Results 11 to 20 of about 19,839 (264)

photodegradation of 1 4 dihydropyridine antihypertensive drugs an updated review [PDF]

open access: yesInternational Journal of Pharmacy and Pharmaceutical Sciences, 2018
1, 4-dihydropyridine calcium channels blockers (DHPs) are the most commonly used antihypertensive drugs. Unfortunately, these compounds have a significant degradability to light.
Claudia Spatari   +3 more
core   +6 more sources

Bromination and Diazo-Coupling of Pyridinethiones; Microwave Assisted Synthesis of Isothiazolopyridine, Pyridothiazine and Pyridothiazepines

open access: yesMolecules, 2012
Isothiazolopyridines, pyridothiazines and pyridothiazepines are important compounds that possess valuable biological activities. This paper reports on the synthesis of these compounds using both conventional chemical methods and modern microwave ...
Ayman M. S. Youssef   +2 more
doaj   +1 more source

Synthesis of 1, 4-Dihydropyridine Derivatives using FeCl3 as Catalyst under Solvent-free Condition

open access: hybridOriental Journal Of Chemistry, 2013
Chemistry of dihydropyridines in 1882 with Ar thur Hansh reports the β-keto ester, aldehydes and ammonia can be combined to form 1, 4-dihydropyridine was developed. Because of the many benefits of 1, 4-dihydropridine is presented and now as vital medicines to treat angina, high blood pressure and allergies have been introduced.
ABDORRAHMAN KEYHANI, Farhad Hatamjafari
openalex   +2 more sources

Ethyl 4-oxo-1,4-dihydropyridine-3-carboxylate

open access: yesIUCrData, 2021
The title compound, C8H9NO3, likely generated through hydrolysis and esterification of 3′-carboxy-3-methyl-(1,4′-bipyridin)-1-ium chloride by ethanol, which contained water, has a nearly planar conformation.
Jun Gao, Sihui Long
doaj   +1 more source

Synthesis and assessment of the cytotoxic effect of some of 1,4-dihydropyridine derivatives which contain azole moiety [PDF]

open access: yesJournal of the Serbian Chemical Society, 2021
A number of 1,4-dihydropyridine derivatives (9a–d, 10a–d and 11a–d) were designed and synthesized by the reaction of 1,3,4-oxadiazole-5-thiones and 1,2,4-triazole-5-thiones to 2,6-dibromomethyl-3,5-diethoxycarbonyl-4-(3- -nitrophenyl)-1,4-dihydropyridine.
Ghoorbannejad Saeed   +2 more
doaj   +1 more source

Hexahydroquinoline Featuring Amide Functionality: A Promising Scaffold With Calcium Channel Blocking Activity. [PDF]

open access: yesDrug Dev Res
ABSTRACT Hexahydroquinoline (HHQ) is a widely recognized scaffold that has garnered considerable attention owing to its diverse pharmacological properties. The structure of HHQ includes a 1,4‐dihydropyridine (DHP) ring, which serves as the pharmacophore for the predominant class of drugs known as calcium channel blockers.
Koçak Aslan E   +13 more
europepmc   +2 more sources

10-Benzyl-9-(4-ethoxyphenyl)-3,3,6,6-tetramethyl-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione

open access: yesActa Crystallographica Section E, 2012
In the title compound, C32H37NO3, the central dihydropyridine ring adopts a nearly planar flattened-boat conformation, whereas both cyclohexenone rings adopt half-chair conformations.
V. Sughanya, N. Sureshbabu
doaj   +1 more source

Data for the cytotoxicity, self-assembling properties and synthesis of 4-pyridinium-1,4-dihydropyridines

open access: yesData in Brief, 2020
In this data file the synthetic procedures for preparation of the original 4-pyridinium-1,4-dihydropyridines (4-Py-1,4-DHP) and their parent compounds – dialkyl 2,6-dimethyl-4-(3-pyridyl)-1,4-dihydropyridine-3,5-dicarboxylates were described. In total, 5
Klavs Pajuste   +8 more
doaj   +1 more source

Experimental and computational chemical studies on the corrosion inhibitive properties of carbonitrile compounds for carbon steel in aqueous solutions

open access: yesScientific Reports, 2021
The present work aims to study 6-amino-4-aryl-2-oxo-1-phenyl-1,2-dihydropyridine-3,5-dicarbonitrile derivatives namely: 6-Amino-2-oxo-1,4-diphenyl-1,2-dihydropyridine-3,5-dicarbonitrile (PdC-H), 6-Amino-2-oxo-1-phenyl-4-(p-tolyl)-1,2-dihydropyridine-3,5 ...
Abd El-Aziz S. Fouda   +4 more
doaj   +1 more source

Hypertension in hemodialysis patients treated with atenolol or lisinopril: a randomized controlled trial [PDF]

open access: yes, 2014
Background The purpose of this study was to determine among maintenance hemodialysis patients with echocardiographic left ventricular hypertrophy and hypertension whether in comparison with a β-blocker-based antihypertensive therapy, an angiotensin ...
Abraham, Terri N.   +4 more
core   +2 more sources

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