Benzimidazole- and indole-substituted 1,3'-bipyrrolidine benzamides as histamine H3 receptor antagonists. 2010

Derek C Cole, and Jonathan L Gross, and Thomas A Comery, and Suzan Aschmies, and Warren D Hirst, and Cody Kelley, and Ji-In Kim, and Katie Kubek, and Xiaoping Ning, and Brian J Platt, and Albert J Robichaud, and William R Solvibile, and Joseph R Stock, and Gregory Tawa, and Marla J Williams, and John W Ellingboe
Chemical Sciences, Wyeth Research, 401 N Middletown Rd. Pearl River, NY 10965, United States. coledc@wyeth.com

Using a focused screen of biogenic amine compounds we identified a novel series of H(3)R antagonists. A preliminary SAR study led to reduction of MW while increasing binding affinity and potency. Optimization of the physical properties of the series led to (S)-6n, with improved brain to plasma exposure and efficacy in both water intake and novel object recognition models.

UI MeSH Term Description Entries
D007211 Indoles Benzopyrroles with the nitrogen at the number one carbon adjacent to the benzyl portion, in contrast to ISOINDOLES which have the nitrogen away from the six-membered ring.
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D011759 Pyrrolidines Compounds also known as tetrahydropyridines with general molecular formula (CH2)4NH. Tetrahydropyridine,Tetrahydropyridines
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001549 Benzamides BENZOIC ACID amides.
D001562 Benzimidazoles Compounds with a BENZENE fused to IMIDAZOLES.
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D054828 Histamine H3 Antagonists Drugs that selectively bind to but do not activate HISTAMINE H3 RECEPTORS. They have been used to correct SLEEP WAKE DISORDERS and MEMORY DISORDERS. Antihistaminics, H3,Histamine H3 Receptor Antagonists,Histamine H3 Blockers,Antagonists, Histamine H3,Blockers, Histamine H3,H3 Antagonists, Histamine,H3 Antihistaminics,H3 Blockers, Histamine

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