Bulbiferates A and B: Antibacterial Acetamidohydroxybenzoates from a Marine Proteobacterium, Microbulbifer sp

Autor: Doug R. Braun, Dinith R Jayanetti, Tim S. Bugni, Kenneth J. Barns, Scott R. Rajski
Rok vydání: 2019
Předmět:
Zdroj: Journal of Natural Products. 82:1930-1934
ISSN: 1520-6025
0163-3864
DOI: 10.1021/acs.jnatprod.9b00312
Popis: Here we report the discovery of two new 3-acetamido-4-hydroxybenzoate esters, bulbiferates A (1) and B (2), isolated from Microbulbifer sp. cultivated from the marine tunicate Ecteinascidia turbinata. The structures of 1 and 2 were determined by analysis of 2D NMR and MS data. Additionally, three synthetic analogues (3-5), differing in ester sizes/lengths, were prepared for the purposes of evaluating potential structure-activity relationships; no clear correlations tying ester lengths to activity were evident. Bulbiferates A (1) and B (2) demonstrated antibacterial activity against both Escherichia coli (E. coli) and methicillin-sensitive Staphylococcus aureus (MSSA), whereas the synthetic analogues 3 and 4 displayed activity only against MSSA.
Databáze: OpenAIRE