Results 11 to 20 of about 12,533,127 (227)

Quinazolino-thiadiazoles as antimicrobial agents

open access: yesBulletin of Faculty of Pharmacy Cairo University, 2018
In the present research, we report the synthesis and in vitro antimicrobial activity of a new series of novel quinazolino-thiadiazoles as fused pharmacophore (3–20).
Harun Patel   +7 more
doaj   +2 more sources

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

open access: yesRSC Adv
Using iodine, TBAB, and DMSO as an effective catalytic system, this study presents a rapid synthesis of 2-amino-1,3,4-thiadiazoles and 1,2,3-thiadiazoles, achieving high yields within 5–15 minutes.
Singhal R, Mehra MK, Malik B, Pilania M.
europepmc   +2 more sources

Heterocyclizations based on N-(R-hydrazine-1-carbonothioyl)cycloalkancarboxamides: functionalized azoles and their antimicrobial activity

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2022
Synthesis and structural modification of azoles remains an important area of medical chemistry and allows to obtain new compounds with a wide range of biological activity.
О. V. Kholodniak   +2 more
doaj   +1 more source

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

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   +1 more source

Synthesis of some substituted 1,3,4-oxadiazoles, thiadiazoles and 1,2,4-triazoles [PDF]

open access: yesمجلة التربية والعلم, 2009
In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. Ethyl methacrylate was treated with hydrazine hydrate in ethanol to give the corresponding hydrazide (1).
Shereen R. Mohamed
doaj   +1 more source

Development of Rh(I)-catalyzed denitrogenative transformations of 1,2,3-thiadiazoles

open access: yes, 2023
Presented herein are a series of studies designed to increase the fundamental understanding, and expand the application in heterocyclic synthesis, of the Rh(I)-catalyzed denitrogenative transformations of 1,2,3-thiadiazoles − a new class of reactions ...
Marina A. Tokareva (17255824)
core   +1 more source

Synthesis and Evaluation of the Anti-Microbial Activity of New Heterocycles Containing the 1,3,4-Thiadiazole Moiety

open access: yesMolecules, 2011
A new series of thiadiazole-enaminones 4 were synthesized via reactions of 5-acetyl-1,3,4-thiadiazoles 3 with dimethylformamide-dimethylacetal (DMF-DMA).
Thoraya A. Farghaly   +2 more
doaj   +1 more source

Synthesis and Study of Some 4-Chlorophenoxy Methyl Substituted amido1,3,4-Oxadiazoles, 1,3,4-Thiadiazoles and 1,2,4-Triazoles from 4-Chloro phenoxy acetic acid [PDF]

open access: yesمجلة التربية والعلم, 2013
: In this paper the synthesis of some substituted 1,3,4-oxadiazole, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. 4-Chlorophenol was treated with chloroacetic acid to give 4-chlorophenoxy acetic acid (C1) which was reacted with thionyl chloride ...
Mudhar A. Othman, Khalid M. Daoud
doaj   +1 more source

Physical-chemical properties of 5-(3-fluorophenyl)-4-amino-1,2,4-triazole-3-thiol s-derivatives

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2017
Introduction. Currently an attempt to combine 1,2,4-triazole heterocycle with various pharmacologically active fragments of other organic molecules is popular among the scientists.
O. A. Bihdan, V. V. Parchenko
doaj   +1 more source

Novel thiadiazole-thiazole hybrids: synthesis, molecular docking, and cytotoxicity evaluation against liver cancer cell lines

open access: yesJournal of Taibah University for Science, 2022
One of the worst diseases, cancer claims millions of lives each year throughout the world, necessitating the creation of novel treatments. In this study, we designed a novel series of 1,3,4-thiadiazoles through the reaction of 2-(4-methyl-2-(2-(1 ...
Ghadah F. Aljohani   +6 more
doaj   +1 more source

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