1	T8Y	1,1'-(piperazine-1,4-diyl)di(ethan-1-one)	1.000
2	Q6U	1-[4-(prop-2-yn-1-yl)piperazin-1-yl]ethan-1-one	0.846
3	ZGX	1-(3,4-dihydropyrazin-1(2h)-yl)ethan-1-one	0.750
4	K3D	4-acetyl-N-ethylpiperazine-1-carboxamide	0.733
5	WZP	2-methyl-1-[4-(propan-2-yl)piperazin-1-yl]propan-1-one	0.733
6	DVQ	2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanol	0.714