1 I0Y Nalpha-[(benzyloxy)carbonyl]-N-[(2s)-1-(4-tert-butoxyphenyl)-4-hydroxy-3-oxobutan-2-yl]-L-phenylalaninamide 1.000 2 I0X Nalpha-[(benzyloxy)carbonyl]-N-[(1s)-1-(4-tert-butoxybenzyl)-3-diazo-2-oxopropyl]-L-phenylalaninamide 0.927 3 T10 [1-(1-benzyl-3-hydroxy-2-oxo-propylcarbamoyl)-2-phenyl-ethyl]-carbamic acid benzyl ester 0.872 4 GHX (phenylmethyl) N-[(2s)-1-oxidanylidene-1-[[(2s)-1-oxidanyl-3-[(3s)-2-oxidanylidenepyrrolidin-3-yl]propan-2-yl]amino]-3-phenyl-propan-2-yl]carbamate 0.732