作者:Emily A. Peterson、Paul S. Andrews、Xuhai Be、Alessandro A. Boezio、Tammy L. Bush、Alan C. Cheng、James R. Coats、Adria E. Colletti、Katrina W. Copeland、Michelle DuPont、Russell Graceffa、Barbara Grubinska、Jean-Christophe Harmange、Joseph L. Kim、Erin L. Mullady、Philip Olivieri、Laurie B. Schenkel、Mary K. Stanton、Yohannes Teffera、Douglas A. Whittington、Ti Cai、Daniel S. La
DOI:10.1016/j.bmcl.2011.02.007
日期:2011.4
mTOR is part of the PI3K/AKT pathway and is a central regulator of cell growth and survival. Since many cancers display mutations linked to the mTOR signaling pathway, mTOR has emerged as an important target for oncology therapy. Herein, we report the discovery of triazine benzimidazole inhibitors that inhibit mTOR kinase activity with up to 200-fold selectivity over the structurally homologous kinase PI3K alpha. When tested in a panel of cancer cell lines displaying various mutations, a selective inhibitor from this series inhibited cellular proliferation with a mean IC50 of 0.41 mu M. Lead compound 42 demonstrated up to 83% inhibition of mTOR substrate phosphorylation in a murine pharmacodynamic model. (C) 2011 Elsevier Ltd. All rights reserved.