Precursor-Directed Biosynthesis of Talaroenamine Derivatives Using a Yellow River Wetland-Derived Penicillium malacosphaerulum

J Nat Prod. 2021 Nov 26;84(11):2923-2928. doi: 10.1021/acs.jnatprod.1c00696. Epub 2021 Nov 11.

Abstract

Precursor-directed biosynthesis was used to introduce selected aniline derivatives into the talaroenamine pathway, which had recently been defined from a Yellow River wetland-derived Penicillim malacosphaerulum HPU-J01. The known talaroenamine B (1) and six previously undescribed talaroenamine derivatives, talaroenamines F-K (2-7), were generated and structurally characterized. The aniline derivatives are introduced via nonenzymatic addition to the reactive intermediate cyclohexanedione. Compound 2 was active against Bacillus cereus with an MIC value of 0.85 μg/mL.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / metabolism*
  • Aniline Compounds / chemistry*
  • Fermentation
  • Penicillium / metabolism*
  • Rivers
  • Wetlands

Substances

  • Amines
  • Aniline Compounds

Supplementary concepts

  • Penicillium malacosphaerulum