Table 5. Rat Liver Mitochondrial MAO (rMAO) Enzyme Inhibitory Activity of Donepezil–N-[(5-Benzyloxy-1-methyl-1H-indol-2-yl)methyl]-N-methylprop-2-yn-1-amine Hybrids.
| compound | X | Y | n | IC50 for MAO-A (μM) | IC50 for MAO-A (μM) | SI valuea |
|---|---|---|---|---|---|---|
| 33 | N | CH | 0 | 0.082 ± 0.003 | 0.750 ± 0.0020 | 0.1093 |
| 34 | N | CH | 1 | 0.0067 ± 0.0018 | 0.130 ± 0.041 | 0.0515 |
| 35 | N | CH | 2 | 0.0052 ± 0.0011 | 0.043 ± 0.008.0 | 0.1209 |
| 36 | N | CH | 3 | 0.010 ± 0.0040 | 2.700 ± 0.110 | 0.00370 |
| 37 | CH | N | 1 | 0.140 ± 0.044 | 1.400 ± 0.500 | 0.1 |
| 38 | CH | N | 2 | 0.065 ± 0.017 | 11.000 ± 2.400 | 0.0059 |
| 39 | N | N | 2 | 0.031 ± 0.014 | 1.600 ± 0.710 | 0.0193 |
Selectivity index for MAO-B (IC50 for MAO-A/IC50 for MAO-B).
