Sirasani, Gopal Paul, Tapas Andrade, Rodrigo B. Concise Total Synthesis of (+)-Crocacin C The cytotoxic natural product (+)-crocacin C (<b>1</b>) has been synthesized in 10 linear steps from commercially available Evans’ chiral propionimide in 5% overall yield (8 steps from Evans’ chiral dipropionate synthon). No protecting groups were utilized. Crocacin;Synthesi;synthon;propionimide;crocacin;cytotoxic;chiral;Evans;Concise;dipropionate 2008-08-15
    https://acs.figshare.com/articles/journal_contribution/Concise_Total_Synthesis_of_Crocacin_C/2920732
10.1021/jo800906p.s001