Synthesis and antitumor-evaluation of cyclopropyl-containing combretastatin analogs
摘要:
Several derivatives of combretastatin have been prepared bearing a cyclopropyl unit instead of the natural occurring cis-double bond. Final products and synthetic intermediates were evaluated for their cytotoxic properties in two human cancer cell lines. (C) 2009 Elsevier Ltd. All rights reserved.
protonolysis of the Ir–C(vinyl) bond. Instead, mechanistic data are consistent with an anion-involved alcoholysis pathway involving ionization of (NCP)IrCl(vinyl) via EtOH-for-Cl substitution and reversible protonation of Cl– ion with an Ir(III)-bound EtOH, followed by β-H elimination of the ethoxy ligand and C(vinyl)–H reductive elimination. The use of an amine is key to the monohydride mechanism by promoting
Synthesis and antitumor-evaluation of cyclopropyl-containing combretastatin analogs
作者:Rita Fürst、István Zupkó、Ágnes Berényi、Gerhard F. Ecker、Uwe Rinner
DOI:10.1016/j.bmcl.2009.10.064
日期:2009.12
Several derivatives of combretastatin have been prepared bearing a cyclopropyl unit instead of the natural occurring cis-double bond. Final products and synthetic intermediates were evaluated for their cytotoxic properties in two human cancer cell lines. (C) 2009 Elsevier Ltd. All rights reserved.