6-methyl-7-(2-oxopropoxy)-2,3-dihydrocyclopenta[c]chromen-4(1H)-one 

Potent inhibitor of two izoforms of monoamine oxidaze,  namely MAO-A and MAO-B,  

with IC₅₀ = 235±18.52 nM and 165±7.04 nΜ, respectively.

OTAVAchemicals Catalogue Number:   7210430507

CAS Registry Number:  307548-94-3

Purity: 99%

Ref.: Santana et al. Quantitative Structure Activity Relationship and Complex Network Approach to Monoamine Oxidase A and B InhibitorsJournal of Medicinal Chemistry, (2008), Vol. 51, No. 21 6

Abstract: The work provides a new model for the prediction of the MAO-A and -B inhibitor activity by the use of combined complex networks and QSAR methodologies. On the basis of the obtained model, we prepared and assayed 33 coumarin derivatives, and the theoretical prediction was compared with the experimental activity data. The model correctly predicted 27 compounds, and most of the active derivatives showed IC₅₀ values in the µM nM range against both the MAO-A and MAO-B isoforms. Compound 14 shows the same MAO-A inhibitory activity (IC₅₀ 7.2 nM), as clorgyline used as a reference inhibitor and has the highest MAO-A specificity (1000-fold higher compared to MAO-B). On the other hand, compounds 24 (IC₅₀ 1.2 nM) and 28 (IC₅₀ 1.5 nM) show higher activity than selegiline (IC₅₀ 19.6 nM) and high MAO-B selectivity with 100-fold and 1600-fold inhibition levels, with respect to the MAO-A isoform.

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