1 1G9 (3s,6s)-3-(4-hydroxybenzyl)-6-methylpiperazine-2,5-dione 1.000 2 A1AP4 (3s)-3-(cyclohexylmethyl)piperazin-2-one 0.824 3 TYP Cyclo-(L-tyrosine-L-proline) inhibitor 0.800 4 5FH (5s)-5-benzylimidazolidine-2,4-dione 0.722 5 YTT (3s,6s)-3,6-bis(4-hydroxybenzyl)piperazine-2,5-dione 0.708 6 1BX 1-hydroxy-6-(4-hydroxybenzyl)-4-methylpyridin-2(1h)-one 0.700