depsidone

depsidone

[′dep·sə‚dōn]
(organic chemistry)
One of a class of compounds that consists of esters such as depsides, but are also cyclic ethers.
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R]) and UV spectra (190-400 nm) of the main peaks with those of reference substances previously isolated from lichens confirmed that the methanol extract of Cetraria islandica contains the depsidone fumarprotocetraric acid ([t.
The in vitro antimicrobial activities of pannarin, a depsidone isolated from lichens, collected in several Southern regions of Chile (including Antarctica), was evaluated alone and in combination with five therapeutically available antibiotics, using checkerboard microdilution assay against methicillin-resistant clinical isolates strains of Staphylococcus aureus.
The salazinic acid (8) a depsidone with lactol ring, was also weakly active against M.
Atrovirisidone B a new prenylated depsidone with cytotoxic property from the roots of Garcinia atroviridis.
lobaric acid (1), a [beta]-orcinol depsidone from Stereocaulon alpinum L.
Most known lichen substances are phenolic compounds, anthraquinones, dibenzofurans, depsides, depsidones, depsones, gamma lactones and pulvinic acid derivatives.
Chemotaxonomic studies have shown that the most unique lichen metabolites belong to the chemical classes of depsides, depsidones and dibenzofurans.
Botryorhodines A-D, antifungal and cytotoxic depsidones from Botryosphaeria rhodina, an endophyte of the medicinal plant Bidens pilosa.
Several lichen metabolites of various chemical classes, including the aliphatic acids, depsides and depsidones, dibenzofurans, diterpenes, anthraquinones, naphthoquinones, usnic acids, pulvinic acids, xanthones, and epidithiopiperazinediones have been reported with various biological activities such as cytotoxic, fungicidal, antimicrobial, antioxidant, and anti-inflammatory (Muller 2001).
Depsides and depsidones as inhibitors HIV-1 intagrase: discovery of novel inhibitors through 3D database searching.