Lodopyridones D - G from a marine-derived bacterium Saccharomonospora sp

Nat Prod Res. 2023 Jan 30:1-6. doi: 10.1080/14786419.2023.2173192. Online ahead of print.

Abstract

The intensive investigation of chemical components from the culture broth of the bacterium Saccharomonospora sp. CNQ-490 has yielded four new natural products, lodopyridones D - G (1 - 4) along with the previously reported compounds, lodopyridones A - C (5 - 7) and cotteslosin A (8). The planar structures of the lodopyridones D - G (1 - 4) were elucidated by interpreting the mass spectrometry, ultraviolet (UV) spectroscopy, and 1D and 2D nuclear magnetic spectroscopy (NMR) data, as well as comparing NMR data with those of the lodopyridones A - C (5 - 7).

Keywords: HPLC-UV guided fractionation; Saccharomonospora sp.; lodopyridones D − G; marine-derived bacterium.