Results 101 to 110 of about 49,222 (248)

4-(Benzofuran-2-yl)-2-[3-(4-chlorophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]thiazole

open access: yesIUCrData, 2019
The molecule of the title compound, C26H17ClFN3OS, comprises benzofuranyl (A), thiazolyl (B), pyrazolyl (C), chlorophenyl (D) and fluorophenyl (E) ring systems. Rings A–D are almost coplanar, as indicated by the twist angles between the ring pairs A/B, B/
Gamal A. El-Hiti   +4 more
doaj   +1 more source

Push-pull bithiophene azo-chromophores bearing thiazole and benzothiazole acceptor moieties: synthesis and evaluation of their redox and nonlinear optical properties [PDF]

open access: yes, 2011
Three series of bithiophene azo dyes functionalized with thiazol-2-yl or benzothiazol-2-yl-diazene acceptor moieties were synthesized through azo coupling reaction using 2,2´-bithiophene, 5-alkoxy-2,2´-bithiophenes, 5-N,N-dialkylamino-2,2´-bithiophenes ...
Belsley, M.   +3 more
core   +1 more source

Trace Element Analysis in Human Neuroblastoma Cell Spheroids Supplemented With ZnCl2 by Micro‐XRF

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Neuroblastoma, the most common extracranial solid tumor of childhood, is responsible for ~10% of pediatric cancer deaths and has high potential for metastasis. Metals are extremely important in biological processes, and changes in their levels have been correlated with the development of cancerous growth.
J. E. P. Rosa   +10 more
wiley   +1 more source

Design and Synthesis of Oxazoline-Based Scaffolds for Hybrid Lewis Acid/Lewis Base Catalysis of Carbon–Carbon Bond Formation [PDF]

open access: yes, 2016
A new class of hybrid Lewis acid/Lewis base catalysts has been designed and prepared with an initial objective of promoting stereoselective direct aldol reactions.
Benoit, Adam R.   +6 more
core   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela   +7 more
wiley   +1 more source

Crystal structure of ethyl 5-(3-fluorophenyl)-2-[(4-fluorophenyl)methylidene]-7-methyl-3-oxo-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate

open access: yesActa Crystallographica Section E, 2014
In the title molecule, C23H18F2N2O3S, the pyrimidine ring is in a half-chair conformation and the 3-fluorophenyl group is in the axial position. The thiazole ring (r.m.s.
M. S. Krishnamurthy   +2 more
doaj   +1 more source

Review of Chagas Disease and Treatment Obstacles to Eradication [PDF]

open access: yes, 2019
The World Health Organization and the Center for Disease Control reports Chagas disease, or American trypanosomiasis, as a major neglected tropical disease prevalent in 21 endemic Latin American countries.
Sherman, Emily
core   +1 more source

Oxazole and thiazole analogs of sulindac for cancer prevention [PDF]

open access: yes, 2018
Aim: Experimental and epidemiological studies and clinical trials suggest that nonsteroidal anti-inflammatory drugs possess antitumor potential. Sulindac, a widely used nonsteroidal anti-inflammatory drug, can prevent adenomatous colorectal polyps and ...
Connelly, Michele C.   +4 more
core   +2 more sources

Intermolecular C-H...N and C-H...O interactions in (2S,4S,5R)-(-)-3,4-dimethyl-5-phenyl-2-(1,3-thiazol-2-yl)-1,3-oxazolidine [PDF]

open access: yes, 1999
The title compound, C₁₄H₁₆N₂OS, prepared from (1R,2S)-(-)-ephedrine, contains the oxazolidine ring in an envelope conformation, with the nitrogen atom 0.623 (2) Å from the plane of the other four oxazolidine ring atoms. Intermolecular C--H...N and C--
Fitzsimons, Lavelle M.   +1 more
core   +1 more source

Molecular analysis of vibrational and structural characteristics in bi-thiazole derivatives

open access: yesDiscover Chemistry
Thiazole and bi-thiazole-based compounds’ vital role in broad-spectrum biological activities attracts immeasurable research interest to investigate their molecular characteristics.
Shweta Dagar   +4 more
doaj   +1 more source

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