In Vitro Intrinsic Clearance-Based Optimization of <i>N</i><sup>3</sup>-Phenylpyrazinones as Corticotropin-Releasing Factor-1 (CRF<sub>1</sub>) Receptor Antagonists
作者:Richard A. Hartz、Vijay T. Ahuja、Maria Rafalski、William D. Schmitz、Allison B. Brenner、Derek J. Denhart、Jonathan L. Ditta、Jeffrey A. Deskus、Eddy W. Yue、Argyrios G. Arvanitis、Snjezana Lelas、Yu-Wen Li、Thaddeus F. Molski、Harvey Wong、James E. Grace、Kimberley A. Lentz、Jianqing Li、Nicholas J. Lodge、Robert Zaczek、Andrew P. Combs、Richard E. Olson、Ronald J. Mattson、Joanne J. Bronson、John E. Macor
DOI:10.1021/jm900302q
日期:2009.7.23
identified as potent and orally active corticotropin-releasingfactor-1 (CRF1) receptorantagonists. Selected compounds proved efficacious in an anxiety model in rats; however, pharmacokinetic properties were not optimal. In this article, we describe an in vitrointrinsicclearance-based approach to the optimization of pyrazinone-based CRF1receptorantagonists wherein sites of metabolism were identified
A Strategy to Minimize Reactive Metabolite Formation: Discovery of (<i>S</i>)-4-(1-Cyclopropyl-2-methoxyethyl)-6-[6-(difluoromethoxy)-2,5-dimethylpyridin-3-ylamino]-5-oxo-4,5-dihydropyrazine-2-carbonitrile as a Potent, Orally Bioavailable Corticotropin-Releasing Factor-1 Receptor Antagonist
作者:Richard A. Hartz、Vijay T. Ahuja、Xiaoliang Zhuo、Ronald J. Mattson、Derek J. Denhart、Jeffrey A. Deskus、Vivekananda M. Vrudhula、Senliang Pan、Jonathan L. Ditta、Yue-Zhong Shu、James E. Grace、Kimberley A. Lentz、Snjezana Lelas、Yu-Wen Li、Thaddeus F. Molski、Subramaniam Krishnananthan、Henry Wong、Jingfang Qian-Cutrone、Richard Schartman、Rex Denton、Nicholas J. Lodge、Robert Zaczek、John E. Macor、Joanne J. Bronson
DOI:10.1021/jm900716v
日期:2009.12.10
6-(difluoromethoxy)-2,5-dimethylpyridin-3-amine group in 19e contributed to the potency and improved in vivo properties of this compound and related analogues. 19e had excellent pharmacokinetic properties in rats and dogs and showed efficacy in the defensive withdrawal model of anxiety in rats. The lowest efficacious dose was 1.8 mg/kg. The results of a two-week rat safety study with 19e indicated that this compound
The invention encompasses compounds of Formula I, including pharmaceutically acceptable salts, their pharmaceutical compositions, and their use in treating CNS disorders.
The invention encompasses compounds of Formula I, including pharmaceutically acceptable salts, their pharmaceutical compositions, and their use in treating CNS disorders.