Rubrivivaxin, a new cytotoxic and cyclooxygenase-I inhibitory metabolite from Rubrivivax benzoatilyticus JA2

Abstract

A new phenol terpenoid ester metabolite was isolated from the culture supernatant of Rubrivivax benzoatilyticus JA2 when the organism grown on L-phenylalanine as sole source of nitrogen under photoheterotrophic condition. The compound was characterized by HPLC, LCMS, IR, NMR (1H, 13C) and Mass spectrometry, as a 3, 4-dihydroxybenzoyl-terpenoid ester [IUPAC: 3, 4-dihydroxy, 5-carboxy, 3-methylpentyl ester], which has a molecular mass (m/z) of 298 and we designated as rubrivivaxin. The significance of cyclooxygenase-I (COX-I) inhibitory, antimicrobial, cytotoxic activities against U937 (Human leukemic monocyte lymphoma) and Jurkat (T lymphocyte) cell lines conferred by rubrivivaxin. © 2010 Springer Science+Business Media B.V.