1 CMQ N~2~-[(benzyloxy)carbonyl]-N-[(1s,2s)-2-hydroxy-1-(4-hydroxybenzyl)propyl]-L-leucinamide 1.000 2 L3F (phenylmethyl) N-[(2s)-3-methyl-1-oxidanylidene-1-[[(2s)-1-oxidanyl-3-phenyl-propan-2-yl]amino]butan-2-yl]carbamate 0.844 3 UED N~2~-[(benzyloxy)carbonyl]-N-{(2s)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-leucinamide 0.818 4 ZH0 N~2~-[(benzyloxy)carbonyl]-N-{(2s)-1-oxo-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-leucinamide 0.818 5 JX6 N~2~-[(benzyloxy)carbonyl]-N-{(2r)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-4-methyl-L-leucinamide 0.794 6 XTM N~2~-{[(3-fluorophenyl)methoxy]carbonyl}-N-{(2s)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-leucinamide 0.794 7 XU4 N-{(2s)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-N~2~-{[(1s)-1-phenylethoxy]carbonyl}-L-leucinamide 0.794 8 A1LYZ (4-methoxyphenyl)methyl ~{N}-[(2~{S})-4-methyl-1-oxidanylidene-1-[[(2~{S})-1-oxidanylidene-3-[(3~{S})-2-oxidanylidenepyrrolidin-3-yl]propan-2-yl]amino]pentan-2-yl]carbamate 0.771 9 QH0 (phenylmethyl) N-[(2s)-4-methyl-1-[[(2s)-4-nitro-1-[(3r)-2-oxidanylidenepyrrolidin-3-yl]butan-2-yl]amino]-1-oxidanylidene-pentan-2-yl]carbamate 0.750 10 W1C N-{(2r)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-4-methyl-N~2~-{[(pyridin-3-yl)methoxy]carbonyl}-L-leucinamide 0.743 11 B1S (1r,2s)-2-({N-[(benzyloxy)carbonyl]-L-leucyl}amino)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propane-1-sulfonic acid 0.730 12 K36 (1s,2s)-2-({N-[(benzyloxy)carbonyl]-L-leucyl}amino)-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propane-1-sulfonic acid 0.730 13 VQR Methyl (4~{S})-4-[[(2~{S})-4-methyl-2-(phenylmethoxycarbonylamino)pentanoyl]amino]-5-[(3~{S})-2-oxidanylidenepyrrolidin-3-yl]pentanoate 0.730 14 I54 (1s,2s)-2-[(N-{[(2-chlorophenyl)methoxy]carbonyl}-L-leucyl)amino]-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propane-1-sulfonic acid 0.711 15 T10 [1-(1-benzyl-3-hydroxy-2-oxo-propylcarbamoyl)-2-phenyl-ethyl]-carbamic acid benzyl ester 0.711 16 V46 (1s,2s)-2-[(N-{[(3-chlorophenyl)methoxy]carbonyl}-L-leucyl)amino]-1-hydroxy-3-[(3s)-2-oxopyrrolidin-3-yl]propane-1-sulfonic acid 0.711 17 Y4P (1r,2s)-2-((S)-2-(((((1r,2s,4s)-bicyclo[2.2.1]heptan-2-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 18 Y51 (1r,2s)-2-((S)-2-(((((1s,2s,4s)-bicyclo[2.2.1]hept-5-en-2-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 19 Y71 (1s,2s)-2-((S)-2-(((((1s,2s,4s)-bicyclo[2.2.1]hept-5-en-2-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 20 Y7G (1s,2s)-2-((S)-2-(((((1r,2s,4s)-bicyclo[2.2.1]heptan-2-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 21 YKY (1r,2s)-2-((S)-2-((((2-fluorobenzyl)oxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((R)-2-oxo-3,4-dihydro-2h-pyrrol-3-yl)propane-1-sulfonic acid 0.711 22 YL7 (1s,2s)-2-((S)-2-((((2-fluorobenzyl)oxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((R)-2-oxo-3,4-dihydro-2h-pyrrol-3-yl)propane-1-sulfonic acid 0.711 23 YLD (1r,2s)-2-((S)-2-((((3-fluorobenzyl)oxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 24 YLJ (1s,2s)-2-((S)-2-((((3-fluorobenzyl)oxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 25 YLM (1r,2s)-2-((S)-2-((((4-fluorobenzyl)oxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 26 YLS (1s,2s)-2-((S)-2-((((4-fluorobenzyl)oxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid 0.711 27 ISG N-{(2s)-1-oxo-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl}-N~2~-({[(1r,2r)-2-phenylcyclopropyl]methoxy}carbonyl)-L-leucinamide 0.703