5-((4-Aminopiperidin-1-yl)methyl)pyrrolotriazine dual inhibitors of EGFR and HER2 protein tyrosine kinases
作者:Harold Mastalerz、Ming Chang、Ping Chen、Brian E. Fink、Ashvinikumar Gavai、Wen-Ching Han、Walter Johnson、David Langley、Francis Y. Lee、Kenneth Leavitt、Punit Marathe、Derek Norris、Simone Oppenheimer、Bogdan Sleczka、James Tarrant、John S. Tokarski、Gregory D. Vite、Dolatrai M. Vyas、Henry Wong、Tai W. Wong、Hongjian Zhang、Guifen Zhang
DOI:10.1016/j.bmcl.2007.06.019
日期:2007.9
Pyrrolotriazine dual EGFR/HER2 kinase inhibitors with a 5-((4-aminopiperidin-1-yl)methyl) solubilizing group were found to be superior to analogs with previously reported C-5 solubilizing groups. New synthetic methodology was developed for the parallel synthesis of C-4 analogs with the new solubilizing group. Interesting new leads were evaluated in tumor xenograft models and the C-4 aminofluorobenzylindazole, le, was found to exhibit the best antitumor activity. It is hypothesized that this solubilizing group extends into the ribose-phosphate portion of the ATP binding pocket and enhances the binding affinity of the inhibitor. (C) 2007 Elsevier Ltd. All rights reserved.