1 FB6 6-(dihydroxyboranyl)-2-methyl-L-norleucine 1.000 2 5AB [(5s)-5-amino-5-carboxyhexyl](trihydroxy)borate 0.929 3 FB5 2-(difluoromethyl)-6-(dihydroxyboranyl)-L-norleucine 0.867 4 2BH [(1e,5s)-5-amino-5-carboxypent-1-enyl](trihydroxy)borate(1-) 0.857 5 ABH 2(S)-amino-6-boronohexanoic acid 0.857 6 4U7 [(5s)-5-amino-5-carboxy-6,6-difluorohexyl](trihydroxy)borate(1-) 0.812 7 2JN 2-methyl-D-norleucine 0.769 8 MK8 2-methyl-L-norleucine 0.769 9 1EC [(5r)-5-amino-5-carboxy-8-hydroxyoctyl](trihydroxy)borate(1-) 0.765 10 0XO 2-methyl-D-lysine 0.714 11 5GM (4s)-2,4-dimethyl-L-norleucine 0.714 12 66D (4r)-2,4-dimethyl-L-norleucine 0.714 13 MH8 (2s)-2-amino-2-methylhept-6-enoic acid 0.714