Preparation and biological evaluation of indole, benzimidazole, and thienopyrrole piperazine carboxamides: potent human histamine h(4) antagonists.

Abstract:

:Three series of H(4) receptor ligands, derived from indoly-2-yl-(4-methyl-piperazin-1-yl)-methanones, have been synthesized and their structure-activity relationships evaluated for activity at the H(4) receptor in competitive binding and functional assays. In all cases, substitution of small lipophilic groups in the 4 and 5-positions led to increased activity in a [(3)H]histamine radiolabeled ligand competitive binding assay. In vitro metabolism and initial pharmacokinetic studies were performed on selected compounds leading to the identification of indole 8 and benzimidazole 40 as potent H(4) antagonists with the potential for further development. In addition, both 8 and 40 demonstrated efficacy in in vitro mast cell and eosinophil chemotaxis assays.

journal_name

J Med Chem

authors

Venable JD,Cai H,Chai W,Dvorak CA,Grice CA,Jablonowski JA,Shah CR,Kwok AK,Ly KS,Pio B,Wei J,Desai PJ,Jiang W,Nguyen S,Ling P,Wilson SJ,Dunford PJ,Thurmond RL,Lovenberg TW,Karlsson L,Carruthers NI,Edwards JP

doi

10.1021/jm0502081

keywords:

subject

Has Abstract

pub_date

2005-12-29 00:00:00

pages

8289-98

issue

26

eissn

0022-2623

issn

1520-4804

journal_volume

48

pub_type

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