New Pyridinium Compound from Marine Sediment-Derived Bacterium S-1.

Molecules

College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Published: December 2024

AI Article Synopsis

  • The study highlights the potential of marine natural products as a resource for pharmaceuticals, focusing on a bacterium (S-1) found in shallow sea sediments.
  • Researchers isolated a novel compound (4-(dimethylamino)-1-(2-((4-hydroxybenzoyl)oxy)propyl)pyridin-1-ium) and 15 known cyclic dipeptides from S-1, using NMR and optical rotation for structural analysis.
  • The novel compound demonstrated antibacterial activity with a minimum inhibitory concentration (MIC) of 50 µg/mL, marking it as the first discovered pyridinium derivative and cyclic dipeptides from this marine source.

Article Abstract

The structural diversity of marine natural products is considered a potential resource for the pharmaceutical industry. In our study of marine-derived compounds, one bacterium S-1 was discovered to have the ability to produce bioactive natural products. After a further chemistry investigation, one novel 4-aminopyridinium derivative, 4-(dimethylamino)-1-(2-((4hydroxybenzoyl)oxy)propyl)pyridin-1-ium (), along with 15 known cyclic dipeptides (-) were isolated from the bacterium S-1 derived from a shallow sea sediment. The structures of compounds - were elucidated through comprehensive NMR spectroscopic and specific optical rotation (OR) data analyses. Compound showed antibacterial activity against with an MIC value of 50 µg/mL. This is the first study to discover a pyridinium derivative and cyclic dipeptides from

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http://dx.doi.org/10.3390/molecules30010007DOI Listing

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Article Synopsis
  • The study highlights the potential of marine natural products as a resource for pharmaceuticals, focusing on a bacterium (S-1) found in shallow sea sediments.
  • Researchers isolated a novel compound (4-(dimethylamino)-1-(2-((4-hydroxybenzoyl)oxy)propyl)pyridin-1-ium) and 15 known cyclic dipeptides from S-1, using NMR and optical rotation for structural analysis.
  • The novel compound demonstrated antibacterial activity with a minimum inhibitory concentration (MIC) of 50 µg/mL, marking it as the first discovered pyridinium derivative and cyclic dipeptides from this marine source.
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School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.

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Methods: Plates were streaked to isolate bacteria from the intestinal contents of fish.

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Comprehensive performance of a new-type hybrid membrane bioreactor applied to mainstream anammox process.

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