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ID: ALA1152243
Journal: Bioorg Med Chem Lett
Title: Preliminary SAR studies on non-apamin-displacing 4-(aminomethylaryl)pyrrazolopyrimidine K(Ca) channel blockers.
Authors: Gentles RG, Hu S, Huang Y, Grant-Young K, Poss MA, Andres C, Fiedler T, Knox R, Lodge N, Weaver CD, Harden DG.
Abstract: An exploratory SAR study on a series of potent, non-apamin-displacing 4-(aminomethylaryl)pyrazolopyrimidine K(Ca) channel blockers is described and their selectivity against K(Ca) channel subtypes is reported. The most potent analog, 5-chloro-N-(thiophen-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine (24) displayed sub-micromolar activity in both a thallium flux and whole-cell electrophysiology assay and did not displace apamin in a competitive binding study.
CiteXplore: 18824351