نتایج جستجو برای: thiazole derivatives

تعداد نتایج: 106335  

2014
Elham S. Darwish Azza M. Abdel Fattah Fawzy A. Attaby Oqba N. Al-Shayea

This study aimed for the synthesis of new heterocyclic compounds incorporating sulfamoyl moiety suitable for use as antimicrobial agents via a versatile, readily accessible N-[4-(aminosulfonyl)phenyl]-2-cyanoacetamide (3). The 2-pyridone derivatives were obtained via reaction of cyanoacetamide with acetylacetone or arylidenes malononitrile. Cycloaddition reaction of cyanoacetamide with salicyal...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2015
Stefanie H Habenicht Stefan Schramm Mingming Zhu Robert R A Freund Teresa Langenstück Rainer Strathausen Dieter Weiss Christoph Biskup Rainer Beckert

A series of four donor aryl alkynyl substituted thiazole derivatives 3a-d and three similar aryl donor-acceptor systems 6a-c have been synthesized. All compounds bear different electron-donating groups in the 5-position of the thiazole core. The influence of both electron donor strength and the additional phenylethynyl unit on photophysical properties, i.e. UV/Vis absorption, fluorescence emiss...

Journal: :Molecules 2014
Mehlika Dilek Altıntop Ahmet Özdemir Gülhan Turan-Zitouni Sinem Ilgın Özlem Atlı Fatih Demirci Zafer Asım Kaplancıklı

Fourteen new thiazolyl hydrazone derivatives were synthesized and evaluated for their anticandidal activity using a broth microdilution assay. Among the synthesized compounds, 2-[2-((5-(4-chloro-2-nitrophenyl)furan-2-yl)methylene)hydrazinyl]-4-(4-fluorophenyl)thiazole and 2-[2-((5-(4-chloro-2-nitrophenyl)furan-2-yl)methylene) hydrazinyl]-4-(4-methoxyphenyl)thiazole were found to be the most eff...

2017
Thimmalapura M Vishwanatha Katarzyna Kurpiewska Justyna Kalinowska-Tłuścik Alexander Dömling

An alternative approach toward the simple and robust synthesis of highly substituted peptidic thiazole derivatives using Ugi-multicomponent reaction (U-MCR) is described. Thus, we introduced the enantiopure (R)-2-methyl-2-isocyano-3-(tritylthio)propanoate as a novel class of isocyanide in MCR. This bifunctional isocyanide was found to undergo mild cyclodehydration to afford thiazole containing ...

Journal: :Molecules 2013
Yasmeen Gull Nasir Rasool Mnaza Noreen Faiz-Ul-Hassan Nasim Asma Yaqoob Shazia Kousar Umer Rasheed Iftikhar Hussain Bukhari Muhammad Zubair Md Saiful Islam

In general, benzothiazole derivatives have attracted great interest due to thier pharmaceutical and biological importance. New 2-amino-6-arylbenzothiazoles were synthesized in moderate to excellent yields via Suzuki cross coupling reactions using various aryl boronic acids and aryl boronic acid pinacol esters and the antiurease and nitric oxide (NO) scavenging activity of the products were also...

Journal: :Molecules 2017
Jorge Fernández-De la Hoz Carmen Méndez José A Salas Carlos Olano

Four novel paulomycin derivatives have been isolated from S. albus J1074 grown in MFE culture medium. These compounds are structural analogs of antibiotics 273a2α and 273a2β containing a thiazole moiety, probably originated through an intramolecular Michael addition. The novel, thiazole, moiety-containing paulomycins show a lower antibiotic activity than paulomycins A and B against Gram-positiv...

2016
Leila Hosseinzadeh Alireza Aliabadi Masoud Kalantari Abolfazl Mostafavi Marzieh Rahmani Khajouei

Quinazolinones are a group of fused heterocyclic compounds which have valuable biological properties including cytotoxic, antibacterial and antifungal activities. Thiazole group-containing compounds have been also reported to have a wide range of biological activities such as antitumor, anti-inflammatory, analgesic and antibacterial effects. Due to valuable cytotoxic effects of both thiazole gr...

Journal: :Indian Journal of Pharmaceutical Education and Research 2022

Abstract: Thiazole or 1,3-thiazole is a distinct heterocyclic compound which incorporates sulphur and nitrogen atoms. It vital framework present in numerous pharmacologically active compounds, be it of natural origin synthetic nature. Many thiazoles having antitumor antiviral activities, originate from microbes marine organisms. A variety drugs, thiazole group, like antimicrobial sulfathiazole,...

2012
Yahia Nasser Mabkhot Assem Barakat Abdullah Mohammad Al-Majid Abdullah Saleh Alamary Taleb T. Al-Nahary

This paper reports details about the synthesis of a series of novel functionalized symmetrical bis-heterocyclic compounds containing a thieno[2,3-b]thiophene motif. Bis-thiazole derivatives 2, 3a-c and thiazolo[3,2-a]pyridine derivatives 4a-c are achieved. The hitherto unknown dihydrothiophene derivatives 6a-dvia bis-pyridimium salt 5 are obtained. Additionally, the novel hydrazonothieno[2,3-b]...

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