The present invention relates to a process comprising converting a compound of formula (I) into a compound of formula (II) by reaction with an organolithium reagent, which compound can be further converted into duocarmycin analogues consisting of a DNA-alkylating and a DNA-binding part, and still further into corresponding antibody-drug conjugates.
US9890159B2
申请人:——
公开号:US9890159B2
公开(公告)日:2018-02-13
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
作者:Lutz F. Tietze、Heiko J. Schuster、J. Marian von Hof、Sonja M. Hampel、Juan F. Colunga、Michael John
DOI:10.1002/chem.201001047
日期:2010.11.8
ortho‐Haloarylcarbamates like 1–4 show a high rotational barrier about the Naryl bond of up to 91.6 kJ mol−1 as found for 1, which was determined by 2D exchange NMR spectroscopy (EXSY). It was further demonstrated that the height of the barrier not only depends on the substituents at the axis of chirality, but is also influenced by electronic effects.