1 MHC 3-mercapto-1-(1,3,4,9-tetrahydro-B-carbolin-2-yl)-propan-1-one 1.000 2 8RS 1-(4-phenylpiperazin-1-yl)ethan-1-one 0.737 3 NRH Norharmane 0.722 4 WRF 1-methyl-4-phenylpyridin-1-ium 0.722 5 WYH 2,3,4,9-tetrahydro-1~{H}-pyrido[3,4-B]indole 0.722 6 KI1 1-{4-[4-chloro-3-(trifluoromethyl)phenyl]-4-hydroxypiperidin-1-yl}-3-sulfanylpropan-1-one 0.708 7 54U 1-[4-(4-hydroxyphenyl)piperazin-1-yl]ethanone 0.700 8 S3J 2-(4-phenylpiperidin-1-yl)ethanoic acid 0.700 9 WNY 1-[4-(4-chlorophenyl)piperazin-1-yl]ethan-1-one 0.700