Synthesis of novel steroid analogues containing nitrile and disulfide moieties via palladium-catalyzed cross-coupling reactions
作者:Christoph D. Mayer、Lars Allmendinger、Franz Bracher
DOI:10.1016/j.tet.2011.11.076
日期:2012.2
building block for introduction of the C+D ring motif of steroids to prepare series of novel secosteroids containing nitrile or disulfide functionalities. Key steps in synthesis of these novel steroid analogues are palladium-catalyzed cross-coupling reactions. All target compounds were characterized by comprehensive analysis; in particular the stereochemicalassignments of dinitriles 12a and 12b could be