Discovery of 2-arylthieno[3,2-d]pyrimidines containing 8-oxa-3-azabi-cyclo[3.2.1]octane in the 4-position as potent inhibitors of mTOR with selectivity over PI3K
作者:Jeroen C. Verheijen、Ker Yu、Lourdes Toral-Barza、Irwin Hollander、Arie Zask
DOI:10.1016/j.bmcl.2009.10.075
日期:2010.1
2-Aryl-4-morpholinothieno[3,2-d]pyrimidines are known PI3K inhibitors. This class of compounds also potently inhibited the homologous enzyme mTOR. Replacement of the morpholine group in these compounds with an 8-oxa-3-azabicyclo[3.2.1]octane group led to mTOR inhibitors with selectivity over PI3K. Optimization of the 2-aryl substituent led to the discovery of 2-(4-ureidophenyl)-thienopyrimidines as highly potent (IC(50) < 1 nM) mTOR inhibitors with excellent selectivity (up to > 1000-fold) over PI3K and good potency in a cellular proliferation assay (IC(50) < 50 nM). (C) 2009 Elsevier Ltd. All rights reserved.