3-[3-(5-methoxypyrimidin-2-yl)benzyl]-1-(1-methyl-1H-pyrazol-4-yl)pyridazin-4(1H)-one
3-{3-[5-(2-methoxyethoxy)pyrimidin-2-yl]benzyl}-1-(1-methyl-1H-pyrazol-4-yl)pyridazin-4(1H)-one
3-[3-(5-ethoxypyrimidin-2-yl)benzyl]-1-(1-methyl-1H-pyrazol-4-yl)pyridazin-4(1H)-one
ethyl (3-{[1-(1-methyl-1H-pyrazol-4-yl)-4-oxo-1,4-dihydropyridazin-3-yl]methyl}phenyl)carbamate