Synthesis and SAR studies of imidazo-[1,2-a]-pyrazine Aurora kinase inhibitors with improved off-target kinase selectivity
作者:Matthew E. Voss、Matthew P. Rainka、Mike Fleming、Lisa H. Peterson、David B. Belanger、M. Arshad Siddiqui、Alan Hruza、Johannes Voigt、Kimberly Gray、Andrea D. Basso
DOI:10.1016/j.bmcl.2012.03.051
日期:2012.5
The structure–activity relationships of new Aurora A/B kinase inhibitors derivedfrom the previously identified kinase inhibitor 12 are described. Introduction of aceticacidamides onto the pyrazole of compound 12 was postulated to influence Aurora A/B selectivity and improve the profile against off-target kinases. The SAR of the aceticacidamides was explored and the effect of substitution on enzyme
描述了源自先前鉴定的激酶抑制剂12的新型Aurora A / B激酶抑制剂的构效关系。假定将乙酰胺引入化合物12的吡唑中会影响Aurora A / B的选择性并改善针对脱靶激酶的作用。探索了乙酸酰胺的SAR,并研究了取代对酶抑制的影响以及基于机理的细胞活性。另外,筛选了几种更有效的抑制剂的脱靶激酶选择性。
WO2008/156614
申请人:——
公开号:——
公开(公告)日:——
Discovery of orally bioavailable imidazo[1,2-a]pyrazine-based Aurora kinase inhibitors
作者:David B. Belanger、Michael J. Williams、Patrick J. Curran、Amit K. Mandal、Zhaoyang Meng、Matthew P. Rainka、Tao Yu、Neng-Yang Shih、M. Arshad Siddiqui、Ming Liu、Seema Tevar、Suining Lee、Lianzhu Liang、Kimberly Gray、Bohdan Yaremko、Jennifer Jones、Elizabeth B. Smith、Dan B. Prelusky、Andrea D. Basso
DOI:10.1016/j.bmcl.2010.08.140
日期:2010.11
We report a series of potent imidazo[1,2-a]pyrazine-based Aurora kinase inhibitors. Optimization of the solvent accessible 8-position led to improvements in both oral bioavailability and off-target kinase inhibition. Compound 25 demonstrates anti-tumor activity in an A2780 ovarian tumor xenograft model. (C) 2010 Elsevier Ltd. All rights reserved.
Discovery of a Potent, Injectable Inhibitor of Aurora Kinases Based on the Imidazo-[1,2-<i>a</i>]-Pyrazine Core
作者:Tao Yu、Jayaram R. Tagat、Angela D. Kerekes、Ronald J. Doll、Yonglian Zhang、Yushi Xiao、Sara Esposite、David B. Belanger、Patrick J. Curran、Amit K. Mandal、M. Arshad Siddiqui、Neng-Yang Shih、Andrea D. Basso、Ming Liu、Kimberly Gray、Seema Tevar、Jennifer Jones、Suining Lee、Lianzhu Liang、Samad Ponery、Elizabeth B. Smith、Alan Hruza、Johannes Voigt、Lata Ramanathan、Winifred Prosise、Mengwei Hu
DOI:10.1021/ml100063w
日期:2010.8.12
The imidazo-[1,2-a]-pyrazine (1) is a dual inhibitor of Aurora kinases A and B with modest cell potency (IC50 = 250 nM) and low solubility (5 mu M). Lead optimization guided by the binding mode led to the acyclic amino alcohol 12k (SCH 1473759), which is a picomolar inhibitor of Aurora kinases (TdF K-d Aur A = 0.02 nM and Aur B = 0.03 nM) with improved cell potency (phos-HH3 inhibition IC50 = 25 nM) and intrinsic aqueous solubility (11.4 mM). It also demonstrated efficacy and target engagement in human tumor xenograft mouse models.