Enantio- and Diastereoselective Synthesis of Duocarmycine-Based Prodrugs for a Selective Treatment of Cancer by Epoxide Opening
作者:Lutz F. Tietze、Heiko J. Schuster、Sonja M. Hampel、Stephan Rühl、Roland Pfoh
DOI:10.1002/chem.200700988
日期:2008.1.18
the enantio- und diastereoselective synthesis of the prodrug 2, the N-tert-butyloxycarbonyl-protected amine 7 was alkylated with the enantiopure epoxide 14 to give the amide 10. A regio- and facial-selective metal-mediated cyclisation by using a cuprate led to 17 with an inversion of configuration at C10. Subsequent transformation of the hydroxy group in 17 by using the Appel procedure afforded (1S,10R)-9