Results 21 to 30 of about 6,703 (220)

A convenient synthesis of 1,3,4-thiadiazole and 1,3,4-oxadiazole based peptidomimetics employing diacylhydrazines derived from amino acids [PDF]

, 2010
Synthesis of novel orthogonally protected 1,3,4-thiadiazole and 1,3,4-oxadiazole tethered dipeptide mimetics is described. Both the heterocycles are prepared via a set of diacylhydrazines derived from amino acids.
Lamani, R.S., Nagendra, G., Narendra, N., Sureshbabu, V.V.   +3 more
core   +1 more source

Acute toxicity of 3-(2-, 3-fluorophenyl)-6-(aryl-, hetaryl)-[1,2,4]triazole[3,4-b][1,3,4]thiadiazoles

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2017
Nowadays an attempt to create a number of new biologically active compounds by many scientific groups is being one of the topical issues in the domestic pharmaceutical industry.
O. A. Bihdan, V. V. Parchenko
doaj   +1 more source

Biological activities of imidazo[2,1-b][1,3,4]thiadiazole derivatives: A review

Journal of Saudi Chemical Society, 2016
Imidazo[2,1-b][1,3,4]thiadiazole heterocycle was discovered during the 1950s. Since then, many newer derivatives are being developed and evaluated for their biological profiles. The derivatives of imidazo[2,1-b][1,3,4]thiadiazoles are widely explored for
Bhoomendra A. Bhongade, Sirajunisa Talath, Ravikiran A. Gadad, Andanappa K. Gadad   +3 more
doaj   +1 more source

Red Phosphorescence from Benzo[2,1,3]thiadiazoles at Room Temperature [PDF]

, 2016
We describe the red phosphorescence exhibited by a class of structurally simple benzo[2,1,3]thiadiazoles at room temperature. The photophysical properties of these molecules in deoxygenated cyclohexane, including their absorption spectra, steady-state ...
Graham T. Sazama, Gregory D. Gutierrez, Marc A. Baldo, Müllen K., Timothy M. Swager, Tony Wu, Turro N. J., Yersin H.   +7 more
core   +2 more sources

Chitosan-MgO Nanocomposite: One Pot Preparation and Its Utility as an Ecofriendly Biocatalyst in the Synthesis of Thiazoles and [1,3,4]thiadiazoles

Nanomaterials, 2018
A chitosan-MgO hybrid nanocomposite was prepared using a simple chemical precipitation method and characterized using Fourier transform spectroscopy (FTIR), elemental analysis (EDX), and scanning electron microscopy (SEM). The nanocomposite was served as
Sayed M. Riyadh, Khaled D. Khalil, Ateyatallah Aljuhani   +2 more
doaj   +1 more source

Synthesis of Novel Triazoles, Tetrazine, Thiadiazoles and Their Biological Activities

Molecules, 2015
An expedient synthesis of novel triazoles, tetrazine and thiadiazoles, using conveniently accessible and commercially available starting materials has been achieved.
Mohammed A. Al-Omair, Abdelwahed R. Sayed, Magdy M. Youssef   +2 more
doaj   +1 more source

Antitubercular drugs for an old target: GSK693 as a promising InhA direct inhibitor [PDF]

, 2016
Despite being one of the first antitubercular agents identified, isoniazid (INH) is still the most prescribed drug for prophylaxis and tuberculosis (TB) treatment and, together with rifampicin, the pillars of current chemotherapy.
Martínez-Hoyos, María, Perez-Herran, Esther, Gulten, Gulcin, Encinas, Lourdes, Álvarez-Gómez, Daniel, Alvarez, Emilio, Ferrer-Bazaga, Santiago, García-Pérez, Adolfo, Ortega, Fátima, Angulo-Barturen, Iñigo, Rullas-Trincado, Joaquin, Blanco Ruano, Delia, Torres, Pedro, Castañeda, Pablo, Huss, Sophie, Fernández Menéndez, Raquel, González del Valle, Silvia, Ballell, Lluis, Barros, David, Modha, Sundip, Dhar, Neeraj, Signorino-Gelo, François, McKinney, John D., García-Bustos, Jose Francisco, Lavandera, Jose Luis, Sacchettini, James C., Jimenez, M. Soledad, Martín-Casabona, Nuria, Castro-Pichel, Julia, Mendoza-Losana, Alfonso   +29 more
core   +3 more sources

Antioxidant and prooxidant activity of new 1,2-diols and thiadiazoles derivatives in Saccharomyces cerevisiae yeast cells

Cumhuriyet Science Journal, 2020
The present research was undertaken to determine the effect of substituted 2,2'-[(2R,3R)-2,3-dihydroxy-1,4-dioxobutane-1,4-diyl]bis(N-R-hydrazine-1-carbothioamide and (1R,2R)-1,2-bis[5-(R-amino)-1,3,4-thiadiazole-2-yl]ethane-1,2-diols on the antioxidant ...
Ahmet Çetin, Arzu Karatepe
doaj   +1 more source

Comparative Study of the Synthetic Approaches and Biological Activities of the Bioisosteres of 1,3,4-Oxadiazoles and 1,3,4-Thiadiazoles over the Past Decade

Molecules, 2022
The bioisosteres of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles are well-known pharmacophores for many medicinally important drugs. Throughout the past 10 years, 1,3,4-oxa-/thiadiazole nuclei have been very attractive to researchers for drug design ...
Rana M. El-Masry, Hanan H. Kadry, Azza T. Taher, Sahar M. Abou-Seri   +3 more
doaj   +1 more source

Palladium-catalyzed difluoromethylation of heteroaryl chlorides, bromides and iodides. [PDF]

, 2017
A palladium-catalyzed difluoromethylation of a series of heteroaryl chlorides, bromides and iodides under mild conditions is described. A wide range of heteroaryl halides such as pyridyl, pyrimidyl, pyrazyl, funanyl, thienyl, pyazolyl, imidazolyl ...
Gu, Yang, Gu, Yucheng, Lu, Changhui, Shen, Qilong, Wu, Jiang   +4 more
core   +1 more source