Table 6.

MAO-A and MAO-B inhibitory activity results.

Compounds	MAO-A IC50	MAO-B IC50	SI
(1)	26.3 ± 1.03 μM	153.25 ± 1.58 nM	172
selegiline	67.24 ± 1.03 μM	19.58 ± 0.83 nM	3434
iproniazide	6.55 ± 0.75 μM	7.52 ± 0.34 μM	0.87

Each IC₅₀ value is the mean ± S.E.M. from three experiments. SI: MAO-B selectivity index = IC₅₀ (MAO-A)/IC₅₀ (MAO-B).