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Synthesis and evaluation of pyridone-phenoxypropyl-R-2-methylpyrrolidine analogues as histamine H-3 receptor antagonists
Journal article   Open access   Peer reviewed

Synthesis and evaluation of pyridone-phenoxypropyl-R-2-methylpyrrolidine analogues as histamine H-3 receptor antagonists

Nadine C. Becknell, Jacquelyn A. Lyons, Lisa D. Aimone, John A. Gruner, Joanne R. Mathiasen, Rita Raddatz and Robert L. Hudkins
Bioorganic & medicinal chemistry letters, v 21(23), pp 7076-7080
01 Dec 2011
PMID: 22014551
url
https://doi.org/10.7270/q26h4hvkView
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Abstract

Chemistry Chemistry, Medicinal Chemistry, Organic Life Sciences & Biomedicine Pharmacology & Pharmacy Physical Sciences Science & Technology
6-{4-[3-(R)-2-Methylpyrrolidin-1-yl) propoxy]-phenyl}-2H-pyridazin-3-one 6 (Irdabisant; CEP-26401) was recently reported as a potent H3R antagonist with excellent drug-like properties and in vivo activity that advanced into clinical evaluation. A series of pyridone analogs of 6 was synthesized and evaluated as H3R antagonists. Structure-activity relationships revealed that the 5-pyridone regiomer was optimal for H3R affinity. N-Methyl 9b showed excellent H3R affinity, acceptable pharmacokinetics and pharmaceutical properties. In vivo evaluation of 9b showed potent activity in the rat dipsogenia model and robust wake-promoting activity in the rat EEG model. (C) 2011 Elsevier Ltd. All rights reserved.

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Web of Science research areas
Chemistry, Medicinal
Chemistry, Organic
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