65948-72-3Relevant academic research and scientific papers
Optimization of 4-phenylamino-3-quinolinecarbonitriles as potent inhibitors of Src kinase activity
Boschelli,Ye,Wang,Dutia,Johnson,Wu,Miller,Powell,Yaczko,Young,Tischler,Arndt,Discafani,Etienne,Gibbons,Grod,Lucas,Weber,Boschelli
, p. 3965 - 3977 (2007/10/03)
Subsequent to the discovery of 4-[(2,4-dichlorophenyl)amino] -6,7-dimethoxy-3-quinolinecarbonitrile (1a) as an inhibitor of Src kinase activity (IC50 = 30 nM) several additional analogues were prepared. Optimization of the C-4 anilino group of la led to lc which contains a 2,4-dichloro-5-methoxy- substituted aniline. Replacement of the methoxy group at C-7 of 1c with a 3-(morpholin-4-yl)propoxy group provided 2c resulting in increased inhibition of both Src kinase activity and Src-mediated cell proliferation. Analogues of 2c with other trisubstituted anilines at C-4 were also potent Src inhibitors and the propoxy group of 2c was preferred over ethoxy butoxy or pentoxy. Replacement of the morpholine group of 2c with a 4-methylpiperazine group provided 31a which had an IC50 of 1.2 nM in the Src enzymatic assay an IC50 of 100 nM for the inhibition of Src-dependent cell proliferation and was selective for Src over non-Src family kinases. Compound 31a which had higher 1 and 4 h plasma levels than 2c effectively inhibited tumor growth in xenograft models.
