SCHEDULED MAINTENANCE
Novel 1,3,4-thiadiazole compounds as potential MAO-A inhibitors – design, synthesis, biological evaluation and molecular modelling†
ab
Betül
Kaya Çavuşoğlu,
*bc
Ulviye
Acar Çevik,
ab
Derya
Osmaniye,
ab
Serkan
Levent,
ab
Yusuf
Özkay
ab
and
Zafer Asım
Kaplancıklı
a
Abstract
Monoamine oxidases (MAOs) are important drug targets for the management of neurological disorders. Herein, a series of new 1,3,4-thiadiazole derivatives bearing various alkyl/arylamine moieties as MAO inhibitors were designed and synthesized. All of the compounds were more selective against hMAO-A than hMAO-B. The half maximal inhibitory concentration (IC50) values of most of the compounds were lower than that of the common drug moclobemide (IC50 = 4.664 μM) and compound 6b was proven to be the most active compound (IC50 = 0.060 μM). Moreover, it was seen that compound 6b showed a similar inhibition profile to that of clorgyline (IC50 = 0.048 μM). The inhibition profile was found to be reversible and competitive for compound 6b with MAO-A selectivity. Molecular modelling studies aided in the understanding of the interaction modes between compound 6b and MAO-A. Furthermore, this compound was predicted to have a good pharmacokinetic profile and high BBB penetration. Therefore, such compounds are of interest towards developing new MAO inhibitors.
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