Belizentrin, a highly bioactive macrocycle from the dinoflagellate Prorocentrum belizeanum
Humberto J Domínguez1, José G Napolitano, M Teresa Fernández-Sánchez
1Institute for Bio-Organic Chemistry "Antonio González", Center for Biomedical Research of the Canary Islands, and ∥Department of Chemical Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna , 38206 La Laguna, Tenerife, Spain.
Abstract:
Belizentrin (1), a novel 25-membered polyketide-derived macrocycle, was isolated from cultures of the marine dinoflagellate Prorocentrum belizeanum. This metabolite is the first member of an unprecedented class of polyunsaturated and polyhydroxylated macrolactams. The structure of 1 was primarily determined by NMR and computational methods. Pharmacological assays with cerebellar cells showed that 1 produces important changes in neuronal network integrity at nanomolar concentrations.


