Synthesis, structure–activity relationships and biological evaluation of 4,5,6,7-tetrahydropyrazolopyrazines as metabotropic glutamate receptor 5 negative allosteric modulators
作者:Wataru Hirose、Yoshihiro Kato、Takayoshi Yamamoto、Momoe Kassai、Makoto Takata、Shun Hayashi、Yukiyo Arai、Satoki Imai、Kohzo Yoshida
DOI:10.1016/j.bmcl.2016.07.019
日期:2016.8
The design, synthesis and SAR studies of novel 4,5,6,7-tetrahydropyrazolopyrazines as metabotropic glutamate receptor 5 (mGluR5) negative allosteric modulators (NAMs) are presented in this letter. Starting from a HTS hit compound (1, IC50=477nM), optimization of various groups led to the synthesis of a potent mGluR5 NAM (32, IC50=75nM) with excellent rat PK profile and good brain penetration. This
这封信介绍了作为代谢型谷氨酸受体5(mGluR5)负变构调节剂(NAM)的新型4,5,6,7-四氢吡唑并吡嗪的设计,合成和SAR研究。从HTS命中化合物(1,IC50 = 477nM)开始,各种基团的优化导致合成了有效的mGluR5 NAM(32,IC50 = 75nM),具有出色的大鼠PK谱和良好的脑渗透性。该化合物在小鼠悬浮液模型(MED:30mg / kg)中产生了口服抗抑郁药样作用。