Table 4. Inhibitory potency against FAAH and stability in biological environments.
| |||
| Compound | Inhibition of FAAH IC50 a (μM) | Stability in liver S9 fractions b (%) | Stability in blood plasma c (%) |
| 32 | 0.046 | 82 ± 1 | 93 ± 7 |
| 46 | 1.6 | 65 ± 5 | 93 ± 3 |
aValues are the means of at least two independent determinations, errors are within ±20%.
bPercent of parent remaining after incubation with rat liver S9 fractions for 30 min in presence of the co-factor NADPH; values are means ± standard deviations of independent determinations (n = 3).
cPercent of parent remaining after incubation with porcine blood plasma for 30 min; values are means ± standard deviations of independent determinations (n = 3).