摘要:
Efforts to identify potent small molecule inhibitors of PI3 kinase and mTOR led to the discovery of the exceptionally potent 6-aryl morpholino thienopyrimidine 6. In an effort to reduce the melting point in analogs of 6, the thienopyrimidine was modified by the addition of a methyl group to disrupt planarity. This modi. cation resulted in a general improvement in in vivo clearance. This discovery led to the identification of GNE-477 (8), a potent and efficacious dual PI3K/mTOR inhibitor. (C) 2010 Elsevier Ltd. All rights reserved.