Results 71 to 80 of about 5,843 (268)

Synthesis of 1, 4-dihydropyridines (DHP) Catalyzed by Trichloroisocyanuric Acid (TCCA) in Aqueous Media [PDF]

Scientia Iranica, 2016
An array of 1, 4-dihydropyridines (DHP) derivativeswas synthesized by Hantzsch three-component reaction of aromatic aldehydes, ethyl acetoacetate and ammonium acetate using trichloroisocyanuric acid (TCCA) as an efficient catalyst in aqueous media. The proposed method was operationally simple and to make the process benign for the environment, water ...
Marziyeh Roknaddini, Enayatollah sheikhhosseiny   +1 more
openaire   +1 more source

Systemic medications associate with surgically treated cataract among adults over 50 years in Finland

Acta Ophthalmologica, EarlyView.
Abstract Purpose To identify associations between systemic drugs and cataract surgery in Finland. Methods A historic cohort study based on administrative data. Endpoint event was cataract surgery. Use of drugs in question was based on redeemed prescriptions and consisted of 156 drugs.
Antti Riikonen, Jari Haukka, Tuomas Lilius, Sirpa Loukovaara   +3 more
wiley   +1 more source

Selective Mono Bromination of 1,4-Dihydropyridines [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1997
2-monobromomethyl 1,4-dihydropyridines is selectively synthesized by bromination of the parent compound by 1.1 equivalents of pyridinium bromide perbromide in dichloromethane/pyridine at -20 °C. The same reagent in dichloromethane at 0 °C produce the 2,6-
Yousef Rastgar Mirzaei, Adeleh Moshtaghi Zenouz   +1 more
doaj  

Renal‐vascular axis: unmasking its role in vascular endothelial growth factor‐inhibitor vascular toxicity in cancer patients

British Journal of Pharmacology, EarlyView.
Abstract Vascular toxicity is a growing concern in cancer patients receiving vascular endothelial growth factor inhibitor (VEGFi) therapy, posing a significant threat to patient prognosis. While the primary mechanism of VEGFi‐induced vascular toxicity is linked to redox‐sensitive reactions that disrupt vascular tone, leading to hypertension and ...
Grace Whelan, Karla B. Neves
wiley   +1 more source

Novel Biopolymer-Based Catalyst for the Multicomponent Synthesis of N-aryl-4-aryl-Substituted Dihydropyridines Derived from Simple and Complex Anilines

Molecules
Although Hantzsch synthesis has been an established multicomponent reaction method for more than a decade, its derivative, whereby an aniline replaces ammonium acetate as the nitrogen source, has not been explored at great length.
Giovanna Bosica, Roderick Abdilla
doaj   +1 more source

A study of the temperature effect on Hantzsch reaction selectivity using Mn and Ce oxides under solvent-free conditions [PDF]

, 2020
In this communication, four materials (CeO2, CeO2(Cu), MnOx, and MnOx(Cu))were prepared, characterized and tested as catalysts, in solvent-free conditions, for the multicomponent Hantzsch reactions to obtain alternatively the 1,4-dihydropyridine or 2 ...
D'Alessandro, Oriana, Romanelli, Gustavo Pablo, Sambeth, Jorge Enrique, Sathicq, Ángel Gabriel, Thomas, Horacio Jorge   +4 more
core  

Practical recommendations for treating patients with chronic kidney disease in Australia: a multidisciplinary approach

Internal Medicine Journal, EarlyView.
Abstract Background Chronic kidney disease (CKD) is a significant public health challenge in Australia, affecting ~10% of the adult population and contributing to substantial morbidity and mortality. Diabetes, hypertension, cardiovascular disease and CKD frequently co‐exist; therefore, a multidisciplinary approach is necessary to manage these ...
M. P. Schlaich, W. P. Abhayaratna, R. Audehm, E. I. Ekinci, R. J. MacIsaac, A. J. Nelson, A. Sharma, C. Pollock   +7 more
wiley   +1 more source

Biosynthesis of MgO Nanoparticles Using Klebsiella pneumoniae and Staphylococcus aureus [PDF]

The current study describes a low-cost, environmentally friendly, and repeatable magnesium oxide nanoparticle manufacturing process mediated by Klebsiella pneumoniae and Staphylococcus aureus.
Faisal, Daiana, Mohammed Obaid, Hiro
core   +2 more sources

One-Pot, Three-Component Synthesis of 1, 4-Dihydropyridines by Using Nano Crystalline Copper Ferrite [PDF]

Chemical Science Transactions, 2012
Copper ferrite nano material (catalyst) are reusable heterogeneous initiator in the synthesis of 1, 4-dihydropyridines is presented. The reaction of substituted aromatic aldehydes, ethyl acetoacetate and ammonium acetate was achieved in presence of copper ferrite nano powders at room temperature in ethanol.
I. V. KASI VISWANATH, Y. L. N. MURTHY
openaire   +1 more source

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source