1 EHE 5-methyl-6-phenyl-2-piperidin-4-yl-pyridazin-3-one 1.000 2 EHK 5-methyl-2-piperidin-4-yl-6-pyridin-4-yl-pyridazin-3-one 0.905 3 SNJ 2,5-diphenyl-4~{H}-pyrazol-3-one 0.727