Discovery and Preclinical Characterization of 1-Methyl-3-(4-methylpyridin-3-yl)-6-(pyridin-2-ylmethoxy)-1<i>H</i>-pyrazolo-[3,4-<i>b</i>]pyrazine (PF470): A Highly Potent, Selective, and Efficacious Metabotropic Glutamate Receptor 5 (mGluR5) Negative Allosteric Modulator
作者:Lei Zhang、Gayatri Balan、Gabriela Barreiro、Brian P. Boscoe、Lois K. Chenard、Julie Cianfrogna、Michelle M. Claffey、Laigao Chen、Karen J. Coffman、Susan E. Drozda、Joshua R. Dunetz、Kari R. Fonseca、Paul Galatsis、Sarah Grimwood、John T. Lazzaro、Jessica Y. Mancuso、Emily L. Miller、Matthew R. Reese、Bruce N. Rogers、Isao Sakurada、Marc Skaddan、Deborah L. Smith、Antonia F. Stepan、Patrick Trapa、Jamison B. Tuttle、Patrick R. Verhoest、Daniel P. Walker、Ann S. Wright、Margaret M. Zaleska、Kenneth Zasadny、Christopher L. Shaffer
DOI:10.1021/jm401622k
日期:2014.2.13
A novel series of pyrazolopyrazines is herein disclosed as mGluR5 negative allosteric modulators (NAMs). Starting from a high-throughput screen (HTS) hit (1), a systematic structure–activity relationship (SAR) study was conducted with a specific focus on balancing pharmacological potency with physicochemical and pharmacokinetic (PK) properties. This effort led to the discovery of 1-methyl-3-(4-met
本文公开了一系列新颖的吡唑并吡嗪类作为mGluR5负变构调节剂(NAM)。从高通量筛选(HTS)命中(1)开始,进行了系统的结构-活性关系(SAR)研究,重点关注平衡药理学效力与理化和药代动力学(PK)特性。这种努力导致的发现1-甲基-3-(4-甲基吡啶-3-基)-6-(吡啶-2-基甲氧基)-1 ħ -吡唑并[3,4- b ]吡嗪(PF470,14)作为高效,选择性和口服可生物利用的mGluR5 NAM。化合物14表现出在1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)渲染的帕金森非人灵长类动物的模型稳健功效升-DOPA引起的运动障碍(PD-LID)。然而,由于一项为期90天的NHP监管毒理学研究中潜在的机制介导的发现与延迟型免疫介导的IV型超敏反应相一致,因此终止了14种药物的临床开发。