Enantiospecific Synthesis of a Protected Equivalent of APTO, the β-Amino Acid Fragment of Microsclerodermins C and D, by Aziridino-γ-lactone Methodology
作者:Aurélie Tarrade-Matha、Marcelo Siqueira Valle、Pierre Tercinier、Philippe Dauban、Robert H. Dodd
DOI:10.1002/ejoc.200801000
日期:2009.2
the preparation of the aziridino-γ-lactone 46 from L-gulose by a procedure previously developed in our laboratory for simpler substrates. Regioselective opening of the aziridine at C-2 by acetate anion, an intrinsic reactivity pattern of aziridino-γ-lactones, followed by a Heck reaction to install the terminal phenyl group, provides lactone 48. This, a lactonized form of APTO, can be considered an activated