1 3QJ Hexyl(trihydroxy)borate(1-) 1.000 2 3QK Trihydroxy(octyl)borate(1-) 0.833 3 2BH [(1e,5s)-5-amino-5-carboxypent-1-enyl](trihydroxy)borate(1-) 0.769 4 ABH 2(S)-amino-6-boronohexanoic acid 0.769 5 BNO Norleucine boronic acid 0.727 6 5AB [(5s)-5-amino-5-carboxyhexyl](trihydroxy)borate 0.714 7 BUB 1-butane boronic acid 0.700