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J Med Chem. 2000 May 18;43(10):1958-68.

4-Alkyl- and 4-cinnamylglutamic acid analogues are potent GluR5 kainate receptor agonists.

Author information

1
Lilly, S.A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain.

Abstract

Enantiomerically pure (2S,4R)-4-substituted glutamic acids were prepared and tested for homomeric GluR5 and GluR6 kainate subtype receptor affinity. Some of the 4-cinnamyl analogues showed high selectivity and potency (K(i) < 25 nM) for the GluR5 receptors. The greatest selectivity and potency were achieved with the 3-(2-naphthyl)prop-2-enyl compound. This compound, LY339434, has negligible activity at the AMPA and kainate receptors GluR1, -2, -4 and -6. Although, LY339434 shows agonist activity at NMDA receptors in cultural hippocampal neurons (approximate EC(50) of 2.5 microM), we consider that LY339434 should be a useful pharmacological tool for the investigation of the functional role of GluR5 kainate receptors.

PMID:
10821708
DOI:
10.1021/jm9911682
[Indexed for MEDLINE]

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