Macrocyclic bisindolylmaleimides as inhibitors of protein kinase C and glycogen synthase kinase-3
作者:Han-Cheng Zhang、Kimberly B. White、Hong Ye、David F. McComsey、Claudia K. Derian、Michael F. Addo、Patricia Andrade-Gordon、Annette J. Eckardt、Bruce R. Conway、Lori Westover、Jun Z. Xu、Richard Look、Keith T. Demarest、Stuart Emanuel、Bruce E. Maryanoff
DOI:10.1016/s0960-894x(03)00644-9
日期:2003.9
Efficient methods were developed to synthesize a novel series of macrocyclic bisindolylmaleimides containing linkers with multiple heteroatoms. Potent inhibitors (single digit nanomolar IC50) for PKC-beta and GSK-3beta were identified, and compounds showed good selectivity over PKC-alpha, -gamma, delta, -epsilon, and -zeta. Representative compound 5a also had high selectivity in a screening panel of 10 other protein kinases. In cell-based functional assays, several compounds effectively blocked interleukin-8 release induced by PKC-beta11 and increased glycogen synthase activity by inhibiting GSK-3beta. (C) 2003 Elsevier Ltd. All rights reserved.