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Related to Lactones: sesquiterpene lactones, Cyclic ester


A cyclic ester, or a compound containing a cyclic ester, formed by the intramolecular condensation of a hydroxy carboxylic acid.

lac·ton′ic (-tŏn′ĭk) adj.


(Elements & Compounds) any of a class of organic compounds formed from hydroxy acids and containing the group -C(CO)OC-, where the carbon atoms are part of a ring
lactonic adj


(ˈlæk toʊn)

any of a group of internal esters derived from hydroxy acids.
[1840–50; lact(ic acid) + -one]
lac•ton′ic (-ˈtɒn ɪk) adj.
References in periodicals archive ?
The team hypothesises that similarly structured beta lactones could "mask" themselves as mycolic acid to enter the mycolic acid metabolic pathways and then block the decisive enzymes.
The non-compliance rates for resorcylic acid lactones (hormonally active compounds produced by fungi or man-made) and contaminants such as metals and mycotoxins (toxins produced by fungi) were higher than for other groups of substances, but slightly down on the previous report.
family Asteraceae) has stood out in previous studies for its allelopathic potential, due to the sesquiterpene lactones (glaucolide B) (Padolina et al.
One of the most well studied QS signal molecules (autoinducer) are A-acylhomoserine lactones (AHL) (2).
Summary: Sesquiterpene lactones (SLs) with various activities, which are primarily composed of enhydrin, are the primary constituents in the leaves of the yacon, Smallanthus sonchifolius (Peoepp.
Methods: ALCL, leukaemia and breast cancer cells, and normal peripheral blood mononuclear cells (PBMCs) were treated with isolated sesquiterpene lactones and analysed for cell cycle progression, proliferation, mitochondrial activity, apoptosis, protein and mRNA expression, NF-[kappa]B and cytochrome P450 activity, 12(S)-HETE production and lymphendothelial intravasation.
Important wood chemicals, which could be supposed to be impact molecules, include naturally present cis and trans methyl-octalactone (whisky lactones, with a coconut flavor in pure state), trans-2-nonenal (sawdust smell), toasting releasing volatile phenols: guaiacol, 4-methyl-guaiacol and eugenol (spicy and smoky smells) and vanillin (vanilla smell).
Self Perception in Bacteria: Quorum Sensing with Acylhomoserine Lactones.
immitis resistance to macrocyclic lactones, such as ivermectin, for heartworm chemoprophylaxis.
Boll PM, Sorenson E, Balieu E: Naturally occurring lactones and lactames.
hysterophorus responsible for ABCD are sesquiterpene lactones (SLs) consisting of a lactone ring attached to a sesquiterpene.
In the majority of gram negative bacteria quorum sensing is mainly mediated by signaling cascades, involving N-acyl-homoserine lactones (AHLs) (Von Bodman et al.