Total synthesis of Piperazic acid-containing natural products: Piperazimycin A and Chloptosin Liu Bin
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Key challenges: 1) formation of the piperazic acid– piperazic acid dipeptide moiety 2) formation of the macrocycle by macrolactonisation
Generation of acyl azides for peptide coupling 2. 1.
Feature: enantioselective preparation of the piperazic acid
Generation of acyl chloride for peptide coupling
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