2006
DOI: 10.1021/np060188l
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E/Z-Rubrolide O, an Anti-inflammatory Halogenated Furanone from the New Zealand Ascidian Synoicum n. sp.

Abstract: Bioassay-directed fractionation of extracts of a Synoicum n. sp. ascidian from New Zealand led to the isolation of the principal anti-inflammatory component, which was identified by spectroscopic methods as a new member of the rubrolide family, rubrolide O (1), existing as a mixture of E/Z isomers.

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Cited by 74 publications
(57 citation statements)
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“…1), secondary metabolites produced by marine ascidians [14][15][16][17]. All the synthetic analogues were able to interfere with the chloroplast electron transport chain and the most active compound showed an IC 50 (concentration causing 50% inhibition) value of 1.1 ± 0.2 M, only one order of magnitude higher than that of the commercial herbicide Diuron (0.27 M) [17].…”
Section: Introductionmentioning
confidence: 99%
“…1), secondary metabolites produced by marine ascidians [14][15][16][17]. All the synthetic analogues were able to interfere with the chloroplast electron transport chain and the most active compound showed an IC 50 (concentration causing 50% inhibition) value of 1.1 ± 0.2 M, only one order of magnitude higher than that of the commercial herbicide Diuron (0.27 M) [17].…”
Section: Introductionmentioning
confidence: 99%
“…Both halogenated and nonhalogenated forms have attracted researchers' interest because of their pharmaceutical importance as bioactive compounds and as biological probes for physiological studies [21]. Indole alkaloids from marine invertebrates have reported to be anti-inflammatory potentials; these include conicamin from tunicate [22], Lepadiformines A and B from ascidian [23] and aplysinopsin-type compound from sponge Hyrtios erecta [24], manzamine from sponge [25], carteramine A from sponge [26], and ascidiathiazones A and B [27, 28] from ascidan. The tricyclic alkaloids ascidiathiazone is isolated from Ascidian aplidium species that affected superoxide production by human neutrophils in vitro (IC 50 = 0.44–1.55  μ M), as well as ex vivo and studies suggested that these two compounds might become “potential anti-inflammatory pharmaceutical” leads.…”
Section: Anti-inflammatory Activitymentioning
confidence: 99%
“…A halogenated furanone rubrolide O isolated from a New Zealand ascidian Synoicum sp. , which inhibited superoxide anion production in human neutrophils (IC 50 = 35  μ M)   in vitro with low toxicity [28]. A novel dimeric oroidin (type of alkaloid) derivative carteramine A in the marine sponge Stylissa carteri , showed that inhibited neutrophil chemotaxis (IC 50 = 5  μ M).…”
Section: Anti-inflammatory Activitymentioning
confidence: 99%
“…A condição descrita pelos autores como ideal para a reação de Suzuki em C4 utiliza 20 Rubrolídeos são metabólitos secundários isolados das esponjas Ritterella rubra e Sinoicum blochmanni. 39,45 Estes produtos naturais, apesar de estruturalmente simples, apresentam diversos tipos de atividade biológica importantes, como inibição da proteína fosfatase, citotoxidade contra células humanas cancerosas, além de atuarem como antibióticos. Durante a síntese do rubrolídeo N (59a), Bellina e colaboradores expandiram, para os ácidos fenil-borônicos, a metodologia desenvolvida para a reação de Suzuki com os ácidos alquil-borônicos.…”
Section: Reações Da 34-dibromofuran-2(5h)-ona -Acoplamento Cruzado Munclassified