Table 2. Inhibitory activity of ABH derivatives.

Inhibitor	IC50 (µM)	K i (µM)
ABH, S-isomer (L)	1.3 ± 0.2	0.9 ± 0.1
ABHPE, S-isomer (L)	2.1 ± 0.3	1.4 ± 0.2
ABHDP, racemic (DL)	1.7 ± 0.4	1.1 ± 0.3