Bioorganic and Medicinal Chemistry Letters p. 4599 - 4605 (2016)
Update date:2022-08-05
Topics:
Nel, Magdalena S.
Petzer, Anél
Petzer, Jacobus P.
Legoabe, Lesetja J.
In the present study, a series of twenty-two 2-benzylidene-1-indanone derivatives were synthesised and evaluated as inhibitors of recombinant human monoamine oxidase (MAO) A and B. The 2-benzylidene-1-indanone derivatives are structurally related to a series of benzylideneindanone derivatives which has previously been found to be MAO-B inhibitors. This study finds that the 2-benzylidene-1-indanones are MAO-B specific inhibitors with IC50values <2.74?μM. Among the compounds evaluated, twelve compounds exhibited IC50?0.1?μM and may be considered as high potency inhibitors. The 2-benzylidene-1-indanone derivatives also inhibited MAO-A with the most potent inhibition exhibited by 5g (IC50?=?0.131?μM). An analysis of the structure–activity relationships for MAO-B inhibition show that substitution on the A-ring with a 5-hydroxy group and on the B-ring with halogens and the methyl group yield high potency inhibition. It may therefore be concluded that 2-benzylidene-1-indanone analogues are promising leads for design of therapies for disorders such as Parkinson's disease.
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