Г. Дубурс

ORCID: 0000-0002-3071-6056
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Synthesis and Characterization of Heterocyclic Compounds
  • Chemical Reaction Mechanisms
  • Synthesis and biological activity
  • Synthesis of heterocyclic compounds
  • Synthesis and Biological Evaluation
  • Synthesis and Reactivity of Heterocycles
  • Synthesis and Reactions of Organic Compounds
  • Synthesis and Reactivity of Sulfur-Containing Compounds
  • Phenothiazines and Benzothiazines Synthesis and Activities
  • Multicomponent Synthesis of Heterocycles
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Synthesis of Organic Compounds
  • Cancer therapeutics and mechanisms
  • Bioactive Compounds and Antitumor Agents
  • Chemical Synthesis and Analysis
  • Enzyme Catalysis and Immobilization
  • Electrochemical Analysis and Applications
  • Quinazolinone synthesis and applications
  • Cyclopropane Reaction Mechanisms
  • DNA and Nucleic Acid Chemistry
  • Inorganic and Organometallic Chemistry
  • Neuroscience and Neuropharmacology Research
  • Crystallography and molecular interactions
  • Analytical Chemistry and Chromatography

Latvijas Organiskās Sintēzes Institūts
2014-2023

Institute of Organic Synthesis
2007-2022

Institute of Molecular Biology and Pathology
2018

Universidade Nova de Lisboa
2018

Google (United States)
2018

Tulane University
2018

Instituto de Biologia Experimental e Tecnológica
2018

Sapienza University of Rome
2018

Latvian Academy of Sciences
1986-2010

Slovak Academy of Sciences
2009

This review surveys the l a t e s developments pertaining o preparation of 1.4-dihydropyridines using Hantzsch synthesis and other cyclocondensation reactions.The chemistry f dihydropyridines (DHP) up year 1980 had been reviewed i n several literature1-3.Among different isomers, 1.4-DHP merits special attention, r these compounds increasing progressively.Investigations along include model NAD(P)H-analogues 1.4-dihydronicotinamideand h involvement hydrogen transfer reactions.Recently, papers...

10.3987/rev-87-370 article EN Heterocycles 1988-01-01

Recent studies o f chemical r e a c t i v y of 1.4-dihydropyridines surveyed 1The chemistry dihydropyridines (DHP) up the year 1980 was treated n d l .Recently acquired data g synthesis condensation reactions have been sumnarized too2.The present review analyses 1,4-dihydropyridines cover-

10.3987/rev-87-371 article EN Heterocycles 1988-01-01

Oxidative stress has been implicated in pathophysiology of different human stress- and age-associated disorders, including osteoporosis for which antioxidants could be considered as therapeutic remedies was suggested recently. The 1,4-dihydropyridine (DHP) derivatives are known their pleiotropic activity, with some also acting antioxidants. To find compounds potential antioxidative a group 27 structurally diverse DHPs, well one pyridine compound, were studied. A 11 DHPs 10-fold higher than...

10.3390/antiox7090123 article EN cc-by Antioxidants 2018-09-19

Abstract Diabetes mellitus (DM) is an important cardiovascular risk factor and associated with abnormalities in endothelial vascular smooth muscle cell function, evoked by chronic hyperglycemia hyperlipidemia. Chronic insulin deficiency or resistance marked decreases the intensity of glucose transport, phosphorylation, oxidation, plus ATP levels cardiac myocytes. It to search for new agents that promote consumption heart partially inhibit extensive fatty acid beta‐oxidation observed...

10.1002/cbf.1442 article EN Cell Biochemistry and Function 2007-11-07

Abstract The synthesis of cationic amphiphilic 1,4-dihydropyridine derivative, potential gene delivery agent is achieved via an efficient multi-step sequence. key step this approach a two-component Hantzsch type cyclisation 3-oxo-2-[1-phenylmethylidene]-butyric acid dodecyl ester and 3-amino-but-2-enoic utilising bis(2-hydroxyethyl)ether as solvent 1-butyl-4-methylpyridinium chloride catalyst. derivative with long alkyl chains at positions 3 5 the 1,4-DHP ring —...

10.2478/s11532-010-0132-x article EN Open Chemistry 2010-12-15

Seventeen 1,4-dihydropyridine (1,4-DHP) amphiphiles including differently substituted pyridinium, pyrazinium, N-methyl piperidinium or morpholinium moieties as the cationic head-group of molecule have been designed and synthesised. 1,4-DHP earlier proposed a promising tool for plasmid DNA (pDNA) delivery in vitro. In this work ability to self-assemble, bind pDNA transfer it into cells well cytotoxicity amphiphiles–pDNA complexes was studied. Furthermore, antiradical activity (ARA)...

10.1039/c3nj00272a article EN New Journal of Chemistry 2013-01-01

The diastereotopy of the methylene protons at positions 2 and 6 in 1,4-dihydropiridine derivatives with various substituents has been investigated. NMR spectroscopy quantum chemistry calculations show that CH···O intramolecular hydrogen bond is one factors amplifying chemical shift differences 1H-NMR spectra.

10.3390/molecules16098041 article EN cc-by Molecules 2011-09-19

Since 2,6-dimethyl-4-aryl-1,4-dihydropyridine 3,5-diesters themselves are not hydrolyzed by commercially available hydrolases, derivatives with spacers containing a hydrolyzable group were prepared. Seven acyloxymethyl esters of 5-methyl- and 5-(2-propoxyethyl) 4-[2-(difluoromethoxy)phenyl]-2,6-dimethyl-1,4-dihydro-3,5-pyridinedicarboxylate synthesized subjected to Candida rugosa lipase (CRL) catalyzed hydrolysis in wet diisopropyl ether. A methyl ester at the 5-position long or branched...

10.1021/jo0104025 article EN The Journal of Organic Chemistry 2002-01-01

Sirtuin 6 (SIRT6), a member of sirtuin family (SIRT1-7), regulates variety cellular processes involved in aging, metabolism, and cancer. Dysregulation SIRT6 is widely observed different breast cancer subtypes; however, the role function development remain largely unexplored. The aim this study was to identify novel compounds targeting which may provide new approach anti-cancer therapy for Virtual screening utilized discover potential vitro screening. In addition, 1,4-dihydropyridine...

10.1016/j.biopha.2021.111452 article EN cc-by Biomedicine & Pharmacotherapy 2021-03-06

Endopolyploidy and genomic instability are shared features of both stress-induced cellular senescence malignant growth. Here, we examined these facets in the widely used normal human fibroblast model senescence, IMR90. At presenescence stage, a small (2–7%) proportion cells overcome 4n-G1 checkpoint, simultaneously inducing self-renewal (NANOG-positivity), DNA damage response (DDR; γ-H2AX-positive foci), (p16inka4a- p21CIP1-positivity) signalling, some reach octoploid content divide. All...

10.4061/2011/103253 article EN cc-by Journal of Aging Research 2011-01-01
Coming Soon ...