Pyrrolotriazine-5-carboxylate ester inhibitors of EGFR and HER2 protein tyrosine kinases and a novel one-pot synthesis of C-4 subsitituted pyrrole-2,3-dicarboxylate diesters
作者:Harold Mastalerz、Ashvinikumar V Gavai、Brian Fink、Charles Struzynski、James Tarrant、Gregory D Vite、Tai W Wong、Guifen Zhang、Dolatrai M Vyas
DOI:10.1139/v06-037
日期:2006.4.1
2,3-diesters that were made by a new, one-pot procedure. This involved reaction of readily available N-tosyl derivatives of α-amino acid esters or ketones with triphenylphosphine and diethyl acetylenedicarboxylate to form 3-pyrrolines via an intramolecular Wittig olefination. The 3-pyrroline intermediates were not isolated but treated directly with base to eliminate toluenesulfinic acid and generate