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Azaphilones and Meroterpenoids from the Soft Coral-Derived Fungus Penicillium glabrum glmu003.

Han ZhangXin-Xin LeiSurun ShaoXuefeng ZhouYunqiu LiBin Yang
Published in: Chemistry & biodiversity (2021)
Two new azaphilone compounds, daldinins G (1) and H (2), together with nine known compounds daldinin D (3), sargassopenilline B (4), austalide V (5), austalide K (6), austalide P (7), austalide P acid (8), austalide H (9), 13-O-deacetyaustalide I (10), and 17-O-demethylaustalide B (11), were isolated from the soft coral-derived fungus Penicillium glabrum glmu003. The new structures of 1 and 2 were elucidated on the basis of 1D and 2D NMR, mass spectra, and electronic circular dichroism (ECD) data analysis. Compound 5 showed weak inhibitory activity against pancreatic lipase (PL) with IC50 value of 23.9 μg/mL.
Keyphrases
  • data analysis
  • high resolution
  • magnetic resonance
  • density functional theory
  • mass spectrometry