Nα-alkylated derivatives of 2-phenylhistamines: Synthesis and in vitro activity of potent histamine H1-receptor agonists

Bioorganic & Medicinal Chemistry Letters
1998.0

Abstract

New potent N alpha-alkylated histamine H1-receptor agonists have been prepared and functionally evaluated for partial agonist potency and selectivity. N alpha-Methyl-2-(3-trifluoromethylphenyl)histamine contracts ileal segments and aortic rings of guinea-pig with a relative potency of 174% (95% confid. lim. 161-188%) and 217% (164-287%), respectively (histamine: 100%) and is the most potent H1 receptor agonist described so far.

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