Journal : J. Med. Chem.
Title : Discovery of a 5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one (MK-2461) inhibitor of c-Met kinase for the treatment of cancer.
Year : 2011
Volume : 54
Issue : 12
First Page : 4092
Last Page : 4108
Authors : Katz JD, Jewell JP, Guerin DJ, Lim J, Dinsmore CJ, Deshmukh SV, Pan BS, Marshall CG, Lu W, Altman MD, Dahlberg WK, Davis L, Falcone D, Gabarda AE, Hang G, Hatch H, Holmes R, Kunii K, Lumb KJ, Lutterbach B, Mathvink R, Nazef N, Patel SB, Qu X, Reilly JF, Rickert KW, Rosenstein C, Soisson SM, Spencer KB, Szewczak AA, Walker D, Wang W, Young J, Zeng Q.
Abstract : c-Met is a transmembrane tyrosine kinase that mediates activation of several signaling pathways implicated in aggressive cancer phenotypes. In recent years, research into this area has highlighted c-Met as an attractive cancer drug target, triggering a number of approaches to disrupt aberrant c-Met signaling. Screening efforts identified a unique class of 5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one kinase inhibitors, exemplified by 1. Subsequent SAR studies led to the development of 81 (MK-2461), a potent inhibitor of c-Met that was efficacious in preclinical animal models of tumor suppression. In addition, biochemical studies and X-ray analysis have revealed that this unique class of kinase inhibitors binds preferentially to the activated (phosphorylated) form of the kinase. This report details the development of 81 and provides a description of its unique biochemical properties.