1 NHX N-{(2r)-2-[2-(hydroxyamino)-2-oxoethyl]-4-methylpentanoyl}-3-naphthalen-2-yl-L-alanyl-L-alaninamide 1.000 2 PLH Methylamino-phenylalanyl-leucyl-hydroxamic acid 0.758 3 GM6 3-(N-hydroxycarboxamido)-2-isobutylpropanoyl-trp-methylamide 0.743 4 HTA N-[3-(N'-hydroxycarboxamido)-2-(2-methylpropyl)-propanoyl]-O-tyrosine-N-methylamide 0.714