Results 91 to 100 of about 4,245 (200)

A survey of liquid crystalline oxadiazoles

open access: yes, 2008
We propose a survey of those oxadiazole compounds, which are mesogenic. We will see that they can have bend-shaped molecules, a biaxial nematic phase, or other interesting peculiarities in the nematic and smectic phase.
Sparavigna, Amelia
core   +1 more source

(S)-tert-Butyl 3-(3-phenyl-1,2,4-oxadiazol-5-yl)piperidine-1-carboxylate

open access: yesActa Crystallographica Section E, 2010
The title compound, C18H23N3O3, crystallized with two independent molecules (A and B) in the asymmetric unit. The phenyl ring and the 1,2,4-oxadiazole ring are inclined to one another by 19.9 (3)° in molecule A and 7.3 (3 ...
Lin Liu   +4 more
doaj   +1 more source

High throughput synthesis of 2,5-substituted indoles using a titanium carbenoid bearing boronate functionality [PDF]

open access: yes, 2008
A titanium benzylidene complex bearing a boronate group converted resin-bound esters into enol ethers. Suzuki cross-coupling with aryl iodides followed by cleavage with acid completed the solid-phase synthesis of 2,5-disubstituted N-Boc-indoles.
Hartley, R.C.   +3 more
core   +1 more source

Synthesis, toxicity towards brine shrimp (Artemia salina Leach) and antimicrobial activity evaluation of 3,5-diphenylchlorinated-1,2,4- oxadiazoles = Síntese, toxicidade frente a Artemia salina Leach e avaliação da atividade antimicrobiana de 1,2,4-oxadiazóis-3,5-difenilclorados

open access: yesActa Scientiarum: Technology, 2005
The known oxadiazoles 3,5-bis-(phenyl)-1,2,4-oxadiazole (3a); the 3-(4-chlorophenyl)-5-phenyl-1,2,4-oxadiazole (3b); and the new 3,5-diphenylchlorinated-1,2,4-oxadiazoles 3c-e were synthesized from the reaction of benzamidoximes with an appropriated acid
Silvio Luiz Machado   +4 more
doaj  

Nitric oxide enhances de novo formation of endothelial gap junctions [PDF]

open access: yes, 2003
Objective: Gap junctions (formed by connexins, Cx) are important for functional coordination of cells in the vascular wall. However, little is known about their physiological regulation in this tissue.
Gloe, Torsten   +3 more
core   +1 more source

Synthesis and biological evaluation of 1,2,4-triazoles and 1,3,4-oxadiazoles derivatives linked to 1,4-dihydropyridines scaffold

open access: yesActa Chimica Slovenica, 2017
A series of diethyl-2,6-dimethyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylate derivative coupled to 1,3,4-oxadiazole-5-thiones and 1,2,4-triazole-5-thiones moieties at C2,C6 positions of 1,4-dihydropyridine ring system was prepared.
Maghsoud Ziaie   +2 more
doaj   +1 more source

Discovery of substituted oxadiazoles as a novel scaffold for DNA gyrase inhibitors [PDF]

open access: yes, 2017
DNA gyrase and topoisomerase IV are type IIa topoisomerases that are essential bacterial enzymes required to oversee the topological state of DNA during transcription and replication processes.
Barancokova, Michaela   +7 more
core   +1 more source

Cross Linking and Degradation Mechanisms in Model Sealant Candidates [PDF]

open access: yes
Model compounds were investigated as to which type of heterocyclic ring is the most advantageous for curing sealants based on perfluoroalkylether chains. The relative thermal, thermal oxidative, hydrolytic, and fuel stability of potential crosslinks were
Ito, T. I.   +4 more
core   +1 more source

Synthesis of Some New Heterocyclic Fused Rings Compounds Based on 5-Aryl-1,3,4-Oxadiazole

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
The work includes synthesis and characterization of some new heterocyclic compounds, as flow: The compound (3) (5-(4-chlorophenyl) -2-hydrazinyl-1,3,4-oxadiazole was synthesized by using two methods; the first method includes the direct reaction between
Zahra Mohammed Abbas   +2 more
doaj  

Construction Of Recombinant Bcg Expressing The Vp1 Antigen Of Enterovirus 71 For The Development Of A Candidate Vaccine [PDF]

open access: yes, 2006
Enterovirus 71 (EV71), pencetus penyebab wabak penyakit tangan, kuku dan mulut (HMFD) di kalangan kanak-kanak telahpun dikenalpasti sebagai wabak yang diperlu dikawal segera Enterovirus 71 (EV71), the causativeing agent of outbreaks of hand, foot ...
Othman, Nurulhasanah
core   +1 more source

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