A new synthetic route to tyromycin A and its analogue from renewable resources
作者:Fabrizio Roncaglia、Christian V. Stevens、Franco Ghelfi、Marijke Van der Steen、Mariella Pattarozzi、Laurent De Buyck
DOI:10.1016/j.tet.2008.11.091
日期:2009.2
involving as featuring steps a transition metal catalyzed atom transfer radical cyclization and a functional rearrangement of the polyhalogenated 2-pyrrolidinones thus obtained, are described. Both routes use 10-undecenoic acid, a renewable source from castor oil, as starting material for the preparation of the pivotal intermediates α,α,α′,α′-tetrachlorodicarboxylic acids.