Results 11 to 20 of about 14,599 (204)

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 [PDF]

open access: yesMolecules, 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   +3 more
doaj   +3 more sources

Chemoselective synthesis of 1,3,4-thiadiazoles from acyl hydrazines and nitroalkanes using elemental sulfur [PDF]

open access: yesNature Communications
Substituted 1,3,4-thiadiazoles find extensive use in pharmaceutical, agricultural, and materials chemistry. The incorporation of adaptable heterocyclic pharmacophores results in tunable hybrid molecules with diverse medicinal properties.
Xiaonan Wang   +6 more
doaj   +7 more sources

Design, synthesis and biological evaluation of benzoxazolinone-containing 1,3,4-thiadiazoles as TNF-α inhibitors [PDF]

open access: yesHeliyon, 2019
A library of nineteen benzoxazolinone-based 1,3,4-thiadiazoles has been synthesized and screened for their anti-inflammatory activity. The compound 1f exhibited a potent anti-inflammatory activity with an inhibition of 65.83% and 32.50% after 3 h and 5 h
Saqlain Haider   +4 more
doaj   +3 more sources

Synthesis and Diuretic Activity of Substituted 1,3,4-Thiadiazoles [PDF]

open access: yesScientifica, 2022
1,3,4-Thiadiazole nuclease, a 5-membered heterocyclic ring system containing two nitrogen and one sulfur atoms in addition to carbon atoms, is compound that showed promising results in the process of searching new diuretic agents. In this study, seven 5-
Asrat Ergena   +2 more
doaj   +4 more sources

Synthesis and Antibacterial Activities of Novel Imidazo[2,1-b]-1,3,4-thiadiazoles [PDF]

open access: yesMolecules, 2011
2-Amino-5-(2-aryl-2H-1,2,3-triazol-4-yl)-1,3,4-thiadiazoles 2-4 have been synthesized by the reaction of 2-aryl-2H-1,2,3-triazole-4-carboxylic acids 1 with thiosemicarbazide. Their reaction with phenacyl (p-substituted phenacyl) bromides led to formation
Kamal F. M. Atta   +3 more
doaj   +3 more sources

2-Amino-1,3,4-thiadiazoles as prospective agents in trypanosomiasis and other parasitoses [PDF]

open access: yesActa Pharmaceutica, 2020
Parasitic diseases are a serious public health problem affecting hundreds of millions of people worldwide. African trypanosomiasis, American trypanosomiasis, leishmaniasis, malaria and toxoplasmosis are the main parasitic infections caused by protozoan ...
Serban Georgeta
doaj   +2 more sources

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

open access: yesAktualʹnì 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   +2 more sources

Thiadiazoles. III*. Some 5-Substituted Derivatives of 2-Amino-1,3,4-Thiadiazoles and Some Mesoionic 1,3,4-Thiadiazoles [PDF]

open access: yesCroatica Chemica Acta, 1971
New derivatives of 1,3,4-thiadiazoles with potential phytohormonic (compds. I-V) and antibacterial (compds. VI-IX) activity have been prepared.
D. Kolbah   +3 more
core   +5 more sources

Iodine/TBAB-promoted oxidative cyclization: an efficient approach to thiadiazoles [PDF]

open access: yesRSC Advances
A rapid and efficient method for synthesizing 2-amino-1,3,4-thiadiazoles and 1,2,3-thiadiazoles via the oxidative cyclization of N-tosylhydrazones obtained from aromatic aldehydes and acetophenones has been developed.
Rakshanda Singhal   +3 more
doaj   +2 more sources

Functionalization of 2-Mercapto-5-methyl-1,3,4-thiadiazole: 2-(ω-Haloalkylthio) Thiadiazoles vs. Symmetrical Bis-Thiadiazoles

open access: yesMolecules
A study on the functionalisation of 2-mercapto-5-methyl-1,3,4-thiadiazole has been conducted, yielding two series of products: 2-(ω-haloalkylthio)thiadiazoles and symmetrical bis-thiadiazoles, with variable chain lengths. The experimental conditions were
Zhanina S. Petkova   +3 more
doaj   +2 more sources

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