New class of thio/semicarbazide-based benzyloxy derivatives as selective class of monoamine oxidase-B inhibitors.

Sixteen thio/semicarbazide-based benzyloxy derivatives (BT1-BT16) were synthesized and evaluated for their inhibitory activities against monoamine oxidases (MAOs). Most compounds showed better inhibitory activity against MAO-B than against MAO-A. BT1, BT3, and BT5 showed the greatest inhibitory activity with an identical IC value of 0.

Development of a New Class of Monoamine Oxidase-B Inhibitors by Fine-Tuning the Halogens on the Acylhydrazones.

A total of 14 acyl hydrazine derivatives () were developed and examined for their ability to block monoamine oxidase (MAO). Thirteen analogues showed stronger inhibition potency against MAO-B than MAO-A. With a half-maximum inhibitory concentration of 0.

An efficient method to access spiro pseudoindoxyl ketones: evaluation of indoxyl and their -benzylated derivatives for inhibition of the activity of monoamine oxidases.

A simple, metal-free approach was developed to obtain novel pseudoindoxyl derivatives. The reaction was mediated by BuOK on tetrahydrocarbazole 8 in dimethyl sulfoxide (DMSO) at room temperature through the hydroxylation of the indole double bond and a subsequent pinacol-type rearrangement. Spiro pseudoindoxyl compounds and their -benzylated derivatives were assessed for their inhibitory activities against monoamine oxidase (MAO) enzymes.