Microwave-accelerated Dimroth rearrangement for the synthesis of 4-anilino-6-nitroquinazolines. Application to an efficient synthesis of a microtubule destabilizing agent
A useful and rapid access to 4-anilino-6-nitroquinazolines was investigated in a multi-gram scale via microwave-accelerated condensation and Dimroth rearrangement of the starting anilines with imines obtained by reaction of anthranilonitriles with formamide dimethylacetal. A novel short and efficient route to AZiXa (TM) (EPi28495, MPC-6827), a microtubule destabilizing agent and apoptosis inducer, was performed with success demonstrating that well controlled parameters offer comfortable using of microwave technology with safe and environmental benefits. (C) 2010 Elsevier Ltd. All rights reserved.
Potent antiviral activity of novel multi-substituted 4-anilinoquin(az)olines
作者:Sirle Saul、Szu-Yuan Pu、William J. Zuercher、Shirit Einav、Christopher R.M. Asquith
DOI:10.1016/j.bmcl.2020.127284
日期:2020.8
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 CC(50 )values > 10 mu M in almost all cases. This new promising series provides an anchor point for further development to optimize compound properties.
Design and Analysis of the 4‐Anilinoquin(az)oline Kinase Inhibition Profiles of GAK/SLK/STK10 Using Quantitative Structure‐Activity Relationships
作者:Christopher R. M. Asquith、Tuomo Laitinen、James M. Bennett、Carrow I. Wells、Jonathan M. Elkins、William J. Zuercher、Graham J. Tizzard、Antti Poso
DOI:10.1002/cmdc.201900521
日期:2020.1.7
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 kinasetargets of quin(az)oline-based kinaseinhibitors: cyclinGassociatedkinase (GAK), STE20-like serine/threonine-protein kinase (SLK) and serine/threonine-protein kinase 10 (STK10)