Frontiers in Chemistry (Feb 2020)

Dimeric Pimprinine Alkaloids From Soil-Derived Streptomyces sp. NEAU-C99

  • Zhiyin Yu,
  • Zhiyin Yu,
  • Hao Jiang,
  • Li Wang,
  • Feng-Xian Yang,
  • Jian-Ping Huang,
  • Chongxi Liu,
  • Chongxi Liu,
  • Xiaowei Guo,
  • Xiaowei Guo,
  • Wensheng Xiang,
  • Sheng-Xiong Huang

DOI
https://doi.org/10.3389/fchem.2020.00095
Journal volume & issue
Vol. 8

Abstract

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Six new pimprinine alkaloids (1–6), including four dimers, dipimprinines A–D (1–4), and two monomers, (±)-Pimprinol D (5), and pimprinone A (6), along with six known congeners (7–12), were isolated from a soil-derived actinomycete Streptomyces sp. NEAU-C99. Structures of the new compounds were elucidated by extensive spectroscopic analyses, single-crystal X-ray diffractions, and ECD calculations. Dipimprinines A–D (1–4) showed weak cytotoxic activities against five tumor cell lines, including HL-60, SMMC-7721, A-549, MCF-7, and SW-480, with IC50 values ranging from 12.7 to 30.7 μM.

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