2226517-76-4Relevant academic research and scientific papers
SGC-GAK-1: A Chemical Probe for Cyclin G Associated Kinase (GAK)
Asquith, Christopher R. M.,Berger, Benedict-Tilman,Wan, Jing,Bennett, James M.,Capuzzi, Stephen J.,Crona, Daniel J.,Drewry, David H.,East, Michael P.,Elkins, Jonathan M.,Fedorov, Oleg,Godoi, Paulo H.,Hunter, Debra M.,Knapp, Stefan,Müller, Susanne,Torrice, Chad D.,Wells, Carrow I.,Earp, H. Shelton,Willson, Timothy M.,Zuercher, William J.
, p. 2830 - 2836 (2019)
We describe SGC-GAK-1 (11), a potent, selective, and cell-active inhibitor of cyclin G-associated kinase (GAK), together with a structurally related negative control SGC-GAK-1N (14). 11 was highly selective in an in vitro kinome-wide screen, but cellular
Towards the development of an in vivo chemical probe for cyclin G associated kinase (GAK)
Asquith, Christopher R.M.,Bennett, James M.,Su, Lianyong,Laitinen, Tuomo,Elkins, Jonathan M.,Pickett, Julie E.,Wells, Carrow I.,Li, Zengbiao,Willson, Timothy M.,Zuercher, William J.
, (2019)
SGC-GAK-1 (1) is a potent, selective, cell-active chemical probe for cyclin G-associated kinase (GAK). However, 1 was rapidly metabolized in mouse liver microsomes by cytochrome P450-mediated oxidation, displaying rapid clearance in liver microsomes and in mice, which limited its utility in in vivo studies. Chemical modifications of 1 that improved metabolic stability, generally resulted in decreased GAK potency. The best analog in terms of GAK activity in cells was 6-bromo-N-(1H-indazol-6-yl)quinolin-4-amine (35) (IC50 = 1.4 μM), showing improved stability in liver microsomes while still maintaining a narrow spectrum activity across the kinome. As an alternative to scaold modifications we also explored the use of the broad-spectrum cytochrome P450 inhibitor 1-aminobenzotriazole (ABT) to decrease intrinsic clearance of aminoquinoline GAK inhibitors. Taken together, these approaches point towards the development of an in vivo chemical probe for the dark kinase GAK.
Potent antiviral activity of novel multi-substituted 4-anilinoquin(az)olines
Saul, Sirle,Pu, Szu-Yuan,Zuercher, William J.,Einav, Shirit,Asquith, Christopher R.M.
, (2020/06/08)
Screening a series of 4-anilinoquinolines and 4-anilinoquinazolines enabled identification of potent novel inhibitors of dengue virus (DENV). Preparation of focused 4-anilinoquinoline/quinazoline scaffold arrays led to the identification of a series of high potency 6-substituted bromine and iodine derivatives. The most potent compound 6-iodo-4-((3,4,5-trimethoxyphenyl)amino)quinoline-3-carbonitrile (47) inhibited DENV infection with an EC50 = 79 nM. Crucially, these compounds showed very limited toxicity with CC50 values >10 μM in almost all cases. This new promising series provides an anchor point for further development to optimize compound properties.
Design of a Cyclin G Associated Kinase (GAK)/Epidermal Growth Factor Receptor (EGFR) Inhibitor Set to Interrogate the Relationship of EGFR and GAK in Chordoma
Asquith, Christopher R. M.,Naegeli, Kaleb M.,East, Michael P.,Laitinen, Tuomo,Havener, Tammy M.,Wells, Carrow I.,Johnson, Gary L.,Drewry, David H.,Zuercher, William J.,Morris, David C.
, p. 4772 - 4778 (2019/05/08)
We describe the design of a set of inhibitors to investigate the relationship between cyclin G associated kinase (GAK) and epidermal growth factor receptor (EGFR) in chordoma bone cancers. These compounds were characterized both in vitro and using in cell
Anti-tubercular activity of novel 4-anilinoquinolines and 4-anilinoquinazolines
Asquith, Christopher R.M.,Fleck, Neil,Torrice, Chad D.,Crona, Daniel J.,Grundner, Christoph,Zuercher, William J.
, p. 2695 - 2699 (2019/08/07)
We screened a series of 4-anilinoquinolines and 4-anilinoquinazolines and identified novel inhibitors of Mycobacterium tuberculosis (Mtb). The focused 4-anilinoquinoline/quinazoline scaffold arrays yielded compounds with high potency and the identification of 6,7-dimethoxy-N-(4-((4-methylbenzyl)oxy)phenyl)quinolin-4-amine (34) with an MIC90 value of 0.63–1.25 μM. We also defined a series of key structural features, including the benzyloxy aniline and the 6,7-dimethoxy quinoline ring, that are important for Mtb inhibition. Importantly the compounds showed very limited toxicity and scope for further improvement by iterative medicinal chemistry.
Design and Analysis of the 4-Anilinoquin(az)oline Kinase Inhibition Profiles of GAK/SLK/STK10 Using Quantitative Structure-Activity Relationships
Asquith, Christopher R. M.,Bennett, James M.,Elkins, Jonathan M.,Laitinen, Tuomo,Poso, Antti,Tizzard, Graham J.,Wells, Carrow I.,Zuercher, William J.
, (2019/12/03)
The 4-anilinoquinoline and 4-anilinoquinazoline ring systems have been the focus of significant efforts in prior kinase drug discovery programs, which have led to approved medicines. Broad kinome profiles of these compounds have now been assessed with the advent of advanced screening technologies. These ring systems, while originally designed for specific targets including epidermal growth factor receptor (EGFR), but actually display a number of potent collateral kinase targets, some of which have been associated with negative clinical outcomes. We have designed and synthesized a series of 4-anilinoquin(az)olines in order to better understand the structure-activity relationships of three main collateral kinase targets of quin(az)oline-based kinase inhibitors: cyclin G associated kinase (GAK), STE20-like serine/threonine-protein kinase (SLK) and serine/threonine-protein kinase 10 (STK10). This was achieved through a series of quantitative structure-activity relationship (QSAR) analysis, water mapping of the kinase ATP binding sites and extensive small-molecule X-ray structural analysis.
