Results 31 to 40 of about 3,529 (194)

Hypericum sp.: essential oil composition and biological activities [PDF]

, 2012
Phytochemical composition of Hypericum genus has been investigated for many years. In the recent past, studies on the essential oils (EO) of this genus have been progressing and many of them have reported interesting biological activities. Variations in
A Baruah, A Bertoli, A Bertoli, A Bertoli, A Cakir, A Cakir, A Cakir, A Ferraz, A Ferreira, A Guardo Di, A Kakhky, A Kirakosyan, A Kirakosyan, A Kornfeld, A Mourey, A Nahrstedt, A Pieroni, A Piovan, A Poutaraud, A Rančcić, A Sokmen, A Trovato, A Wójcik, A Đorđević, ABF Ferraz, AC Schmitt, ACP Dias, ACP Dias, ACP Dias, Ana P. Guedes, AP Guedes, AP Guedes, APM Bernardi, B Demirci, B Gudžic, B Gudžić, B Lange, B Prado, B Vinterhalter, B Öztürk, BA Silva, C Giuliani, C Mathis, C Mathis, C Mathis, CC Sánchez-Mateo, CC Sánchez-Mateo, D Fritz, D Ivanova, D Mockutė, D Schwarz, E Banchio, E Bombardelli, E Galati, E Tozlu, E Yildirim, EV Costa, F Bakkali, F Bougard, F Chen, F Conforti, F Demirci, F Maggi, F Souret, FR Pretto, FX Maquart, G Ferretti, G Franklin, G Franklin, G Franklin, G Kızıl, G Pintore, G-Q Zheng, G. Franklin, GM Kitanov, H Jayasuriyab, H Karim, HP Bais, I Abreu, I Kubo, I Schwob, I Schwob, I Schwob, J Camejo-Rodrigues, J Heilmann, J Koperdáková, J Radusiene, J Soelberg, JL Hartwell, K Adam, K Danova, K Helmja, K Hosni, K Ishiguro, K Morteza-Semnani, K Nakano, K Saeb, K Tawaha, KHC Baser, L Decosterd, L Maffi, L Panizi, L Pistelli, L Rocha, M Cardona, M Cardoso, M Couladis, M Couladis, M Cowan, M Moura, M Pavlović, M Spiteller, Manuel Fernandes-Ferreira, N Aligiannis, N Radulovic, N Robson, O Touafek, P Avato, P Avato, P Mercke, P Mukherjee, P Mártonfi, P Veronese, P Weyerstahl, PAG Santos, PK Mukherjee, PML Lourenço, PV Petrakis, R Alwis De, R Andrews, R Daudt, R Rabanal, R Thimmaraju, RM Rabanal, RS Chauhan, S Apaydin, S Burt, S Crockett, S Gadzovska, S Griffin, S Jaric, S Kültür, S Mahmoud, S Martin, S Uribe, SJ Murch, SL Crockett, SL Crockett, SMA Zobayed, SMA Zobayed, SR Rao, SR Rao, T Nogueira, V Saroglou, W Feng, X-H Cui, X-H Cui, Y Tambe, Z Toker   +158 more
core   +1 more source

Specific stereochemistry of OP-1074 disrupts estrogen receptor alpha helix 12 and confers pure antiestrogenic activity

Nature Communications, 2018
Estrogen receptor alpha (ERα) plays critical roles in the etiology and treatment of breast cancer. Here the authors synthesize benzopyrans with variable side chains to identify antiestrogenic compounds and characterize OP-1074, a compound that exhibits ...
S. W. Fanning, L. Hodges-Gallagher, D. C. Myles, R. Sun, C. E. Fowler, I. N. Plant, B. D. Green, C. L. Harmon, G. L. Greene, P. J. Kushner   +9 more
doaj   +1 more source

Amberlyst 15 Catalyzed Prenylation of Phenols: One-Step Synthesis of Benzopyrans

Molecules, 1997
A convenient one-step synthesis of 2,2-dimethylchromans and chromenes using Amberlyst 15 as a catalyst is described.
A. Banerji, A. Jain, G. P. Kalena
doaj   +1 more source

Synthesis and Evaluation of Thiochroman-4-One Derivatives as Potential Leishmanicidal Agents

Molecules, 2017
The S-containing heterocyclic compounds benzothiopyrans or thiochromones stand out as having promising biological activities due to their structural relationship with chromones (benzopyrans), which are widely known as privileged scaffolds in medicinal ...
Esteban Vargas, Fernando Echeverri, Iván D. Vélez, Sara M. Robledo, Wiston Quiñones   +4 more
doaj   +1 more source

Synthesis and photochromic behaviour of new methyl induced linear and angular thieno-2H-chromenes [PDF]

, 2003
New methyl induced linear and angular thieno-2H-chromenes 4, 5 and 6 were prepared by reaction of new methylated 6-hydroxybenzo[b]thiophenes 2 (a, b and c) and propargylic alcohols 3a and 3b, using acidic Alumina Brockmann I as catalyst and drying agent.
Aubard, Jean, Dubest, Roger, Guglielmetti, Robert J., Plasencia, Paula M. S., Queiroz, Maria João R. P.   +4 more
core   +1 more source

Iodine-Substituted Dithiocarbamic Flavanones—A Structure–Activity Relationship Study of Their Antioxidant Properties

Molecules
The antioxidant properties of novel diiodo-substituted 3-dithiocarbamic flavanones were investigated. The three frameworks that proved to be the most active ones in our previous studies were selected.
Mihail Lucian Birsa, Laura Gabriela Sarbu   +1 more
doaj   +1 more source

Litter Quality of Populus Species as Affected by Free-Air CO2 [PDF]

, 2009
The effect of elevated CO2 and nitrogen fertilization on the molecular chemistry of litter of three Populus species and associated soil organic matter (SOM) was investigated by pyrolysis-gas chromatography/mass spectrometry.
Buurman, P., Hoosbeek, M.R., Vermue, E.
core   +4 more sources

Antifeedant Activity of Benzopyrans from Melicope latifolia [PDF]

, 2020
Two benzopyrans, evodionol (1), and evodion (2) were isolated from the stem bark of Melicope latifolia. The structure of both compounds was identified based on 1D and 2D NMR, UV, and IR spectroscopy.
Tanjung, Mulyadi
core   +2 more sources

Highly enantioselective access to cannabinoid-type tricyles by organocatalytic Diels–Alder reactions

Beilstein Journal of Organic Chemistry, 2012
After prosperous domino reactions towards benzopyrans, the products were used as the starting material in Lewis acid catalyzed and organocatalytic Diels–Alder reactions to build up a tricyclic system.
Stefan Bräse, Nicole Volz, Franziska Gläser, Martin Nieger   +3 more
doaj   +1 more source

Metabolic signatures of triatomine vectors of Trypanosoma cruzi unveiled by metabolomics. [PDF]

PLoS ONE, 2013
Chagas disease is a trypanosomiasis whose causative agent is the protozoan parasite Trypanosoma cruzi, which is transmitted to humans by hematophagous insects known as triatomines and affects a large proportion of South America.
Luis Caetano M Antunes, Jun Han, Jingxi Pan, Carlos J C Moreira, Patrícia Azambuja, Christoph H Borchers, Nicolas Carels   +6 more
doaj   +1 more source