Tri- and Tetrasubstituted Pyrazole Derivates: Regioisomerism Switches Activity from p38MAP Kinase to Important Cancer Kinases
摘要:
In the course of searching for new p38 alpha MAP kinase inhibitors, we found that the regioisomeric switch from 3-(4-fluorophenyl)-4-(pyridin-4-yl)-1-(aryl)-1H-pyrazol-5-amine to 4-(4-fluorophenyl)-3-(pyridin-4-yl)-1-(aryl)-1H-pyrazol-5-amine led to an almost complete loss of p38a inhibition, but they showed activity against important cancer kinases. Among the tested derivatives, 4-(4-fluorophenyl)-3-(pyridin-4-yl)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-S-amine (6a) exhibited the best activity, with IC50 in the nanomolar range against Src, B-Raf wt, B-Raf V600E, EGFRs, and VEGFR-2, making it a good lead for novel anticancer programs.
Tri- and Tetrasubstituted Pyrazole Derivates: Regioisomerism Switches Activity from p38MAP Kinase to Important Cancer Kinases
摘要:
In the course of searching for new p38 alpha MAP kinase inhibitors, we found that the regioisomeric switch from 3-(4-fluorophenyl)-4-(pyridin-4-yl)-1-(aryl)-1H-pyrazol-5-amine to 4-(4-fluorophenyl)-3-(pyridin-4-yl)-1-(aryl)-1H-pyrazol-5-amine led to an almost complete loss of p38a inhibition, but they showed activity against important cancer kinases. Among the tested derivatives, 4-(4-fluorophenyl)-3-(pyridin-4-yl)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-S-amine (6a) exhibited the best activity, with IC50 in the nanomolar range against Src, B-Raf wt, B-Raf V600E, EGFRs, and VEGFR-2, making it a good lead for novel anticancer programs.
[EN] PYRIDINYLPYRAZOLES FOR USE AS KINASE MODULATORS FOR THE TREATMENT OF CANCER<br/>[FR] PYRIDINYLPYRAZOLES DESTINÉS À ÊTRE UTILISÉS COMME MODULATEURS DE KINASE DANS LE TRAITEMENT DU CANCER
申请人:SYNOVO GMBH
公开号:WO2013046041A1
公开(公告)日:2013-04-04
Compounds of the substituted pyrazole class of Formula (I) as treatments for cancer are reported. A method of treating cancer in which a compound that inhibits the activity of receptor kinases is described. Said method is effective and can be provided in addition to standard therapies, notably chemotherapy using cytotoxic drugs and other forms of immune therapy including therapeutic vaccines.
Tri- and Tetrasubstituted Pyrazole Derivates: Regioisomerism Switches Activity from p38MAP Kinase to Important Cancer Kinases
作者:Bassam Abu Thaher、Martina Arnsmann、Frank Totzke、Jan E. Ehlert、Michael H. G. Kubbutat、Christoph Schächtele、Markus O. Zimmermann、Pierre Koch、Frank M. Boeckler、Stefan A. Laufer
DOI:10.1021/jm201391u
日期:2012.1.26
In the course of searching for new p38 alpha MAP kinase inhibitors, we found that the regioisomeric switch from 3-(4-fluorophenyl)-4-(pyridin-4-yl)-1-(aryl)-1H-pyrazol-5-amine to 4-(4-fluorophenyl)-3-(pyridin-4-yl)-1-(aryl)-1H-pyrazol-5-amine led to an almost complete loss of p38a inhibition, but they showed activity against important cancer kinases. Among the tested derivatives, 4-(4-fluorophenyl)-3-(pyridin-4-yl)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-S-amine (6a) exhibited the best activity, with IC50 in the nanomolar range against Src, B-Raf wt, B-Raf V600E, EGFRs, and VEGFR-2, making it a good lead for novel anticancer programs.