Preparation and biological evaluation of indole, benzimidazole, and thienopyrrole piperazine carboxamides:: Potent human histamine H4 antagonists

被引:105
作者
Venable, JD [1 ]
Cai, H [1 ]
Chai, WY [1 ]
Dvorak, CA [1 ]
Grice, CA [1 ]
Jablonowski, JA [1 ]
Shah, CR [1 ]
Kwok, AK [1 ]
Ly, KS [1 ]
Pio, B [1 ]
Wei, JM [1 ]
Desai, PJ [1 ]
Jiang, W [1 ]
Nguyen, S [1 ]
Ling, P [1 ]
Wilson, SJ [1 ]
Dunford, PJ [1 ]
Thurmond, RL [1 ]
Lovenberg, TW [1 ]
Karlsson, L [1 ]
Carruthers, NI [1 ]
Edwards, JP [1 ]
机构
[1] Johnson & Johnson Pharmaceut Res & Dev LLC, San Diego, CA 92121 USA
关键词
D O I
10.1021/jm0502081
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
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 [H-3]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.
引用
收藏
页码:8289 / 8298
页数:10
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