Results 201 to 210 of about 9,315,415 (239)
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Modulation of manganese currents by 1, 4-dihydropyridines, isoproterenol and forskolin in rabbit ventricular cells

Pflügers Archiv - European Journal of Physiology, 2003
Although often used as a Ca(2+) channel blocker, Mn(2+), in fact, permeates through Ca(2+) channels. Under Na(+)-free conditions, depolarizing pulses evoked slowly-decaying Mn(2+) currents ( I(Mn)). Maximal I(Mn) densities in the presence of 5 and 20 mM Mn(2+) were 0.42+/-0.12 pA/pF (mean+/-SEM, n=17) and 1.23+/-0.10 pA/pF ( n=40), respectively.
Haruko, Masumiya   +3 more
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Synthesis of 1, 4-Dihydropyridines using Different Nanocatalyst Systems

Research Journal of Chemistry and Environment
1, 4-dihydropyridine (1, 4-DHP) is an important class of heterocyclic scaffold which possesses a wide variety of applications in biological and pharmacological field. In this review, we discuss the synthesis of 1, 4-dihydropyridine by using various nanocatalytic systems since 2010. Nanocatalyst provided efficient and green approach for the synthesis of
Deepak Babasaheb Phasage   +2 more
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Analysis of several 1, 4-dihydropyridine drugs ba enantioselective liquid chromatography

2005
The chiral resolution of racemic drugs into their enantiomers is of great importance, because the two enantiomers often exhibit different pharmacological activity. This work deals with a group of very popular biologically active 1, 4-dihydropyridine drugs.
Litvić, Mladen, Vinković, Vladimir
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Synthesis of 3-cyano-4, 6-diaryl-3, 4-dihydropyridine-2-thionks

Chemistry of Heterocyclic Compounds, 1983
3-Cyano-4, 6-diaryl-3, 4-dihydropyridine-2-thiones have been synthesized for the first time by the condensation of arylideneacetophenones or 1-piperidino-1-phenyl-2-benzoylethane with cyanothioacetamide and the 1, 1-dicyano-2-aryl-3-benzoylpropane with hydrogen sulfide in the presence of bases. It has been established by PMR spectroscopy that 3-cyano-3,
A. A. Krauze   +5 more
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Enantioselective analysis of 1, 4-dihydropyridine drugs by luquid chromatography

2004
The analyses for the following substances were performed: isradipine, nitrendipine, nicardipine, nisoldipine and felodipine. The most successful separations for the all investigated compounds were achieved on Chiralpak AD column that consist of amylose tris(3, 5-dimethylphenylcarbamat) as chiral selector.
Kalčić, Igor   +2 more
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Synthesis and Biological Evaluation of New 1, 4-Dihydropyridines as Antihypertensives Agents in Rats

2003
New analogues of nifedipine, as a known calcium channel blocker, were synthesized by replacing the orthonitrophenyl group on position 4 with 1-(4-Nitrobenzyl)-5-imidazolyl or 2methylthio-1-(4-Nitrobenzyl)-5-imidazolyl substituent. Effects of the new synthesized compounds on blood pressure were studied at 15, 30 and 60 min after administration by ...
Jorjani, M   +5 more
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Hybrid Docking-QSAR Studies of 1, 4-dihydropyridine-3, 5-Dicarboxamides as Potential Antitubercular Agents

Current Computer-Aided Drug Design, 2018
Tuberculosis is one of the main medical problems and some people are suffering still from this infectious disease. 1, 4-dihydropyridines are multi-target ligands that recently are recognized as anti-tubercular agents.In the current research, computational studies were conducted of some synthesized 1, 4- dihydropyridine-3, 5-dicarboxamides in non ...
Yasaman, Rasouli, Asghar, Davood
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ChemInform Abstract: Synthesis, Properties, and Cardiovascular Activity of Substituted 4‐Dihydropyridine‐2(3H)‐thiones.

ChemInform, 1988
AbstractThe dihydropyridinethiolates (V), prepared by common cyclization reactions, are converted to the thiones (VIII), the betaines (IX), and the sodium salts (X).
A. A. KRAUZE   +3 more
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Aromatization of 1, 4-dihydropyridine derivatives

2006
Pripravljeno je ukupno 29 različito supstituiranih 1, 4-dihidropiridinskih derivata korištenjem nekoliko varijanti Hantzschove kondenzacije. Prilikom pokušaja priprave derivata 35 sa prisutnom metoksi skupinom u ortho-položaju arilne grupe, korištenjem Hantzschove metode sa dva mola aminokrotonatnog estera, izoliran je literaturno novi spoj 49 kao ...
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Enantioselective and diastereoselective preparation of 1, 4-dihydropyridines

2004
Ispitane su različite metode za pripravu enantiomerno čistih 1, 4-dihidropiridinskih spojeva (1, 4-DHP). Rezultati pokazuju da se ovaj tip spojeva dobiva vrlo teško u enantiomerno čistom obliku i da ne postoji jedna općenita metoda za njihovu pripravu.
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