“…A novel classical kinetic resolution of 2-aryl-substituted or 2,3-disubstituted cyclobutanones of Baeyer–Villiger oxidation catalyzed by a Cu(ii)/SPDO complex is reported for the first time, producing normal lactones in excellent enantioselectivities (up to 96% ee) and regioselectivities (up to >20/1), along with unreacted ketones in excellent enantioselectivities (up to 99% ee). …”
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“…Brusatol, a triterpene lactone compound mainly from Brucea javanica, sensitizes a broad spectrum of cancer cells. …”
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“…Dank der Initiative des Kantons Zürich, mit interkantonaler Unterstützung sämtlicher Deutschschweizer Kantone sowie dem SECO wurde die Herausgabe des Lohnbuches ermöglicht. …”
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“…The four marker compounds isolated from A. costus include dehydrocostus lactone, costunolide, syringin and 5-hydroxymethyl-2-furaldehyde. …”
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“…The strategy has putatively identified 52 compounds from Wushicha Granule, mainly including flavonoids, saponins, alkaloid, lignins, and lactones. Especially, saponin “glycyrrhetinic acid” in the Granule was specifically identified as 18β-configuration (rather than 18α-configuration). …”
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“…Since the first description of the coelacanth Ticinepomis peyeri from the Besano Formation of the UNESCO World Heritage Site of Monte San Giorgio (Canton Ticino, Switzerland), the diversity of coelacanths in the Middle Triassic of this area of the western Paleo-Tethys has been enriched with discoveries of other fossil materials. …”
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“…Here, we used AidC, a quorum-quenching (QQ) enzyme from Chryseobacterium sp. strain StRB126 that can effectively hydrolyze N-(3-oxododecanoyl) homoserine lactone (3OC12-HSL) and N-butanoyl-homoserine lactone (C4-HSL), the major signal molecules synthesized by P. aeruginosa. …”
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“…The composite coating consisted of: Bioglass (BG), hydroxyapatite (HA), and lawsone, that were loaded into a polymeric matrix of Xanthan Dialdehyde/Chondroitin Sulfate (XDA/CS). …”
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“…For the other sorbents, the amount of carboxyl and lactone groups determined the amount of Cr(III) and Ni(II) adsorption. …”
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“…To elucidate the issue, we examined data from a case–control study conducted between 1992 and 1997 in the Swiss canton of Vaud. Cases were 223 patients (142 men, 81 women) with incident, histologically confirmed colon (n = 119) or rectal (n = 104) cancer (median age 63 years), linked with the Cancer Registry of the Swiss Canton of Vaud, and controls were 491 subjects (211 men, 280 women, median age 58 years) admitted to the same university hospital for a wide spectrum of acute non-neoplastic conditions unrelated to long-term modifications of diet. …”
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“…The plasma AUC ratio of lactone versus total topotecan (lactone + carboxy-forms) increased with the dose from 16% to 55%, (R = 0.84, P < 0.01). …”
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“…BACKGROUND: Cell-to-cell communication (also referred to as quorum sensing) based on N-acyl-homoserine lactones (AHLs) is a widespread response to environmental change in Gram-negative bacteria. …”
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“…BACKGROUND: Sodalis glossinidius, a maternally transmitted bacterial endosymbiont of tsetse flies (Glossina spp.), uses an acylated homoserine lactone (AHL)-based quorum sensing system to modulate gene expression in accordance with bacterial cell density. …”
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“…L-Galactose feeding, but neither D-galacturonate nor L-gulono-1,4-lactone, enhanced the content of AsA in immature green fruit. …”
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“…Using biosensors for quorum sensing based on Chromobacterium violaceum and Vibrio anguillarum, we showed that when the purified biosurfactant was mixed with N-acyl homoserine lactones produced by A. salmonicida, quorum sensing was inhibited, although bacterial growth was not affected. …”
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“…CONCLUSION: This first detailed study of rhlG transcription reveals a complex regulation involving three sigma factors and N-butyryl-l-homoserine lactone. We furthermore present evidences that RhlG does not play a key role in rhamnolipid synthesis.…”
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“…Cyathostomin resistance to macrocyclic lactone compounds is emerging, principally measured as a reduction in strongyle egg reappearance time observed after treatment. …”
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“…MATERIALS AND METHODS: Two orthogonal array designs L9 (3)(4) were employed to optimize the SFE-CO(2) conditions for enhancing yield of 6-gingerol from ginger and the ethanol reflux extraction conditions for enhancing yield of costunolide and dehydrocostus lactone from radix aucklandiae; a uniform design U(5)(5(3)) was applied for evaluation of anti-motion sickness activity of the compound recipes. …”
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“…The health professionals comprised public health and food safety experts, cantonal physicians and cantonal veterinarians, while the student group comprised first-year veterinary and agronomy students. …”
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“…Twenty-four (22.8%) isolates were identified as methicillin-resistant S. aureus and lukFS genes encoding Panton–Valentine leucocidin were identified in 67 (63.8%) of the isolates. …”
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