Results 1 to 10 of about 2,614 (189)

Antiproliferative Activity of (−)‐Isopulegol‐based 1,3‐Oxazine, 1,3‐Thiazine and 2,4‐Diaminopyrimidine Derivatives [PDF]

open access: yesChemistryOpen, 2022
A series of novel heterocyclic structures, namely 1,3‐oxazines, 1,3‐thiazines and 2,4‐diaminopyrimidines, were designed and synthesised. The bioassay tests demonstrated that, among these analogues, 2,4‐diaminopyridine derivatives showed significant ...
Fatima Z. Bamou   +6 more
doaj   +2 more sources

Dithieno[1,4]thiazines and Bis[1]benzothieno[1,4]thiazines—Organometallic Synthesis and Functionalization of Electron Density Enriched Congeners of Phenothiazine [PDF]

open access: yesMolecules, 2020
This mini-review summarizes the syntheses and functionalizations of dithieno[1,4]thiazines and bis[1]benzothieno[1,4]thiazines, both electron density-enriched congeners of phenothiazines with remarkable electronic properties.
Lars May, Thomas J. J. Müller
doaj   +2 more sources

Green Synthesis of 2-Mercapto 5,6-Dihydro-4H-1,3-Thiazines via Sequential C–S Couplings [PDF]

open access: yesMolecules
The six-membered N,S-heterocyclic 1,3-thiazines and their derivatives are widely acknowledged as pharmaceutical molecules with a wide range of biological activities.
Wenjie Liu   +4 more
doaj   +2 more sources

Gold-Catalyzed 1,3-Thiazine Formation and Uncommon Tautomer Isolation. [PDF]

open access: yesJ Org Chem, 2022
This work represents the first example of a gold-catalyzed formation of 1, 3-thiazine/1, 3-thiazinane by means of a catalytic approach and further uncommon isolation of the two tautomers.
Canudo-Barreras G   +3 more
europepmc   +3 more sources

Synthesis of 1,3-Thiazine and 1,4-Thiazepine Derivatives via Cycloadditions and Ring Expansion. [PDF]

open access: yesInt J Mol Sci
Non-cephem drugs with 1,3-thiazine-derived rings are very rare, although a number of bioactive 1,3-thiazine derivatives are known. Similarly, 1,4-thiazepine-derived drugs are rare, but many 1,4-thiazepine derivatives show interesting biological ...
Palkó M   +4 more
europepmc   +3 more sources

S,N-Heteropentacenes – Syntheses of Electron-Rich Anellated Pentacycles

open access: yesOrganic Materials, 2021
This review summarizes syntheses of S,N-heteropentacenes, i.e. electron-rich sulfur and nitrogen-embedding pentacycles, and briefly highlights selected applications in molecular electronics. Depending on the anellation mode and the number of incorporated
Henning R. V. Berens   +1 more
doaj   +1 more source

Synthetic Approach to Diversified Imidazo[2,1-b][1,3]thiazines and Its Evaluation as Non-Steroidal Anti-Inflammatory Agents

open access: yesChemistry Proceedings, 2021
The present work is devoted to the synthesis of imidazo[2,1-b][1,3]thiazine derivatives as possible anti-inflammatory agents. The synthetic approach to (2-pyridinyloxy) substituted imidazo[2,1-b][1,3]thiazines based on the interaction of the ...
Nataliia Slyvka   +3 more
doaj   +1 more source

Synthesis and Chemical Characterization of Some NovelAzachalcones compounds and Evaluation of their Biological Activity [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
: A series of novel Azachalcone compounds were prepared by the reaction of 3-acetyl pyridine with different aromatic aldehyd . Azachalcone was reacted with thiourea to give good yields of thiazines , all the new compounds were characterized by I.R , U.V ...
Mohammed Abed Kadhim
doaj   +1 more source

Design, Synthesis and Anticancer Activity of New Polycyclic: Imidazole, Thiazine, Oxathiine, Pyrrolo-Quinoxaline and Thienotriazolopyrimidine Derivatives

open access: yesMolecules, 2021
In this article, we showed the synthesis of new polycyclic aromatic compounds, such as thienotriazolopyrimidinones, N-(thienotriazolopyrimidine) acetamide, 2-mercapto-thienotriazolo-pyrimidinones, 2-(((thieno-triazolopyrimidine) methyl) thio) thieno ...
Ameen Ali Abu-Hashem   +2 more
doaj   +1 more source

1,3-Thiazine, 1,2,3,4-Dithiadiazole, and Thiohydrazide Derivatives Affect Lipid Bilayer Properties and Ion-Permeable Pores Induced by Antifungals

open access: yesFrontiers in Cell and Developmental Biology, 2020
Over the past decade, thiazines, thiadiazoles, and thiohydrazides have attracted increasing attention due to their sedative, antimicrobial, antiviral, antifungal, and antitumor activities.
Anastasiia A. Zakharova   +5 more
doaj   +1 more source

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