Second-Generation Peptidomimetic Inhibitors of Protein Farnesyltransferase Demonstrating Improved Cellular Potency and Significant in Vivo Efficacy
作者:Stephen J. O'Connor、Kenneth J. Barr、Le Wang、Bryan K. Sorensen、Andrew S. Tasker、Hing Sham、Shi-Chung Ng、Jerome Cohen、Edward Devine、Sajeev Cherian、Badr Saeed、Haichao Zhang、Jang Yun Lee、Robert Warner、Stephen Tahir、Peter Kovar、Patricia Ewing、Jeffrey Alder、Michael Mitten、Juan Leal、Kennan Marsh、Joy Bauch、Daniel J. Hoffman、Said M. Sebti、Saul H. Rosenberg
DOI:10.1021/jm9901935
日期:1999.9.1
The synthesis and evaluation of analogues of previously reported farnesyltransferase inhibitors, pyridyl benzyl ether 3 and pyridylbenzylamine 4, are described. Substitution of 3 at the 5-position of the core aryl ring resulted in inhibitors of equal or less potency against the enzyme and decreased efficacy in a cellular assay against Ras processing by the enzyme. Substitution of 4 at the benzyl nitrogen yielded 26, which showed improved efficacy and potency and yet presented a poor pharmacokinetic profile. Further modification afforded 30, which demonstrated a dramatically improved pharmacokinetic profile. Compounds 26 and 29 demonstrated significant in vivo efficacy in nude mice inoculated with MiaPaCa-2, a human pancreatic tumorderived cell line.