Results 81 to 90 of about 5,326,384 (292)

L-Aspartic acid pyridinium salts: In silico, synthesis and adjuvant vs antibiotic antibacterial evaluation

Results in Chemistry
In the present study, a new series of chiral L-aspartic acid pyridinium salts have been designed, guided by molecular docking as antiemetics via TrySR or DNA GryB inhibitors, as well as an adjuvant to chloramphenicol via CAT-III inhibitor to continue ...
Jessica R. Gutiérrez Cano, I. Paulina Morales-Sandoval, Dino Gnecco, Alan Carrasco-Carballo, Joel L. Terán   +4 more
doaj   +1 more source

Quaternary Pyridinium Compounds

, 1990
Quaternary pyridinium compounds, their use in inhibiting acetylcholinesterase, their roles in the prophylaxis and treatment of organophosphate poisoning, their roles in anticholinesterase therapy and their roles as agents mimicking or opposing the ...

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Synthesis, characterisation and magnetic behaviour of ionic metalloporphyrins: metal-tetrakis(N-octyl-4-pyridinium)-porphyrins with tetrabromoferrate(III) anions [PDF]

, 2013
A series of magnetic, ionic-substituted tetrapyridyl metalloporphyrins, [tetrakis(N-octyl-4-pyridinium)-metal-porphyrin][tetrabromoferrate(III)] 4 (metal=iron, cobalt, manganese, copper or zinc), have been synthesised.
Zhou, Qing, Zhou, Q, Lu, Xingmei, Shao, HW, Sun, ZC, Lu, XM, Zhou, Na, Zhou, N, Shao, Huawu, Sun, Zhicheng   +9 more
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Synthesis of non-phosphorus ether glycerolipids containing a pyridinium ring.

Тонкие химические технологии, 2008
The synthesis of new non-phosphorus ether glycerolipids containing a pyridinium ring in a polar domain is described. Novel compounds possess high cytotoxic activity against human leukemia К562 and colon cancer HCT116 cell lines.
S. G. Romanov, V. G. Romanov, N. V. Pliavnik, G. A. Serebrennikova, A. A. Shtil   +4 more
doaj  

Anodic Behaviour of Some Bispyridinium Oximes on a Glassy-Carbon Electrode

International Journal of Electrochemical Science, 2013
The electrochemical oxidation of selected bispyridinium oximes, including conventional oximes HI-6 [(1-(((4-carbamoylpyridinium-1-yl)methoxy)methyl)-2-((hydroxyimino)-methyl)pyridinium chloride] and TMB-4 [N,N'-(propano)bis(4-hydroxyiminomethyl ...
Ivana Novak, Šebojka Komorsky-Lovrić, Suzana Žunec, Ana Lucić Vrdoljak   +3 more
doaj   +1 more source

Pyridinium-based fluorosulfonamide reagents enabled photoredox catalyzed radical fluorosulfonamidation [PDF]

Sulfamoyl fluorides, as a crucial building block of SuFEx, have garnered extensive research interest due to their applications in chemical biology, materials science, and drug discovery. Recently, considerable research has been dedicated to the synthesis
Chao, Sun, Weigang, Zhang, Jing, Liu, Xian, Zhang, Heyin, Li, Zhenlei, Zou, Zhen, Wang, Yi, Pan, Mengjun, Huang, Yifan, Li, Yi, Wang   +10 more
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Preferred gauche conformation in N-(2-aminoethyl)pyridinium ions [PDF]

, 1984
X-ray analysis of 1-[(2S, 3S)-2-N,N-dibenzylamino-3-methyl-1-pentyl]pyridinium p-toluenesulphonate and 1-[(2S)-2-N,N-dibenzylamino-1-propyl]pyridinium p-toluenesulphonate reveals that in both compounds the central N---C---C---N moiety is in the syn ...
Jan A. Kanters, Frans B. Van Duijneveldt, Kanters, J.A., Roeland J.M. Nolte, Razenberg, J.A.S.J., Johannes A.S.J. Razenberg, Nolte, R.J.M., Drenth, W., Wiendelt Drenth, Duijneveldt, F.B. van   +9 more
core   +2 more sources

Click‐to‐Release Reactivity of Quaternary Anilinium Tetrazines Enables Cascade Assembly of Multifunctional Biomolecular Scaffolds

Angewandte Chemie International Edition, EarlyView.
Click chemistry has evolved from making covalent connections to also breaking bonds. Here, a cascade assembly is reported that combines these maneuvers to build multifunctional biomolecular scaffolds in a modular one‐pot reaction. The unifying azide release‐tetrazine hub clicks with a trans‐cyclooctene tag, rapidly liberates N,N‐dimethylaniline to ...
Markus Staudt, Christian B. M. Poulie, Andreas Löffler, Peter R. Meinig, Riley J. Deutsch‐Williams, Barbara Herrmann, Ralph Weissleder, Hannes Mikula, Jonathan C. T. Carlson, Matthias M. Herth   +9 more
wiley   +1 more source

A Simple and Efficient Approach to the Synthesis of Endo and Exo Bicyclo[6.1.0]nona-3,5-diene-9-carboxaldehyde

Molecules, 2007
Monobromination of 1,5-cyclooctadiene, followed by cyclopropanation with ethyl diazoacetate, led to the formation of endo and exo ethyl 4,5-dibromobicyclo[6.1.0]nonane-9-carboxylates 3a and 3b. Bis-dehydrobromination of 3a and 3b using 1,8-diazabicyclo[5,
Gholamreza Mashayekhi, Mehdi Ghandi
doaj   +1 more source

Effect of some pyridinium based compounds on the hydrolysis of carboxylate ester

, 2012
611-616Nucleophilic reactivity of some pyridinium based compounds towards hydrolysis of p-nitrophenyl acetate (PNPA) has been studied at pH 9.0 and temperature 27ºC.
Singh, Namrata, Ghosh, Kallol K
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