Kinesin spindle protein (KSP) inhibitors. Part 7: Design and synthesis of 3,3-disubstituted dihydropyrazolobenzoxazines as potent inhibitors of the mitotic kinesin KSP
作者:Robert M. Garbaccio、Edward S. Tasber、Lou Anne Neilson、Paul J. Coleman、Mark E. Fraley、Christy Olson、Jeff Bergman、Maricel Torrent、Carolyn A. Buser、Keith Rickert、Eileen S. Walsh、Kelly Hamilton、Robert B. Lobell、Weikang Tao、Vicki J. South、Ronald E. Diehl、Joseph P. Davide、Youwei Yan、Lawrence C. Kuo、Chunze Li、Thomayant Prueksaritanont、Carmen Fernandez-Metzler、Elizabeth A. Mahan、Donald E. Slaughter、Joseph J. Salata、Nancy E. Kohl、Hans E. Huber、George D. Hartman
DOI:10.1016/j.bmcl.2007.07.067
日期:2007.10
Observations from two structurally related series of KSP inhibitors led to the proposal and discovery of dihydropyrazolobenzoxazines that possess ideal properties for cancer drug development. The synthesis and characterization of this class of inhibitors along with relevant pharmacokinetic and in vivo data are presented. The synthesis is highlighted by a key [3+2] cycloaddition to form the pyrazolobenzoxazine core followed by diastereospecific installation of a quaternary center. (c) 2007 Elsevier Ltd. All rights reserved.