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
在 C-5 上具有酯基的吡咯并三嗪被制备并评估为 EGFR 和 HER2 受体酪氨酸激酶的抑制剂,这些激酶是癌症治疗的验证靶点。C-5 酯 (15) 至少与其 C-6 酯类似物 (17) 一样有效,这是已知系列吡咯并三嗪 EGRF/HER2 激酶抑制剂的一个例子,显示出良好的生化和细胞活性。C-5 酯是由吡咯 2,3-二酯合成的,该二酯是通过新的一锅法制备的。这涉及容易获得的 α-氨基酸酯或酮的 N-甲苯磺酰基衍生物与三苯基膦和乙炔二羧酸二乙酯的反应,通过分子内 Wittig 烯化反应形成 3-吡咯啉。3-吡咯啉中间体没有被分离,而是直接用碱处理以消除甲苯亚磺酸并以良好的产率生成吡咯2,3-二酯。