Results 1 to 10 of about 7,940 (145)

Antimicrobial Activity of 1,3,4-Oxadiazole Derivatives. [PDF]

open access: yesInt J Mol Sci, 2021
The worldwide development of antimicrobial resistance forces scientists to search for new compounds to which microbes would be sensitive. Many new structures contain the 1,3,4-oxadiazole ring, which have shown various antimicrobial activity, e.g., antibacterial, antitubercular, antifungal, antiprotozoal and antiviral. In many publications, the activity
Glomb T, Świątek P.
europepmc   +4 more sources

Investigation on Quantitative Structure-Activity Relationships of 1,3,4 Oxadiazole Derivatives as Potential Telomerase Inhibitors [PDF]

open access: yes, 2018
The published manuscript is available at EurekaSelect via http://www.eurekaselect.com/164022/article, DOI : 10.2174/1570163815666180724113208. © 2018 Bentham ScienceA series of 1,3,4-oxadiazole derivatives with significant broad-spectrum anticancer ...
Almerico, Anna Maria   +2 more
core   +2 more sources

A study of cell membranes in nasal epithelial cells from patients with chronic rhinosinusitis with nasal polyps by means of a fluorescent probe [PDF]

open access: yes, 2009
Aim. To assess the state of membranes in nasal epithelial cells obtained from the patients with chronic rhinosinusitis with nasal polyps (CRSwNP) with the help of the fluorescent probe 2-(2ʹ-ОН-phenyl)-5-phenyl-1,3-oxazole. Methods. The state of membrane
Onishchenko, A. I.   +6 more
core   +2 more sources

A facile synthesis of N-Z/Boc-protected 1,3,4-oxadiazole-based peptidomimetics employing peptidyl thiosemicarbazides [PDF]

open access: yes, 2010
Synthesis of 1,3,4-oxadiazole containing peptidomimetics is described by a p-TsCl/pyridine-mediated cyclization of the corresponding dipeptidyl thiosemicarbazides, which are readily prepared by coupling N-protected amino acid hydrazides with amino acid ...
Lamani, R.S.   +2 more
core   +1 more source

Study on the synthesis of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles and their acid–base interactions [PDF]

open access: yes, 2014
: A series of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles were efficiently synthesized by cyclocondensation of the appropriate 3-(pyridyl)acrylohydrazides with triethyl orthoesters in the presence of glacial acetic acid.
Agnieszka Kudelko   +2 more
core   +1 more source

Two reaction routes for the preparation of aromatic polyoxadiazoles and polytriazoles: Syntheses and properties [PDF]

open access: yes, 1994
Two reaction routes for the preparation of aromatic poly-1,3,4-oxadiazoles and poly-1,2,4-triazoles are studied and their influence on the physical properties, i.e., inherent viscosity, glass transition, degradation temperature, and film integrity of the
Boom, J.P.   +6 more
core   +2 more sources

5-Phenyl-1,3,4-oxadiazol-2-amine [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
In the title complex, C(8)H(7)N(3)O, the C-O [1.369 (2) and 1.364 (3) Å] and C=N [1.285 (3) and 1.289 (3) Å] bond lengths in the oxadiazole ring are each almost identical within systematic errors, although different substituents are attached to the ring. The phenyl ring is inclined to the planar oxadiazole ring [r.m.s. deviation 0.002 Å] by 13.42 (18)°.
Man-Man Song   +4 more
openaire   +3 more sources

Efficient one-pot, four-component synthesis of N,N-dibenzyl-N-{1-[5-(3-aryl)-1,3,4-oxadiazol-2-yl]cyclobutyl}amine derivatives from the reaction of (isocyanoimino)triphenylphosphorane, dibenzylamine, an aromatic carboxylic acid and cyclobutanone [PDF]

open access: yes, 2012
Four-component reaction of cyclobutanone, dibenzylamine and (Nisocyanimino) triphenylphosphorane in the presence of aromatic carboxylic acids proceed smoothly at room temperature and under neutral conditions to afford N,N-dibenzyl-N-{1-[5-(3-aryl)-1,3,
Kazemizadeh Reza Ali   +2 more
core   +1 more source

2,5-Bis(4-methoxyphenyl)-1,3,4-oxadiazole [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2010
En el compuesto del título, C(16)H(14)N(2)O(3), el anillo de 1,3,4-oxadiazol esencialmente plano [desviación máxima = 0.0021 (11) Å] está inclinado en ángulos diedros de 8.06 (6) y 11.21 (6)° con respecto a los dos anillos de benceno; el ángulo diedro entre los últimos anillos es de 11.66 (5)°.
B. Kalluraya   +3 more
openaire   +3 more sources

Synthesis and Antioxidant Activity of Styrylsulfonylmethyl 1,3,4-Oxadiazoles, Pyrazolyl/Isoxazolyl-1,3,4-oxadiazoles

open access: yesChemical and Pharmaceutical Bulletin, 2013
A new class of mono and bis heterocycles-styrylsulfonylmethyl 1,3,4-oxadiazoles, pyrazolyl/isoxazolyl-1,3,4-oxadiazoles were prepared and studied their antioxidant activity. The compound methyl substituted 2-(p-methylphenylamino-sulfonylmethyl)-5-[Z-(p-methylstyrylsulfonylmethyl)]-1,3,4-oxadiazole displayed slightly higher antioxidant activity than the
Guda, Mallikarjuna Reddy   +5 more
openaire   +3 more sources

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