Small molecules with potent osteogenic-inducing activity in osteoblast cells
摘要:
A chemical screen of 45,000 compounds from a diverse collection led to the identification of two series of small molecules with potent osteogenic activity in mouse MC3T3-E1 osteoblast cells. The first chemical group was characterized by an amino benzothiazole core (AMG0892 series) and the second group by a naphthyl amide core (AMG0309 series). Using alkaline phosphatase (ALP), osteocalcin (OCL) and calcium as markers of osteoblast differentiation and mineralization, both chemical series showed EC(50)s in the 0.01-0.2 mu M range and were consistent for all three markers. Compounds inhibited cell proliferation, had no effect on apoptosis and showed evidence for CREB pathway activity. The present compounds represent some of the most potent osteogenic small molecules reported to date and provide new tools for elucidating signaling mechanisms in osteoblasts. (C) 2009 Elsevier Ltd. All rights reserved.
Selected compounds are effective for prophylaxis and treatment of diseases, such as HGF mediated diseases. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving, cancer and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.
Naphthamides as Novel and Potent Vascular Endothelial Growth Factor Receptor Tyrosine Kinase Inhibitors: Design, Synthesis, and Evaluation
作者:Jean-Christophe Harmange、Matthew M. Weiss、Julie Germain、Anthony J. Polverino、George Borg、James Bready、Danlin Chen、Deborah Choquette、Angela Coxon、Tom DeMelfi、Lucian DiPietro、Nicholas Doerr、Juan Estrada、Julie Flynn、Russell F. Graceffa、Shawn P. Harriman、Stephen Kaufman、Daniel S. La、Alexander Long、Matthew W. Martin、Sesha Neervannan、Vinod F. Patel、Michele Potashman、Kelly Regal、Phillip M. Roveto、Michael L. Schrag、Charlie Starnes、Andrew Tasker、Yohannes Teffera、Ling Wang、Ryan D. White、Douglas A. Whittington、Roger Zanon
DOI:10.1021/jm701097z
日期:2008.3.1
A series of naphthyl-based compounds were synthesized as potential inhibitors of vascular endothelial growth factor (VEGF) receptors. Investigations of structure-activity relationships led to the identification of a series of naphthamides that are potent inhibitors of the VEGF receptor tyrosine kinase family. Numerous analogues demonstrated low nanomolar inhibition of VEGF-dependent human umbilical vein endothelial cell (HUVEC) proliferation, and of these several compounds possessed favorable pharmacokinetic (PK) profiles. In particular, compound 48 demonstrated significant antitumor efficacy against established HT29 human colon adenocarcinoma xenografts implanted in athymic mice. A full account of the preparation, structure-activity relationships, pharmacokinetic properties, and pharmacology of analogues within this series is presented.