Results 41 to 50 of about 24,519 (327)

Ring Expansion of Vinylaziridines through the Strain-Release Pericyclic Reaction: Recent Developments and Applications

open access: yesMolecules, 2013
Recent syntheses of azetidines, pyrrolidines, piperidines and azepines through cycloaddition or sigmatropic rearrangements of vinylaziridines are described. Applications to natural product synthesis and mechanistic investigations are also summarized.
Yu Mi Heo, Seung-Mann Paek
doaj   +1 more source

Synthesis, biological evaluation and docking analysis of substituted piperidines and (2-methoxyphenyl)piperazines [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
A series of sixteen novel substituted piperidines and (2-methoxyphenyl)piperazines were synthesized, starting from the key intermediates 1-(2-methoxyphenyl)-4-(piperidin-4-yl)piperazine and 1-(2-methoxyphenyl)-4-(piperidin-4-ylmethyl)piperazine.
Penjišević Jelena Z.   +6 more
doaj   +1 more source

Highly functionalized piperidines: Free radical scavenging, anticancer activity, DNA interaction and correlation with biological activity

open access: yesJournal of Advanced Research, 2018
Twenty-five piperidines were studied as potential radical scavengers and antitumor agents. Quantitative interaction of compounds with ctDNA using spectroscopic techniques was also evaluated.
Suvankar Das   +14 more
doaj   +1 more source

Synthesis of tetrafluorinated piperidines from nitrones via a visible-light-promoted annelation reaction

open access: yesBeilstein Journal of Organic Chemistry, 2020
A method for the one-step construction of 3,3,4,4-tetrafluorinated piperidines from nitrones and readily accessible tetrafluorinated iodobromobutane is described.
Vyacheslav I. Supranovich   +2 more
doaj   +1 more source

First asymmetric synthesis of piperidine alkaloid (-)-morusimic acid D [PDF]

open access: yes, 2008
The first asymmetric synthesis of (-)-morusimic acid D, a 2,3-trans-2,6-cis-2-methyl-6-substituted piperidin-3-ol containing alkaloid is reported. The key steps are the reductive alkylation of N,O-diprotected 3-hydroxyglutarimide, a stepwise reductive ...
Huang, Pei-Qiang   +4 more
core   +1 more source

Dialkyl Carbonates in the Green Synthesis of Heterocycles

open access: yesFrontiers in Chemistry, 2019
This review focuses on the use of dialkyl carbonates (DACs) as green reagents and solvents for the synthesis of several 5- and 6-membered heterocycles including: tetrahydrofuran and furan systems, pyrrolidines, indolines, isoindolines, 1,4-dioxanes ...
Pietro Tundo   +3 more
doaj   +1 more source

Next‐Generation Bio‐Reducible Lipids Enable Enhanced Vaccine Efficacy in Malaria and Primate Models

open access: yesAdvanced Functional Materials, EarlyView.
Structure–activity relationship (SAR) optimization of bio‐reducible ionizable lipids enables the development of highly effective lipid nanoparticle (LNP) mRNA vaccines. Lead LNPs show superior tolerability and antibody responses in rodents and primates, outperforming approved COVID‐19 vaccine lipids.
Ruben De Coen   +30 more
wiley   +1 more source

[Cp*Ru]-catalyzed selective coupling/hydrogenation

open access: yes, 2015
International ...
Achard, Mathieu   +7 more
core   +2 more sources

A Peptide Nucleic Acid‐Functionalized Heterojunction Thin Film Transistor as a Scalable and Reusable Platform for Label‐Free Detection of MicroRNA

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized, label‐free, and enzyme‐free biosensor (miR‐TFT) enables direct electrical detection of microRNA (miRNA) with single‐nucleotide specificity and a detection limit of 0.6 fM. Built on a tri‐channel In2O3/ZnO heterojunction and functionalized with bespoke peptide nucleic acid (PNA) probes, the device is robust, reusable, and compatible with
Wejdan S. Al Ghamdi   +5 more
wiley   +1 more source

Novel chemical entities inhibiting Mycobacterium tuberculosis growth identified by phenotypic high-throughput screening

open access: yesScientific Reports, 2022
We performed a high-throughput phenotypic whole cell screen of Mycobacterium tuberculosis against a diverse chemical library of approximately 100,000 compounds from the AbbVie corporate collection and identified 24 chemotypes with anti-tubercular ...
Anuradha Kumar   +17 more
doaj   +1 more source

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