Debromooscillatoxins G and I from the Cyanobacterium Moorea producens

Abstract
Debromooscillatoxins G and I (1 and 3) were isolated from the marine cyanobacterium Moorea producens collected in Okinawa. Their structures were determined based on spectroscopic data, including nuclear magnetic resonance (NMR) and high resolution mass spectrometry (HRMS). Both the isolated compounds showed moderate cytotoxicity and diatom growth inhibition at a concentration of 10 mu g/mL.