Results 21 to 30 of about 12,432 (295)

The tert-Amino Effect in Heterocyclic Chemistry. Synthesis of Spiro Heterocycles

Molecules, 2005
The tert-amino reaction effect was examined. A new method to synthesize spiro heterocycles is presented. It was shown that the “tert-amino effect” could be applied to the formation of spiro-fused heterocycles.
Y. Morzherin, O. Eltsov, L. Dyudya, T. Glukhareva, E. D’yachenko   +4 more
doaj   +1 more source

A multiswitchable poly(terthiophene) bearing a spiropyran functionality: understanding photo and electrochemical control [PDF]

, 2011
An electroactive nitrospiropyran-substituted polyterthiophene, 2-(3,3′′-dimethylindoline-6′-nitrobenzospiropyranyl)ethyl 4,4′′-didecyloxy-2,2′:5′,2′′-terthiophene-3′-acetate, has been synthesized for the first time.
Breukers, Robert, Byrne, Robert, Dennany, Lynn, Diamond, Dermot, Gambhir, Sanjeev, Higgins, Michael, Officer, David, Wagner, Klaudia, Wagner, Pawel, Wallace, Gordon, Zanoni, Michele   +10 more
core   +1 more source

Ligand-biased ensemble receptor docking (LigBEnD): a hybrid ligand/receptor structure-based approach. [PDF]

, 2017
Ligand docking to flexible protein molecules can be efficiently carried out through ensemble docking to multiple protein conformations, either from experimental X-ray structures or from in silico simulations.
Abagyan, Ruben, Lam, Polo C-H, Totrov, Maxim   +2 more
core   +2 more sources

Crystal structure of ethyl (2S,2′ R)-1′-benzyl-3-oxo-3H-dispiro[1-benzothio-phene-2,3′-pyrrolidine-2′,11″-indeno-[1,2-b]quinoxaline]-4′-carboxylate [PDF]

, 2015
The authors thank the TBI X-ray facility, CAS in Crystallography and BioPhysics, University of Madras, Chennai, India, for the data collection.Peer reviewedPublisher ...
Govindaraj, J., Raghunathan, R., Raja, R, SubbiahPandi, A., Suresh, M   +4 more
core   +2 more sources

Synthesis and evaluation of the antioxidant activity of new spiro-1,2,4-triazine derivatives applying Ag/Fe3O4/CdO@MWCNT MNCs as efficient organometallic nanocatalysts

Frontiers in Chemistry, 2022
We applied the Petasites hybridus rhizome water extract as green media so that Ag/Fe3O4/CdO@ multi-walled carbon nanotubes magnetic nanocomposites (Ag/Fe3O4/CdO@MWCNTs MNCs) could be prepared.
Elham Ezzatzadeh, Somayeh Soleimani-Amiri, Zinatossadat Hossaini, Khatereh Khandan Barani   +3 more
doaj   +1 more source

Tetrahydropyrazolo[1,5-a]Pyrimidine-3-Carboxamide and N-Benzyl-6′,7′-Dihydrospiro[Piperidine-4,4′-Thieno[3,2-c]Pyran] analogues with bactericidal efficacy against Mycobacterium tuberculosis targeting MmpL3 [PDF]

, 2013
Mycobacterium tuberculosis is a major human pathogen and the causative agent for the pulmonary disease, tuberculosis (TB). Current treatment programs to combat TB are under threat due to the emergence of multi-drug and extensively-drug resistant TB.
A Hill, A Koul, AE Grzegorzewicz, Alfonso Mendoza-Losana, Anil Kumar Tyagi, C Dye, C Varela, Carlos Alemparte, Carolina González, Chrystala Constantinidou, CK Stover, David Barros, David J. Dow, DJ Payne, Douglas J. Minick, Elena Jiménez, Esther Pérez-Herrán, Fátima Ortega-Muro, Gurdyal S. Besra, Iñigo Angulo-Barturen, JA Maddry, Joaquín Rullás, Johnson Afari, Jorge Esquivias, K Andries, K Pethe, K Tahlan, LL Ballell, Lluís Ballell, M Berry, M Biava, M Murray, M Protopopova, Mark J. Pallen, María José Rebollo-López, María Martínez-Hoyos, María Teresa Fraile-Gabaldón, Modesto J. Remuiñán, Mónica Cacho, Nalini Mehta, Nicholas Cammack, Nicholas J. Loman, R Singh, SA Stanley, ST Cole, V La Rosa, V Makarov, Verónica Sousa, Vickey L. Spivey   +48 more
core   +3 more sources

Novel synthesis and characterisation of 3,3-dimethyl-50-(2-benzothiazolyl)- spironaphth(indoline-2,30-[3H]naphth[2,1-b] [1,4]oxazine) derivatives [PDF]

, 2009
Novel modified spirooxazines (SOs) with additional chelating groups were synthesised and the crystal structure of one of these was determined. UV–vis spectroscopic characterization of the photoisomerization of the SO derivatives shows that the ...
Alhashimy, Atabekyan, Baillet, Benkovic, Bertelson, Boeyens, Byrne, Byrne, Cao, Chamonttin, Chu, Clegg, Collins, Crano, Deligeorgiev, Dermot Diamond, Desvergne, Favaro, Feringa, Gőrner, Hirschberg, Irie, Jeliazkova, Kawata, Ko, Le Baccon, Lehn, Lokshin, Löhr, Maeda, Miler-Srenger, Millini, Minkin, Minkovska, Nameer Alhashimy, Nishikiori, Phillips, Pimienta, Pina, Preigh, Radu, Robert Byrne, Rosario, Scarmagnani, Schaffner, Stela Minkovska, Tamai, Tamaki, Taylor, Tian, Uznanski, Wojtyk, Zhou   +52 more
core   +1 more source

Simple approach to thieno[3,2-d]pyrimidines as new scaffolds of antimicrobial activities

Acta Pharmaceutica, 2016
6ʹ-(4-Chlorophenyl)-spiro[cyclohexane-1,2ʹ-thieno[3,2-d][1,3] oxazin]-4ʹ(1ʹH)-one (1) was synthesized and used as a starting material for the synthesis of a novel series of spiro compounds having biologically active sulfonamide 2a-e and 3ʹ-(4 ...
Hafez Hend N., El-Gazzar Abdel-Rhman B. A., Zaki Magdi E. A.   +2 more
doaj   +1 more source

Desing, synthesis and anti-inflammatory activity of dirivatives 10-R-3-aryl-6,7-dihydro-2H-[1,2,4]triazino[2,3-c]quinazolin-2-ones of spiro-fused cyclic frameworks

Acta Chimica Slovenica, 2017
Present work is devoted to the purposeful search of novel promising anti-inflammatory agents among the insufficiently known 3'-R-10'-R1-spiro[hetaryl-3(4),6'-[1,2,4]triazino[2,3-c]quinazolin]-2'(7'H)-ones.
Oleksandra Kolomoets, Oleksii Voskoboynik, Oleksii Antypenko, Galyna Berest, Inna Nosulenko, Vitaliy Palchikov, Olexandr Karpenko, Sergiy Kovalenko   +7 more
doaj   +1 more source

Organic nanoparticulate photochromes [PDF]

, 2013
Photochromic organic dyes can be widely used in materials for optically rewritable data storage, photonic switches, memories, sensors, or actuators. In recent years photochromic materials based on nanoparticles became particularly focused, since they can
Feczkó, Tivadar, Voncina, Bojana
core   +1 more source