Results 51 to 60 of about 1,407 (189)

Recent advances in the synthesis of triazole derivatives [PDF]

open access: yes, 2015
Triazole ring system has attracted a continuously growing interest of synthetic organic chemists and those dealing with the medicinal compounds due to its versatile potential to interact with biological systems.
Ahmad, Matloob   +6 more
core  

The Synthesis and Biological Evaluation of Novel Nitrogen Containing 6 and 7 Membered Ring Heterocyclic Compounds [PDF]

open access: yes, 2014
Literature reports have previously shown interesting antimicrobial activities of compounds containing the α,β unsaturated carbonyl function and various piperidone and tropanone derivatives have attracted interest.
Hussain, Idhnan Abas
core   +1 more source

α-Chloroketones enabled Rh(III)-catalyzed enantioselective C–H [4+2] annulation of sulfoximines under mild and redox-neutral conditions

open access: yesGreen Synthesis and Catalysis
Taking advantage of facilely available α-chloroketones as C(sp3)-based electrophilic partners and oxidized alkyne equivalents, we here present a novel CpxRh(III)-catalyzed enantioselective C–H [4 ​+ ​2] annulation of sulfoximines under mild and redox ...
Qingwei Song   +6 more
doaj   +1 more source

New Insight into the SAR of Pyrimido [4,5-b][1,4] Benzothiazines as 15-lipoxygenase Inhibitors [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2013
Objective(s): Recently we reported that the soybean 15-lipoxygenase (SLO) inhibitory activity of pyrimido[4,5-b][l,4]benzothiazines largely depends on the orientation of sulfur atom of thiazine core towards FeIII-OH in the active site pocket of the ...
Nona Pooryaghoobi   +4 more
doaj  

Modellierung von Neuromelanin des Mittelhirns und Hirnstamms zur Charakterisierung der Metallbindung und des damit verbundenen MRT‐Kontrasts bei der Parkinson‐ und Alzheimer‐Krankheit

open access: yesAngewandte Chemie, Volume 137, Issue 41, October 6, 2025.
Synthetische Neuromelanin‐Analoga werden verwendet, um die Bindung von Eisen und Kupfer an die Melaninkomponente oder an konjugiertes Protein (β‐Lactoglobulin) zu charakterisieren. Die Modelle bestätigen das Vorhandensein paramagnetischer mononuklearer Bindungsstellen und von Clustern aus aggregiertem Eisen oder gemischten Metalltypen, die jeweils die ...
Niklas Wallstein   +11 more
wiley   +1 more source

Ferrocenil-származékok, heterovegyületek, poli-, illetve makrociklusos és glükozid-származékaik szintézise, szerkezete, sztereokémiai, molekuladinamikai és szisztematikus spektroszkópiai vizsgálata = Synthesis, structure, molecular dynamic, stereochemical and systematic spectroscopic study of ferrocenyl derivatives, heterocycles and their poly- and macrocyclic derivatives and glycosides. [PDF]

open access: yes, 2011
Több száz új, várhatóan biológiailag aktív ferrocén (Fc) származékot és heterociklusos vegyületet állítottunk elő. Szerkezetüket komplex nagyműszeres vizsgálatokkal (IR, 1H-, 13C-, 15N NMR, DNOE NMR, MS, X-ray) derítettük fel, a reakciómechanizmust ...
Csámpai, Antal   +2 more
core  

Modeling Midbrain and Brainstem Neuromelanins to Characterize Metal Binding and Associated MRI Contrast in Parkinson's and Alzheimer's Diseases

open access: yesAngewandte Chemie International Edition, Volume 64, Issue 41, October 6, 2025.
Synthetic neuromelanin analogs are used to characterize iron and copper binding to the melanin moiety or to conjugated protein (β‐lactoglobulin). The models confirm the presence of paramagnetic mononuclear‐binding sites and iron or mixed‐metal clusters that enhance water proton relaxation to varying degrees.
Niklas Wallstein   +11 more
wiley   +1 more source

Synthesis of fused heterocyclic systems based on quinozalines and tetrahydroquinolines [PDF]

open access: yes, 2013
Данная работа направлена на разработку эффективного метода микроволнового синтеза конденсированных гетероциклических систем на основе хиназолинов и тетрагидрохинолинов с использованием реакций, протекающих по механизму трет-амино эффекта.The project aims
Platonova, A. Yu.   +1 more
core  

Organic Electrochemical Transistors Monolithically Integrated with Precise Micro‐Dispensing Enable High‐Performance Biosignals Amplification

open access: yesAdvanced Science, Volume 12, Issue 40, October 27, 2025.
This research showcases a micro‐dispensing strategy for integrating high‐performance organic electrochemical transistors (OECTs) and amplifiers onto flexible substrates. The method achieves precise material deposition, enabling fully micro‐dispensed OECT amplifiers with a record 1 MHz gain‐bandwidth product.
Roberto Granelli   +4 more
wiley   +1 more source

Shedding light on melanins within in situ human eye melanocytes using 2-photon microscopy profiling techniques. [PDF]

open access: yes, 2019
Choroidal melanocytes (HCMs) are melanin-producing cells in the vascular uvea of the human eye (iris, ciliary body and choroid). These cranial neural crest-derived cells migrate to populate a mesodermal microenvironment, and display cellular functions ...
Cherepanoff, Svetlana   +6 more
core  

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