Synthesis of tryptophan-dehydrobutyrine diketopiperazine and biological activity of hangtaimycin and its co-metabolites
作者:Houchao Xu、Anne Wochele、Minghe Luo、Gregor Schnakenburg、Yuhui Sun、Heike Brötz-Oesterhelt、Jeroen S Dickschat
DOI:10.3762/bjoc.18.120
日期:——
An improved synthesis for tryptophan-dehydrobutyrine diketopiperazine (TDD), a co-metabolite of the hybrid polyketide/non-ribosomal peptide hangtaimycin, starting from ʟ-tryptophan is presented. Comparison to TDD isolated from the hangtaimycin producer Streptomyces spectabilis confirmed its S configuration. The X-ray structure of the racemate shows an interesting dimerisation through hydrogen bridges