Results 51 to 60 of about 6,154 (202)

The features of nucleophilic substitution of the nitro group in 4-alkyl-6-nitro-1,2,4-triazolo[5,1-c][1,2,4]triazines

Chimica Techno Acta, 2017
The nucleophilic substitution of the nitro group of 4-alkyl-6-nitro-4,7-dihydro-1,2,4-triazolo[5,1-c][1,2,4]triazine-7-ones on the example of interactionwith morpholine was studied.
E. N. Ulomsky, D. N. Lyapustin, V. V. Fedotov, O. S. El'tsov, I. M. Sapozhnikova, D. N. Kozhevnikov, E. M. Mukhin   +6 more
doaj   +1 more source

Site-selectivite Synthesis and Tautomerism of Arylazo Derivatives of Pyrazolo[3,4-d]pyrimido-[1,6-b][1,2,4]triazine [PDF]

, 2008
A simple synthetic strategy is described for synthesis of the hitherto unreported 5-arylazo-1,3-diphenyl-6-substituted-1H-pyrazolo[3,4-d]pyrimido[1,6-b][1,2,4]triazines 5a-n.
Darwish, Manal A. A., Farghaly, Thoraya A., Sami Shawali, Ahmad, Sherif, Sherif M.   +3 more
core  

EO9 (Apaziquone): from the clinic to the laboratory and back again [PDF]

, 2013
EO9 (Apaziquone) is a bioreductive drug that has a chequered history. It underwent clinical trial but failed to show activity in phase II clinical trials when administered i.v.
Aamdal, Adams, Bailey, Bailey, Basu, Bibby, Bibby, Burd, Butler, Cadenas, Ceelen, Choudry, Collard, Connors, Cowan, Cummings, Denny, Dirix, Ernster, Fitzsimmons, Gofrit, Hall, Hargreaves, Hay, Hay, Hay, Hendricksen, Hendricksen, Hendriks, Jain, Loadman, Lu, Maliepaard, Masters, Masters, McKeown, McLeod, Milbank, Minchinton, Oostveen, Pavlidis, Phillips, Phillips, Phillips, Phillips, Phillips, Phillips, Pizao, Plumb, Plumb, Plumb, Puri, Rademakers, Robertson, Robertson, Roed, Schellens, Segura-Aguilar, Siegel, Siegel, Smitskamp-Wilms, Stratford, Sylvester, Tercel, van der Heijden, van der Schoot, van der Schoot, van der Schoot, Vaupel, Vaupel, Walton, Walton, Workman, Workman, Workman, Zappa   +75 more
core   +1 more source

Copper‐ and Silver‐Catalyzed Reactions of Active Methylene Isocyanides: Facile Access to Highly Substituted Five‐ and Six‐Membered Heterocycles

Chemistry – A European Journal, Volume 32, Issue 13, 1 April 2026.
This review summarizes recent advances in copper‐ and silver‐catalyzed reactions of active methylene isocyanides for the synthesis of highly substituted five‐ and six‐membered heterocycles. Emphasis is placed on [3+n] cycloadditions, annulations, and asymmetric strategies, highlighting current limitations and future opportunities in heterocycle ...
Jimil George, Kyungsoo Oh
wiley   +1 more source

Organic and Metallacages for Chemical Sensing: Progress in Water‐Compatible Systems

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
Supramolecular cages function as three‐dimensional receptors for selective molecular recognition and sensing, and this review outlines design principles for water‐stable architectures, key analyte‐ and medium‐dependent challenges, recent water‐compatible examples (including polymer‐integrated systems), and future opportunities for cage‐based ...
Rabia Zahid, Martina Viola, Maria Vittoria Balli, Guillermo Moreno‐Alcántar, Pierre Picchetti   +4 more
wiley   +1 more source

The redox transformations and nucleophilic replacements as possible metabolic reactions of the drug “Triazaverin”. The chemical modeling of the metabolic processes

Chimica Techno Acta, 2015
As a model of metabolic transformations of antiviral drug “Triazaverin” and its analogues‑2-alkylthio‑6-nitro‑1,2,4-triazolo[5,1-c][1,2,4]triazine‑7-ones 1a-d examined the oxidation of alkylthio groups to the corresponding sulfoxides 2a-d and sulfones 3a-
N. R. Medvedeva, I. S. Sapozhnikova, V. L. Rusinov, E. N. Ulomsky   +3 more
doaj   +1 more source

Monoubiquitin-dependent endocytosis of the Iron-Regulated Transporter 1 (IRT1) transporter controls iron uptake in plants [PDF]

, 2011
Plants take up iron from the soil using the IRON-REGULATED TRANSPORTER 1 (IRT1) high-affinity iron transporter at the root surface. Sophisticated regulatory mechanisms allow plants to tightly control the levels of IRT1, ensuring optimal absorption of ...
Barberon, Marie, Zelazny, Eenric, Robert, Stephanie, Conejero, Geneviève, Curie, Cathy, Friml, Jiri, Vert, Grégory   +6 more
core   +3 more sources

Synthesis, Properties, Applications and Challenges of Multicomponent Doped Organic Room Temperature Phosphorescence Materials

Aggregate, Volume 7, Issue 3, March 2026.
The multi‐component doping strategy, involving self‐assembly, host‐guest systems, and crystal engineering, has gained attention for its simplicity, cost‐effectiveness, structural diversity, and adjustable room‐temperature phosphorescence (RTP). This review summarizes and evaluates the progress in creating RTP materials using this strategy, highlighting
Zhenjie Zhou, Huizhong Wang, Junxiong Yao, Tian Wang, Jianhua Liu, Xiaohua Cao, Qiang Feng, Bingbing Yue, Dianyuan Wang, Jianguo Wang, Huanan Huang   +10 more
wiley   +1 more source

Highly efficient separation of actinides from lanthanides by a phenanthroline-derived bis-triazine ligand [PDF]

, 2011
The synthesis, lanthanide complexation, and solvent ex- traction of actinide(III) and lanthanide(III) radiotracers from nitric acid solutions by a phenanthroline-derived quadridentate bis-triazine ligand are described. The ligand separates Am(III) and Cm(
Accorsi G., Ackerman J. J. H., Alexander V., Andreas Wilden, Anet F. A. L., Banik N. L., Baumgärtner F., Baumgärtner F., Benay G., Benay G., Bencini A., Berthet J.- C., Berthet J.-C., Berthet J.-C., Berthet J.-C., Berthet J.-C., Boucher C., Bremner D. H., Bremner D. H., Brinck T., Chandler C. J., Choppin G. R., Choppin G. R., Clore G. M., Cockrell G. M., Coffman D. D., Colette S., Colette S., Colette S., Cordier P. Y., Cumper C. W. N., Dam H. H., Denecke M. A., Desreux J. F., Desreux J. F., Donnay G., Drew M. G. B., Drew M. G. B., Drew M. G. B., Drew M. G. B., Ekberg C., Ekberg C., Fermvik A., Foreman M. R. S., Frank W. Lewis, Gaunt A. J., Geist A., Geoffrey Vidick, Giuseppe Modolo, Grycova L., Hagström I., Hubscher-Bruder V., Hudson M. J., Ibarzo J., Inagaki F., Ionova G., Iveson P. B., Jean F. Desreux, Jean-Pierre Simonin, Jones P., Keizers P. H. J., Kikuchi K., Kolarik Z., Laurence M. Harwood, Lecomte du Noüy P., Lewis F. W., Madic C., Magill J., Magnusson D., Magnusson D., Mathur J. N., McKibben J. M., Michael G. B. Drew, Michael J. Hudson, Michal Sypula, Nilsson M., Nilsson M., Nilsson M., Nouri Bouslimani, Ranganathan R. S., Sammes P. G., Serrano-Purroy D., Simonin J.-P., Simonin J.-P., Simonin J.-P., Sood D. D., Spirlet M. R., Steppert M., Trong-Hung Vu, Trumm S., Yildirim Erbil H., Zong R.   +91 more
core   +1 more source

Erucastrum virgatum subsp. virgatum (Brassicaceae) Endemic to Sicily (Italy): Biological Properties and Phenolic Content of Leaf Extracts

Chemistry &Biodiversity, Volume 23, Issue 3, March 2026.
ABSTRACT The present work reports a comparative study between extracts obtained by different methods (ultrasonic bath‐assisted extraction, maceration, decoction, and Soxhlet extraction) from the leaves of Erucastrum virgatum subsp. virgatum collected in Sicily (Italy), using ethanol and water as “green” solvents.
Benedetta Galletta, Fabio Mondello, Federica Davì, Roberto Laganà Vinci, Francesco Cacciola, Luigi Mondello, Antonia Nostro, Natalizia Miceli, Maria Fernanda Taviano   +8 more
wiley   +1 more source