- Discovery of small molecule FLT3 inhibitors that are able to overcome drug-resistant mutations
-
Herein we report the discovery of 1-(5-(tert-butyl)isoxazol-3-yl)-3- (3-fluorophenyl)urea derivatives as new FLT3 inhibitors that are able to overcome the drug resistance mutations: the secondary D835Y and F691L mutations on the basis of the internal tandem duplications (ITD) mutation of FLT3 (FLT3-ITD/D835Y and FLT3-ITD/F691L, respectively). The most potent compound corresponds to 1-(5-(tert-butyl)isoxazol-3-yl)-3-(4-((6,7-dimethoxyquinolin-4-yl)oxy)-3- fluorophenyl)urea (4d), which showed IC50s (half maximal inhibitory concentrations) of 0.072 nM, 5.86 nM and 3.48 nM against FLT3-ITD, FLT3-ITD/F691L and FLT3-ITD/D835Y, respectively. Compound 4d also showed good selectivity for FLT3 in a kinase profiling assay. Collectively, 4d could be a good lead compound and deserves further in-depth studies.
- Chen, Ming,Lai, Shusheng,Li, Bolin,Li, Linli,Nan, Jinshan,Shen, Chenjian,Wang, Tianqi,Wang, Yifei,Yang, Shengyong,Zhang, Guo,Zhang, Wenqing,Zhong, Jiemin
-
supporting information
(2020/10/02)
-
- QUINOLINE DERIVATIVES
-
The invention concerns quinoline derivatives of Formula I or a pharmaceutically-acceptable salt thereof, wherein each of X1, p, R1, q, R2, R3, R4, R5Ring A, r and R6 has any of the meanings defined hereinbefore in the description; processes for their preparation, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use in the treatment of cell proliferative disorders.
- -
-
Page/Page column 42-43
(2009/04/24)
-