Synthesis of antitumor 6-alkylidenepenicillanate sulfones and related 3-alkylidene-2-azetidinones
作者:Grigory Veinberg、Irina Shestakova、Maxim Vorona、Iveta Kanepe、Edmunds Lukevics
DOI:10.1016/j.bmcl.2003.09.078
日期:2004.1
6-Alkylidenepenicillanate sulfoxides and sulfones were synthesized on the base of 6-oxopenicillanate esters. The targeted splitting of their thiazolidine ring led to the formation of 3-alkylidene substituted 4-heteryldithio and 4-methylsulfonyl azetidin-2-ones. Some of mono and bicyclic beta-lactams revealed potent cytotoxic properties towards monolayer tumor cells in < 10-muM concentrations. (C) 2003 Elsevier Ltd. All rights reserved.