Results 21 to 30 of about 4,506 (161)

Design, Synthesis, and Biological Evaluation of Novel Dihydropyridine and Pyridine Analogs as Potent Human Tissue Nonspecific Alkaline Phosphatase Inhibitors with Anticancer Activity: ROS and DNA Damage-Induced Apoptosis

open access: yesMolecules, 2022
Small molecules with nitrogen-containing scaffolds have gained much attention due to their biological importance in the development of new anticancer agents. The present paper reports the synthesis of a library of new dihydropyridine and pyridine analogs
Nazeer Ahmad Khan   +9 more
doaj   +1 more source

Zinc (II)-Mediated Selective O-Benzylation of 2-Oxo-1,2-Dihydropyridines Systems

open access: yesMolecules, 2018
The selective O-benzylation of 2-oxo-1,2-dihydropyridines plays a critical role in organic synthesis of natural products and biological active molecules.
Qifan Zhou   +5 more
doaj   +1 more source

Benign synthesis of therapeutic agents: domino synthesis of unsymmetrical 1,4-diaryl-1,4-dihydropyridines in the ball-mill

open access: yesGreen Chemistry Letters and Reviews, 2022
The solvent-free preparation of unsymmetrical N-aryl-5,6-unsubstituted-1,4-dihydropyridines (DHPs) by ball-milling was investigated. Three different mechanochemical domino reactions (one-pot/one step or stepwise) were studied, the process parameters ...
Cristina Blazquez-Barbadillo   +5 more
doaj   +1 more source

Synthesis and anticholinesterase activity of a novel series of acetazolamide condensed 1,4-dihydropyridines

open access: yesCarbon Resources Conversion, 2019
A novel Acetazolamide condensed 1, 4-dihydropyridines was set up by treating of N-(5-acetamido-1, 3, 4-thiadiazol-2-ylsulfonyl)-3-oxobutanamide with an aryl aldehyde and 25–30% alkali with sight amount of barium nitrate as a catalyst. Confirmation of the
Mudduluru Niranjan Babu   +5 more
doaj   +1 more source

Antimicrobial Activity of Some Derivatives of 1,4-Dihydropyridines

open access: yesJournal of Chemistry, 2013
Hantzsch reported the synthesis of functionalized 1,4-dihydropyridines via three-component condensation of an aromatic aldehyde, ketoester, and ammonium hydroxide.
Prabha Mehta, Prabha Verma
doaj   +1 more source

In vitro bactericidal activities of two novel dihydropyridine derivatives against Mycobacterium tuberculosis

open access: yesJournal of Infection in Developing Countries, 2017
Introduction: Introducing new and effective antitubercular agents is important in tuberculosis control programs. In this study, the in vitro antitubercular activity of two novel 1,4-dihydropyridine derivatives (F-27, Cl-33) were screened against a total
Mehdi Zandhaghighi   +6 more
doaj   +1 more source

An Efficient Method for The Synthesis of Dihydropyridine by Hantzsch Reaction with Fe/SiO2 Nano Heterogeneous Catalysts

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2020
An efficient method for the synthesis of dihydropyridines (DHPs) by Hantzsch reaction with Fe/SiO2 heterogeneous catalysts was developed. The Fe/SiO2 catalysts was prepared by impregnation method.
Ateeq Rahman   +2 more
doaj   +1 more source

STROKE PREVENTION OPPORTUNITIES FOR CARDIOLOGISTS: COMPLEX MANAGEMENT OF ARTERIAL HYPERTENSION (ROLE OF CALCIUM ANTAGONISTS)

open access: yesКардиоваскулярная терапия и профилактика, 2013
The paper focuses on the important issue of cardio-cerebral interactions, cardiac comorbidities, and the need for complex therapeutic approaches. While stroke is traditionally regarded as a neurologic problem, cardiologists play an important role in its ...
E. O. Taratukhin
doaj   +1 more source

Efficient One-Pot Synthesis of 1,4-Dihydropyridines Catalyzed by Magnetic MnFe2O4 Nanoparticles

open access: yesActa Chimica Slovenica, 2022
The efficient one-pot synthesis of some 1,4-dihydropyridines is described by a condensation reaction of some aldehyde derivatives, ethyl acetoacetate and ammonium acetate in the presence of superparamagnetic manganese ferrite nanoparticles at 80 °C.
Somayeh Moradi   +2 more
doaj   +1 more source

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

open access: yesIranian 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   +1 more
doaj  

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