Results 91 to 100 of about 3,896 (275)

A REVIEW: THIAZINES DERIVATIVES TREATED AS POTENTIAL ANTIMICROBIAL AGENTS [PDF]

open access: yes, 2017
In recent days, heterocycles and their derivatives have become strong reflection in medicinal research and pharmaceutical fields because of their practical pharmacological and biological activities.
Makkar, Reena, Sharma, Praveen Kumar
core   +1 more source

Bazı α -lipoik asit türevi 1,3,4-tiyadiazol bileşiklerinin sentezi, karakterizasyonu ve antioksidan aktivitelerinin incelenmesi [PDF]

open access: yes, 2021
Bu tez çalışmasında, kimyanın pek çok alanında olduğu gibi, özellikle endüstride, tıp ve eczacılıkta geniş kulanım alanlarına sahip olan 1,3,4-tiyadiazol bileşiklerinden, α-lipoik asit türevi tiyadiazol bileşikleri sentezi, karakterizasyonu ve ...
Mohammed Alı Abraheem, Ashweeqı
core   +1 more source

Synthesis of Related Compounds of Thiosemi-carbazide. IV. 1-(1, 3, 4-Thiadiazol-2-yl)-2-pyrazolin-5-one and Tetrazolo [4, 5-a]-1, 3, 4-thiadiazole Derivatives.

open access: yesChemical and Pharmaceutical Bulletin, 1958
1) 1-(5-R-1, 3, 4-Thiadiazol-2-yl)-3-methyl-4-R'-2-pyrazolin-5-one (R'=H, iso-C3H7) (III) were synthesized starting with 2-hydrazino-5-R-1, 3, 4-thiadiazole (I : R=CH3, C2H5, n-C3H7, iso-C4H9, C6H5), and reacting them with ethyl acetoacetate or ethyl 3-acetyliso-valerate to form 5-R-1, 3, 4-thiadiazolylhydrazone (II).
openaire   +3 more sources

Modular Donor‐Acceptor Diradicaloids Based on an Electron Deficient N‐Heteroacene Acceptor

open access: yesSmall, Volume 22, Issue 20, 7 April 2026.
This work presents a modular approach to donor‐acceptor‐donor (D‐A‐D) diradicaloids that show systematic evolution of their energy gaps, singlet‐triplet splittings, and diradical character (y). The correlation of (opto)electronic, spin, and magnetic properties with high‐fidelity theoretical investigations provides clear connections between the degree ...
Tanner L. Smith   +9 more
wiley   +1 more source

Synthesis and Preliminary Antibacterial Study of New 2-Mercapto-1, 3- Benzothiazole DerivativesWith Expected Biological Activity [PDF]

open access: yes, 2013
Benzothiazoles are bicyclic ring system which have multiple applications. as antitumor , antiviral , antibacterial , anthelmintic and some of them showed glucose level.20 lowering effect. Accordingly, research is conducted to synthesize and evaluate some
Samer Abbas Ali
core   +2 more sources

Tetraaza[7]–[15]helicenes Synthesized by Two‐Step Strategy: Length‐Controlled Chiral π‐Systems Exhibiting Amplified Circularly Polarized Luminescence

open access: yesAngewandte Chemie, Volume 138, Issue 14, 27 March 2026.
A modular two‐step strategy provides tetraaza[n]helicenes (n = 7–15) as a homologous series with tunable photophysical and chiroptical properties. Extension beyond n = 11 induces pronounced through‐space π–π interactions, narrowing the energy gap and amplifying circularly polarized luminescence.
Takashi Otani   +6 more
wiley   +1 more source

Synthesis, characterization and cyclization reactions of some new bisthiosemicarbazones [PDF]

open access: yes, 2009
The reaction of trans-1, 4-dichloro-2-butene 1 with selected phenols affords (E)-1, 4-bis(aryloxy)-2-butenes 2a-d which are converted into bis-thiosemicarbazones 3a-h via the reactions with thiosemicarbazide and 4-methyl thiosemicarbazide, respectively ...
Değirmencioğlu, İsmail   +4 more
core  

Recent advances in the development of tissue transglutaminase (TG2) inhibitors [PDF]

open access: yes, 2013
Tissue transglutaminase (TG2) is a Ca2+-dependent enzyme and probably the most ubiquitously expressed member of the mammalian transglutaminase family. TG2 plays a number of important roles in a variety of biological processes.
Badarau, Eduard   +2 more
core   +1 more source

5-(Thiophen-2-yl)-1,3,4-thiadiazole derivatives: synthesis, molecular docking and in vitro cytotoxicity evaluation as potential anticancer agents

open access: yesDrug Design, Development and Therapy, 2018
Sobhi M Gomha,1 Mastoura M Edrees,2,3 Zeinab A Muhammad,2 Ahmed AM El-Reedy4 1Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt; 2Department of Organic Chemistry, National Organization for Drug Control and Research (NODCAR ...
Gomha SM   +3 more
doaj  

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