Abstract:
:Studies indicate that MAO-B is induced in peripheral inflammatory diseases. To target peripheral tissues using MAO-B inhibitors that do not permeate the blood-brain barrier (BBB) the MAO-B-selective inhibitor deprenyl was remodeled by replacing the terminal acetylene with a CO2H function, and incorporating a para-OCH2Ar motif (compounds 10a-s). Further, in compound 32 the C-2 side chain corresponded to CH2CN. In vitro, 10c, 10j, 10k, and 32 were identified as potent reversible MAO-B inhibitors, and all four compounds were more stable than deprenyl in plasma, liver microsomal, and hepatocyte stability assays. In vivo, they demonstrated greater plasma bioavailability. Assessment of in vitro BBB permeability showed that compound 10k is a P-glycoprotein (P-gp) substrate and 10j displayed mild interaction. Importantly, compounds 10c, 10j, 10k, and 32 displayed significantly reduced BBB permeability after intravenous, subcutaneous, and oral administration. These polar MAO-B inhibitors are pertinent leads for evaluation of efficacy in noncentral nervous system (CNS) inflammatory disease models.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Gealageas R,Devineau A,So PPL,Kim CMJ,Surendradoss J,Buchwalder C,Heller M,Goebeler V,Dullaghan EM,Grierson DS,Putnins EEdoi
10.1021/acs.jmedchem.7b01588subject
Has Abstractpub_date
2018-08-23 00:00:00pages
7043-7064issue
16eissn
0022-2623issn
1520-4804journal_volume
61pub_type
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