Imidazo[4,5-b]pyridines as corticotropin releasing factor receptor ligands
摘要:
A series of high affinity CRF receptor ligands with an imidazo[4,5-b]pyridine core is described. Individual analogues were synthesized and tested in a rat CRF receptor binding assay. The best compounds were further tested in the dog N-in-1 pharmaco-kinetic model to assess plasma levels at 1 mg/kg (po) and in the rat situational anxiety model to assess anxiolytic efficacy at 3 mg/kg (po). The structure-activity relationships for good receptor binding affinity are described herein. (C) 2002 Elsevier Science Ltd. All rights reserved.
The present invention provides compounds of Formula I:
1
wherein the variables A, B, Ar, R
1
, R
2
, and R
3
are as defined herein. The compounds of Formula (I) can function as corticotropin releasing factor (CRF) receptor antagonists and can be useful, for example, in the treatment of disorders characterized by abnormal levels of CRF such as anxiety and depression.
CRF Ligands via suzuki and negishi couplings of 3-pyridyl boronic acids or halides with 2-benzyloxy-4-chloro-3-nitropyridine
作者:Argyrios G. Arvanitis、Charles R. Arnold、Lawrence W. Fitzgerald、William E. Frietze、Richard E. Olson、Paul J. Gilligan、David W. Robertson
DOI:10.1016/s0960-894x(02)00835-1
日期:2003.1
A series of imidazo[4,5-b]pyridines with a 7-(3-pyridyl) substituent is described as high affinity CRF receptor ligands. Individual analogues were synthesized from key intermediates obtained via palladium-catalyzed coupling of 3-pyridyl zinc or boronic acid organometallic intermediates with 2-benzyloxy-4-chloro-3-nitropyridine 12. (C) 2002 Elsevier Science Ltd. All rights reserved.
Imidazo[4,5-b]pyridines as corticotropin releasing factor receptor ligands
作者:Argyrios G. Arvanitis、Joseph T. Rescinito、Charles R. Arnold、Richard G. Wilde、Gary A. Cain、Jung Hui Sun、Jia-Sheng Yan、Christopher A. Teleha、Lawrence W. Fitzgerald、John McElroy、Robert Zaczek、Paul R. Hartig、Scott Grossman、Stephen P. Arneric、Paul J. Gilligan、Richard E. Olson、David W. Robertson
DOI:10.1016/s0960-894x(02)00833-8
日期:2003.1
A series of high affinity CRF receptor ligands with an imidazo[4,5-b]pyridine core is described. Individual analogues were synthesized and tested in a rat CRF receptor binding assay. The best compounds were further tested in the dog N-in-1 pharmaco-kinetic model to assess plasma levels at 1 mg/kg (po) and in the rat situational anxiety model to assess anxiolytic efficacy at 3 mg/kg (po). The structure-activity relationships for good receptor binding affinity are described herein. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis, Structure−Activity Relationships, and In Vivo Evaluation of <i>N</i><sup>3</sup>-Phenylpyrazinones as Novel Corticotropin-Releasing Factor-1 (CRF<sub>1</sub>) Receptor Antagonists
作者:Richard A. Hartz、Vijay T. Ahuja、Argyrios G. Arvanitis、Maria Rafalski、Eddy W. Yue、Derek J. Denhart、William D. Schmitz、Jonathan L. Ditta、Jeffrey A. Deskus、Allison B. Brenner、Frank W. Hobbs、Joseph Payne、Snjezana Lelas、Yu-Wen Li、Thaddeus F. Molski、Gail K. Mattson、Yong Peng、Harvey Wong、James E. Grace、Kimberley A. Lentz、Jingfang Qian-Cutrone、Xiaoliang Zhuo、Yue-Zhong Shu、Nicholas J. Lodge、Robert Zaczek、Andrew P. Combs、Richard E. Olson、Joanne J. Bronson、Ronald J. Mattson、John E. Macor
DOI:10.1021/jm900301y
日期:2009.7.23
Evidence suggests that corticotropin-releasingfactor-1 (CRF1) receptorantagonists may offer therapeutic potential for the treatment of diseases associated with elevated levels of CRF such as anxiety and depression. A pyrazinone-based chemotype of CRF1receptorantagonists was discovered. Structure−activity relationship studies led to the identification of numerous potent analogues including 12p,