1 4T2 Tert-butyl {(1s)-2-(hydroxyamino)-1-[3'-(N'-hydroxycarbamimidoyl)biphenyl-4-yl]-2-oxoethyl}carbamate 1.000 2 4SA Tert-butyl [(1s)-1-(biphenyl-4-yl)-2-(hydroxyamino)-2-oxoethyl]carbamate 0.862 3 4SZ Tert-butyl [(1s)-2-(hydroxyamino)-2-oxo-1-(3',4',5'-trifluorobiphenyl-4-yl)ethyl]carbamate 0.781 4 4U6 N-{(1r)-2-(hydroxyamino)-1-[3'-(N'-hydroxycarbamimidoyl)biphenyl-4-yl]-2-oxoethyl}-2,2-dimethylpropanamide 0.727