N-Phenyl-4-pyrazolo[1,5-b]pyridazin-3-ylpyrimidin-2-amines as Potent and Selective Inhibitors of Glycogen Synthase Kinase 3 with Good Cellular Efficacy
摘要:
Glycogen synthase kinase 3 regulates glycogen synthase, the rate-determining enzyme for glycogen synthesis. Liver and muscle glycogen synthesis is defective in type 2 diabetics, resulting in elevated plasma glucose levels. Inhibition of GSK-3 could potentially be an effective method to control plasma glucose levels in type 2 diabetics. Structure-activity studies on a N-phenyl-4-pyrazolo[1,5-b]pyridazin-3-ylpyrimidin-2-amine series have led to the identification of potent and selective compounds with good cellular efficacy. Molecular modeling studies have given insights into the mode of binding of these inhibitors. Since the initial leads were also potent inhibitors of CDK-2/CDK-4, an extensive SAR was performed at various positions of the pyrazolo[1,5-b]pyridazin core to afford potent GSK-3 inhibitors that were highly selective over CDK-2. In addition, these inhibitors also exhibited very good cell efficacy and functional response. A representative example was shown to have good oral exposure levels, extending their utility in an in vivo setting. These inhibitors provide a viable lead series in the discovery of new therapies for the treatment of type 2 diabetes.
[EN] PYRAZOLE COMPOUNDS AS BTK INHIBITORS<br/>[FR] COMPOSÉS DE PYRAZOLE UTILISÉS EN TANT QU'INHIBITEURS DE BTK
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2015116485A1
公开(公告)日:2015-08-06
The present invention encompasses compounds of the formula (I) wherein the groups R1, Cy, and Y are defined herein, which are suitable for the treatment of diseases related to BTK, process of making, pharmaceutical preparations which contain compounds and their methods of use.
Synthesis of 1-Substituted Cyclopropylamines via Formal Tertiary C<sub>sp<sup>3</sup></sub>–H Amination of Cyclopropanes
作者:Kui Liu、Shao-Jie Cheng、Gen Luo、Zhi-Shi Ye
DOI:10.1021/acs.orglett.1c03687
日期:2021.12.3
A novel and facile approach to synthesis of 1-substituted cyclopropylamines via phosphine-catalyzed formal tertiary Csp3–H amination of cyclopropanes was described. The indoles, pyrroles, imidazoles, uracils, 2-pyridone, pyrimidin-4(3H)-one, and phthalimide had been proven as good aminating partners. The present protocol features transition-metal-free, excellent regioselectivity, high-atom-economy
描述了一种通过膦催化环丙烷的形式叔 C sp 3 -H 胺化合成 1-取代环丙胺的新方法。吲哚类、吡咯类、咪唑类、尿嘧啶类、2-吡啶酮、pyrimidin-4(3 H)-one,邻苯二甲酰亚胺已被证明是良好的胺化伙伴。本协议具有无过渡金属、优异的区域选择性、高原子经济性、温和的反应条件和广泛的底物。该协议的实用性还可以通过生物活性分子的后期修饰、放大反应和发散衍生化来证明。值得注意的是,该方法已用于激素敏感性脂肪酶 (HSL) 抑制剂的正式合成。通过实验和计算研究阐明了机械方面。
[EN] PYRADAZINE COMPOUNDS AS GSK-3 INHIBITORS<br/>[FR] COMPOSES DE PYRADAZINE UTILES COMME INHIBITEURS DE GSK-3
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2004035588A1
公开(公告)日:2004-04-29
The present invention relates generally to inhibitors of the kinases, such as GSK3, and more particularly to fused pyradazine compounds according to formula (I) and methods of their use.
The present invention relates generally to inhibitors of the kinases, such as GSK3, and more particularly to fused pyradazine compounds and methods of their use.