three or four steps starting from aminoarylpyrrole and pyrazole carboxylates through the cyclisation of a Vilsmeier–Haack intermediate. This synthesis was enhanced by diverse N-protections of the aza-heterocycle and furnish new series with potentialbiologicalinterest.
Synthesis and biological evaluation of novel pyrrolopyrrolizinones as anticancer agents
作者:C. Rochais、V. Lisowski、P. Dallemagne、S. Rault
DOI:10.1016/j.bmc.2006.09.022
日期:2006.12
We herein describe the synthesis of novel 3-(het)aryl-pyrrolo[2,3-b]pyrrolizin-8(1H)-ones starting from commercial (het)aryl-acetonitriles. A more convergent route was also described through the first synthesis of ethyl 3-amino-4-bromo-1H-pyrrole-2-carboxylate 17. The antiproliferative activities of these compounds were tested toward various cell lines and one of them 10k shows interesting cytotoxic properties, although it was less potent than our lead compound in thiophene series 1k. (c) 2006 Elsevier Ltd. All rights reserved.