36204-92-9Relevant academic research and scientific papers
INHIBITING ATAXIA TELANGIECTASIA AND RAD3-RELATED PROTEIN (ATR)
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Paragraph 0028; 0029; 0030, (2017/08/08)
Novel compounds inhibiting ATR protein kinase include compounds of formula (I) disclosed herein, as well as liposome formulations comprising ATR protein kinase inhibitor compounds. The compositions are useful for the treatment of cancer.
6-Arylpyrazine-2-carboxamides: A New Core for Trypanosoma brucei Inhibitors
Rahmani, Rapha?l,Ban, Kung,Jones, Amy J.,Ferrins, Lori,Ganame, Danny,Sykes, Melissa L.,Avery, Vicky M.,White, Karen L.,Ryan, Eileen,Kaiser, Marcel,Charman, Susan A.,Baell, Jonathan B.
, p. 6753 - 6765 (2015/09/22)
From a whole-organism high throughput screen of approximately 87000 compounds against Trypanosoma brucei brucei, we recently identified eight new unique compounds for the treatment of human African trypanosomiasis. In an effort to understand the structure-activity relationships around these compounds, we report for the first time our results on a new class of trypanocides, the pyrazine carboxamides. Attracted by the low molecular weight (270 g·mol-1) of our starting hit (9) and its potency (0.49 μM), the SAR around the core was explored, leading to compounds having an EC50 as low as 25 nM against T. b. brucei and being more than 1500 times less toxic against mammalian L6 and HEK293 cell lines. The most potent compounds in the series were exquisitely selective for T. brucei over a panel of other protozoan parasites, showing an excellent correlation with the human infective parasite Trypanosoma brucei rhodesiense, the most potent compound (65) having an EC50 of 24 nM. The compounds are highly drug-like and are able to penetrate the CNS, their only limitation currently being their rate of microsomal metabolism. To that effect, efforts to identify potential metabolites of selected compounds are also reported.
Discovery of Potent and Selective Inhibitors of Ataxia Telangiectasia Mutated and Rad3 Related (ATR) Protein Kinase as Potential Anticancer Agents
Charrier, Jean-Damien,Durrant, Steven J.,Golec, Julian M. C.,Kay, David P.,Knegtel, Ronald M. A.,MacCormick, Somhairle,Mortimore, Michael,O'Donnell, Michael E.,Pinder, Joanne L.,Reaper, Philip M.,Rutherford, Alistair P.,Wang, Paul S. H.,Young, Stephen C.,Pollard, John R.
, p. 2320 - 2330 (2011/06/17)
DNA-damaging agents are among the most frequently used anticancer drugs. However, they provide only modest benefit in most cancers. This may be attributed to a genome maintenance network, the DNA damage response (DDR), that recognizes and repairs damaged DNA. ATR is a major regulator of the DDR and an attractive anticancer target. Herein, we describe the discovery of a series of aminopyrazines with potent and selective ATR inhibition. Compound 45 inhibits ATR with a Ki of 6 nM, shows >600-fold selectivity over related kinases ATM or DNA-PK, and blocks ATR signaling in cells with an IC50 of 0.42 μM. Using this compound, we show that ATR inhibition markedly enhances death induced by DNA-damaging agents in certain cancers but not normal cells. This differential response between cancer and normal cells highlights the great potential for ATR inhibition as a novel mechanism to dramatically increase the efficacy of many established drugs and ionizing radiation.
PYRAZINES USEFUL AS INHIBITORS OF ATR KINASE
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, (2011/12/02)
The present invention relates to pyrazine compounds useful as inhibitors of ATR protein kinase. The invention also relates to pharmaceutically acceptable compositions comprising the compounds of this invention; methods of treating various diseases, disorders, and conditions using the compounds of this invention; processes for preparing the compounds of this invention; intermediates for the preparation of the compounds of this invention; and methods of using the compounds in in vitro applications, such as the study of kinases in biological and pathological phenomena; the study of intracellular signal transduction pathways mediated by such kinases; and the comparative evaluation of new kinase inhibitors. The compounds of this invention have formula II; (Formula (II) wherein the variables are as defined herein.
