1 5N2 2-[4-[3-[(4-oxidanylidene-3~{H}-phthalazin-1-yl)methyl]phenyl]carbonylpiperazin-1-yl]pyridine-3-carbonitrile 1.000 2 KU8 4-[3-(1,4-diazepan-1-ylcarbonyl)-4-fluorobenzyl]phthalazin-1(2h)-one 0.722