-6-oxo-6H-pyridazin-1-yl]-3-cyclopentyl-propionic acid 、
1-(3-aminopyrazol-1-yl)-2-methyl-propan-2-ol 以afforded 2-[4-(2-cyano-phenoxy)-6-oxo-6H-pyridazin-1-yl]-3-cyclopentyl-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide as a white solid (0.83 g, 58%)的产率得到2-[4-(2-cyano-phenoxy)-6-oxo-6H-pyridazin-1-yl]-3-cyclopentyl-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide