Results 81 to 90 of about 370,384 (214)

Crystal structure of ethyl 2-[9-(5-bromo-2-hydroxyphenyl)-1,8-dioxo-1,2,3,4,5,6,7,8,9,10-decahydroacridin-10-yl]acetate

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C23H24BrNO5, the central 1,4-dihydropyridine ring of the 1,2,3,4,5,6,7,8,9,10-decahydroacridine ring system adopts a half-chair conformation. The two cyclohexene rings fused to the central ring both have a twisted-boat conformation.
Shaaban K. Mohamed, Mehmet Akkurt, Jerry P. Jasinski, Antar A. Abdelhamid, Asmaa H. Tamam, Mustafa R. Albayati   +5 more
doaj   +1 more source

Polymorphism and mechanochromism of N-alkylated 1,4-dihydropyridine derivatives containing different electron-withdrawing end groups

, 2017
A series ofN-alkylated 1,4-dihydropyridine derivatives were reported to exhibit polymorphic and mechanochromic properties.
Yibin Zhou, Miaochang Liu, Yuxiang Wang, Jinchang Ding, Xiaobo Huang, Yunxiang Lei, Ge Wu, Huayue Wu, Yixiang Cheng, Lebin Qian   +9 more
core   +1 more source

Synthesis of new 1,4 - dihydropyridine derivatives, psysico - chemical characterisation and comparison

, 2013
Jaunu 1,4-dihidropiridīna atvasinājumu sintēze, to fiziko-ķīmiskais raksturojums un salīdzinājums. Pogulis A., zinātniskais vadītājs M. Sc. Ruciņš M. Bakalaura darbs, 32 lappuses, 8 attēli, 1 tabula, 26 literatūras avoti. Latviešu valodā.
Pogulis, Andris
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Effects of dietary 1,4-dihydropyridine on fatty liver of laying hens

浙江大学学报. 农业与生命科学版, 2003
Five hundred and fourty of laying hens at the age of 40 weeks were randomly allotted to 3 groups, each of which included 4 replicates of 45 hens. The groups were fed with a basal corn-soybean diet, supplemented with 0 (control),150 mg/kg, 300 mg/kg 1,4 ...
ZOU Xiao-ting, ZHU Jing-lan, XU Zi-rong
doaj   +1 more source

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

Molecules, 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, Mohamed E. Azab, Mohamed M. Youssef   +2 more
doaj   +1 more source

Affinity Purification of Antibodies Specific for 1,4-Dihydropyridine Ca 2+ Channel Blockers [PDF]

, 2020
High-affinity antibodies specific for the 1,4-dihydropyridine Ca 2+ channel blockers have been produced in sheep and affinity purified using a dihydropyridine-Sepharose affinity column.
Kevin P Campbell, Alan H Sharp
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Establishing the Thermodynamic Cards of Dipine Models’ Oxidative Metabolism on 21 Potential Elementary Steps

Molecules
Dipines are a type of important antihypertensive drug as L-calcium channel blockers, whose core skeleton is the 1,4-dihydropyridine structure. Since the dihydropyridine ring is a key structural factor for biological activity, the thermodynamics of the ...
Guang-Bin Shen, Shun-Hang Gao, Yan-Wei Jia, Xiao-Qing Zhu, Bao-Chen Qian   +4 more
doaj   +1 more source

Microwave Induced Solvent-free and Catalyst-free Synthesis of 1,4- Dihydropyridine Derivatives using Ammonium Bicarbonate [PDF]

, 2020
One-pot synthesis of 1,4-dihydropyridine derivatives by reacting an aldehyde, a β-ketoester and ammonium bicarbonate in the presence of microwaves without a catalyst under solvent-free conditions is described. Using this green method, 1,4-dihydropyridine
B Vijayakumar
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Crystal structure of ethyl 4-[4-(dimethylamino)phenyl]-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2018
In the title racemic compound, ethyl 4-(4-dimethylaminophenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, the common structural features in this type of compound, such as the flat-boat conformation of the 1,4-dihydropyridine (1,4-
Scott A. Steiger, Chun Li, Nicholas R. Natale   +2 more
doaj   +1 more source

Unexpected diastereotopic behaviour in the H-1 NMR spectrum of 1,4-dihydropyridine derivatives triggered by chiral and prochiral centres [PDF]

, 2005
1,4-dihydropyridine derivatives constitute an important pharmacological group for the treatment of cardiovascular diseases. We have synthesised a series 4-(5'-nitro-2'-furyl)-1,4-dihydropyridine derivatives, which were characterised by H-1-NMR.
Núñez Vergara, Luis, Argüello da Silva, Jacqueline, Navarrete, Patricio, Barría, Claudio Saitz, Squella Serrano, Juan, Jullian Matthaei, Carolina, Barría, Claudio, Navarrete Encina, Patricio, Da Silva, Jaqueline   +8 more
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