Results 11 to 20 of about 16,147 (226)

5-(Benzoyloxymethyl)isoxazole-3-carboxylic Acid Ethyl Ester

Molbank
We describe here the palladium hydrogenation of ethyl 5-(benzoyloxymethyl)isoxazole-3-carboxylate. The presence of two reducible sites in the molecule, namely the benzylic-like position and the isoxazole N–O bond, creates a possible competition.
Cosimo Antonini, Franca M. Cordero, Fabrizio Machetti   +2 more
doaj   +2 more sources

Design, synthesis, and biological evaluation of novel aryl isoxazoles as potential Hsp90 inhibitors [PDF]

Research in Pharmaceutical Sciences
Background and purpose: Heat shock protein 90 (Hsp90) is a molecular chaperone critical for the stabilization of numerous oncoproteins, making it a promising target for anticancer drug development.
Mina Ardestani, Fariba Keshavarzipour, Maryam Abbasi, Afshin Zarghi, Mahmoud Aghaei, Mehran Ghiaci, Hojjat Sadeghi-Aliabadi   +6 more
doaj   +2 more sources

Synthesis, Structure, and Antitumor Activity of Heterocyclic 2-[4-(Dimethylamino)benzyl]-3-oxoisoindoline-4-carboxylates [PDF]

Molecules
In this study, the synthesis of a series of alkaloid analogs—isoxazole and isothiazole esters of 2-substituted 3-oxoindoline-4-carboxylic acid was performed. The target derivatives were obtained by the carbodiimide method.
Gulim K. Mukusheva, Roza I. Jalmakhanbetova, Zharkyn Zh. Zhumagaliyeva, Gulzhaukhar A. Toktarbay, Irina A. Kolesnik, Ekaterina A. Akishina, Evgenij A. Dikusar, Vladimir I. Potkin, Aliaksandr L. Pushkarchuk, Tatiana I. Terpinskaya, Fedor I. Zubkov, Mikhail S. Grigoriev, Hongwei Zhou   +12 more
doaj   +2 more sources

The Green and Effective Synthesis of Isoxazole-Based Molecules Under Ultrasonic Irradiation Approaches [PDF]

Pharmaceuticals
Isoxazole-based molecules constitute a crucial category of heterocyclic compounds with wide-ranging applications across pharmaceutical development, advanced materials, and pesticide synthesis.
Mei-Tong Chen, Yao-Rong Li, Zhao-Qi Wang, Shan Jiang, Zan-Hui Jia, Da-Wei Zhang   +5 more
doaj   +2 more sources

5,8-Dimethoxy-3,9-dimethyl-3a,4,9,9a-tetrahydro-4,9-epoxynaphtho[2,3-d]isoxazole

Acta Crystallographica Section E, 2014
The title compound, C15H17NO4, is the exo isomer with a syn arrangement of the O atom in the isoxazole ring to the methyl group of the bicyclic alkene. The dihedral angle between the isoxazole ring and the benzene ring is 7.42 (9)°.
Alan J. Lough, Jaipal R. Nagireddy, William Tam   +2 more
doaj   +2 more sources

1-Methyl-3-p-tolyl-3,3a,4,9b-tetrahydro-1H-chromeno[4,3-c]isoxazole-3a-carbonitrile

Acta Crystallographica Section E, 2011
In the title compound, C19H18N2O2, the dihedral angle between the mean planes of the fused chromeno and isoxazole units is 43.71 (7)°. The isoxazole and pyran rings exhibit envelope and half chair conformations, respectively.
Rajeswari Gangadharan, K. Sethusankar, Gandhi Murugan, Manickam Bakthadoss   +3 more
doaj   +2 more sources

Phenylisoxazole-3/5-Carbaldehyde Isonicotinylhydrazone Derivatives: Synthesis, Characterization, and Antitubercular Activity

Journal of Chemistry, 2021
Eight new phenylisoxazole isoniazid derivatives, 3-(2′-fluorophenyl)isoxazole-5-carbaldehyde isonicotinylhydrazone (1), 3-(2′-methoxyphenyl)isoxazole-5-carbaldehyde isonicotinylhydrazone (2), 3-(2′-chlorophenyl)isoxazole-5-carbaldehyde ...
Fernando Carrasco, Wilfredo Hernández, Oscar Chupayo, Patricia Sheen, Mirko Zimic, Jorge Coronel, Celedonio M. Álvarez, Sergio Ferrero, Sandra Oramas-Royo, Evgenia Spodine, Jesus M. Rodilla, Juan Z. Dávalos   +11 more
doaj   +1 more source

Synthesis of Spiro Pyrazolone-Oxindole and Bicyclic Pyrazolone Derivatives via Solvent-Dependent Regioselective Aza-1,4/1,6-Michael and Intramolecular Cycloaddition under Catalyst-Free Conditions

SynOpen, 2021
A solvent-dependent, highly regioselective [3+2]-cyclo­addition reaction of isoxazole-styrenes and azomethine imines under catalyst-free conditions is reported, furnishing a library of pyrazolone–spirooxindole hybrids.
Kota Sathish, Sakkani Nagaraju, Dhurke Kashinath   +2 more
doaj   +1 more source

Simple Access to Isoxazole-Containing Heterocyclic Hybrids: Isoxazole/Oxazole and Isoxazole/Pyridine

Russian Journal of General Chemistry, 2023
Abstract The synthesis of substituted isoxazole–oxazole hybrids by the noncatalytic reaction of methyl 2-diazo-2-(alkyl/aryl/hetarylisoxazol-5-yl)acetates with alkyl and aryl cyanides has been reported. According to DFT calculations, the reaction proceeds through the intermediate formation
A. E. Taishev, E. E. Galenko, M. S. Novikov, A. F. Khlebnikov   +3 more
openaire   +1 more source

Lewis acid-promoted direct synthesis of isoxazole derivatives

Beilstein Journal of Organic Chemistry, 2023
Isoxazole derivatives were synthesized via a one-pot method utilizing 2-methylquinoline derivatives as template substrates, sodium nitrite as a nitrogen-oxygen source, and solely using aluminum trichloride as the additive.
Dengxu Qiu, Chenhui Jiang, Pan Gao, Yu Yuan   +3 more
doaj   +1 more source