Table 2.

IC₅₀ values of compounds 2b, 2h, and Selegiline against MAO-B.

Compounds	MAO-B % Inhibition							IC50 (µM)	Selectivity Index
	10−3 M	10−4 M	10−5 M	10−6 M	10−7 M	10−8 M	10−9 M
2b	91.625 ± 1.652	87.357 ± 1.388	81.547 ± 1.722	74.951 ± 1.634	66.379 ± 0.975	41.513 ± 0.856	25.820 ± 0.765	0.042 ± 0.002	>23.812
2h	90.412 ± 1.602	84.362 ± 1.325	80.792 ± 1.045	72.188 ± 1.388	64.970 ± 1.107	42.826 ± 0.948	30.945 ± 0.782	0.056 ± 0.002	>17.857
Selegiline	99.387 ± 1.385	95.629 ± 1.456	86.205 ± 1.200	78.324 ± 1.108	66.871 ± 1.056	42.875 ± 0.865	16.748 ± 0.596	0.037 ± 0.001	–