Results 31 to 40 of about 16,147 (226)

Synthesis and evaluation of anti-leishmania activity of analogs isoxazoles derivatives of grandisin and veraguensin neolignans

Orbital: The Electronic Journal of Chemistry, 2012
Using the concept of bioisosterismo, the new analogs isoxazole were designed from the molecular modification of grandisin and veraguensin neolignans, which have a grouping that is a furan ring bioisóstero isoxazole.
Ozildéia Soares, Maria Letícia . F. Silva, João Vitor D. Martins, Gabriela R. Hurtado, Luiz H. Viana, Adriano C. M. Baroni   +5 more
doaj   +1 more source

1-Methyl-3-(2-methylphenyl)-3,3a,4,9b-tetrahydro-1H-chromeno[4,3-c][1,2]oxazole-3a-carbonitrile

Acta Crystallographica Section E, 2011
In the title compound, C19H18N2O2, the five-membered isoxazole ring adopts an envelope conformation and the deviation of the N atom from the mean plane of the isoxazole ring is −0.3256 (11) Å.
K. Swaminathan, K. Sethusankar, G. Murugan, M. Bakthadoss   +3 more
doaj   +1 more source

New Approaches for the Synthesis of Heterocyclic Compounds Derived from Cyclohexan-1,3-dione with Anti-proliferative Activities

Acta Chimica Slovenica, 2021
In the present work a series of heterocyclization reactions were adopted using cyclohexan-1,3-dione through its reaction with either furan-2-carbaldehyde or thiophene-2-carbaldehyde to give the corresponding ylidene derivatives 3a,b. The latter compounds
Rafat Milad Mohareb, Yara Raafat Milad, Ayat Ali Masoud   +2 more
doaj   +1 more source

Vacuum ultraviolet photoionization and ionic fragmentation of the isoxazole molecules [PDF]

, 2020
The photofragmentation of the isoxazole molecules producing ionized atomic and molecular fragments was investigated in the photon energy range of 9–32 eV, using synchrotron radiation excitation combined with ion time-of-flight spectrometry.
Richter, Robert, Wasowicz, Tomasz J.,, Kivimäki, A. (Antti), Catone, D. (Daniele), Richter, R. (Robert), Catone, Daniele, Kivimäki, Antti, Wasowicz, Tomasz J., Richter, Robert,, Wasowicz, T. J. (Tomasz J.), Lund University., Kivimäki, Antti,, Catone, Daniele,   +12 more
core   +1 more source

Ethyl 5-methyl-3-phenylisoxazole-4-carboxylate

Acta Crystallographica Section E, 2013
In the title compound, C13H13NO3, the dihedral angle between the phenyl and isoxazole rings is 43.40 (13)°. The ethoxycarbonyl group is rotated out of the plane of the isoxazole ring by 16.2 (13)°.
Chandra, K. Raghu, S. Jeyaseelan, K. B. Umesha, M. Mahendra   +4 more
doaj   +1 more source

4-(4-Fluorophenyl)-2-methyl-3-(1-oxy-4-pyridyl)isoxazol-5(2H)-one

Acta Crystallographica Section E, 2008
The crystal structure of the title compound, C15H11FN2O3, was determined as part of a study on the biological activity of isoxazolone derivatives as p38 mitogen-activated protein kinase (MAPK) inhibitors.
Stefan Laufer, Dieter Schollmeyer, Simona Margutti   +2 more
doaj   +1 more source

Defect Passivation via Isoxazole Doping in Perovskite Solar Cells

, 2022
To improve perovskite solar cell (PSC) performance, which is deeply related to perovskite layer quality, researchers have explored numerous strategies. Additive doping into perovskite precursors has been widely used to improve the PSC performance.
Eun-Cheol Lee (6425900), Jinho Yoon (4951777), Xuewen Liu (4376128)   +2 more
core   +1 more source

Catalytic Enantioselective Intramolecular Aza‐Michael Addition to α,β‐Unsaturated Esters

Angewandte Chemie, EarlyView.
A general method for accessing enantioenriched saturated N‐heterocycles via a catalytic enantioselective intramolecular aza‐Michael reaction to α,β‐unsaturated esters is described. A superbasic bifunctional iminophosphorane (BIMP) catalyst was key to enabling reactivity of the high pKa sulfonamide pronucleophile, whilst delivering good to excellent ...
Evan G. W. Rutter, Cameron J. MacRae, Haoran Xiong, Daniel Rozsar, Katherine F. P. Clarke, Darren J. Dixon   +5 more
wiley   +2 more sources

2,10-Bis(3-bromophenyl)-3,7,11,15-tetraoxa-8,16-diazatricyclo[12.2.1.16,9]octadeca-1(16),6(18),8,14(17)-tetraene

Acta Crystallographica Section E, 2010
The title compound, C24H20Br2N2O4, is an 18-membered tricycle including two isoxazole rings. The asymmetric unit contains one half of the formula unit; a centre of inversion is located at the centroid of the compound.
Kwang Ha, Sae Byul Park, Young Ju Lee, Hyung Jin Kim   +3 more
doaj   +1 more source

ISOXAZOLE–A POTENT PHARMACOPHORE

, 2017
Isoxazole is an azole with an oxygen atom next to the nitrogen. Isoxazole rings are found in some natural products, such as ibotenic acid and also found in a number of drugs, including COX-2 inhibitor valdecoxib.
Chikkula, Krishna Veni, S., Raja
core   +2 more sources