Aminoquinoline derivatives with antiproliferative activity against melanoma cell line
作者:Bong Soo Nam、Hwan Kim、Chang-Hyun Oh、So Ha Lee、Seung Joo Cho、Tae Bo Sim、Jung-Mi Hah、Dong Jin Kim、Jung Hoon Choi、Kyung Ho Yoo
DOI:10.1016/j.bmcl.2009.05.007
日期:2009.7
The synthesis of a novel series of aminoquinoline derivatives 1a–p and their antiproliferativeactivitiesagainst A375 human melanomacellline were described. Most compounds showed superior antiproliferativeactivities to Sorafenib as a reference compound. Among them, quinolinyloxymethylphenyl compounds 1k and 1l exhibited potent activities (IC50 = 0.77 and 0.79 μM, respectively) and excellent selectivity
STAT3 is a transcription factor that modulates survival-directed transcription. It is persistently activated in many human cancers. Literature has shown that sorafenib, Raf kinase inhibitor, reduces Phospho-STAT3 and induces cell death. A series of sorafenib derivatives were synthesized as new inhibitors for STAT3. Urea, sulfonamide, and carboxamide linkers brought out different SARs from the end of sorafenib. Urea and carboxamide linked derivatives showed greater inhibition against STAT3 activity than sulfonamide linked derivatives. In particular, 1-(4-chloro-3-(trifluoromethyl)phenyl)-3-(4-(4-cyanophenoxy) phenyl)urea (1), a urea linker, was as potent as sorafenib in reducing P-STAT3 level and cell death but no inhibition for Raf activity. Such result provides a new lead for the design of STAT3 inhibitors. (C) 2011 Elsevier Masson SAS. All rights reserved.