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J Med Chem. 2009 Apr 9;52(7):2148-52. doi: 10.1021/jm801572m.

Discovery of 6-({4-[2-(4-tert-butylphenyl)-1H-benzimidazol-4-yl]piperazin-1-yl}methyl)quinoxaline (WAY-207024): an orally active antagonist of the gonadotropin releasing hormone receptor (GnRH-R).

Author information

1
Department of Chemical Sciences, Musculoskeletal Biology, and Drug Safety and Metabolism, Wyeth Research, Collegeville, Pennsylvania 19426, USA.

Abstract

A potent, highly insoluble, GnRH antagonist with a 2-phenyl-4-piperazinylbenzimidazole template and a quinoxaline-2,3-dione pharmacophore was modified to maintain GnRH antagonist activity and improve in vitro pharmaceutical properties. Structural changes to the quinoxaline-2,3-dione portion of the molecule resulted in several structures with improved properties and culminated in the discovery of 6-([4-[2-(4-tert-butylphenyl)-1H-benzimidazol-4-yl]piperazin-1-yl] methyl)quinoxaline (WAY-207024). The compound was shown to have excellent pharmacokinetic parameters and lowered rat plasma LH levels after oral administration.

PMID:
19271735
DOI:
10.1021/jm801572m
[Indexed for MEDLINE]

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