Abstract:
:As the first stable tachysterol analogs, 14-epi-19-nortachysterol and its 2-substituted derivatives were synthesized using the Stille coupling reaction between the A-ring precursor (three vinylstannanes) and the CD-ring vinyl trifrate. Among them, the 2-methylidene group was hydrogenated with Wilkinson's catalyst regioselectively to obtain 2α- and 2β-methyl analogs after separation; therefore, five new 14-epi-19- nortachysterols were constructed. All 14-epi-19-nortachysterols showed moderate to strong human vitamin D receptor (hVDR) binding affinity except the 2α-(3-hydroxypropoxy) substituted analog. X-ray cocrystallographic analysis of the [truncated hVDR]-[2-methyl-14-epi-19-nortachysterol] complex exhibited an unusual binding structure that has not been observed previously.
journal_name
Curr Top Med Chemjournal_title
Current topics in medicinal chemistryauthors
Sawada D,Kittaka Adoi
10.2174/1568026615666141208103741subject
Has Abstractpub_date
2014-01-01 00:00:00pages
2454-9issue
21eissn
1568-0266issn
1873-4294pii
CTMC-EPUB-63856journal_volume
14pub_type
杂志文章abstract::Viral entry, the first process in the reproduction of viruses, primarily involves attachment of the viral envelope proteins to membranes of the host cell. The crucial components that play an important role in viral entry include viral surface glycoprotein gp120, viral transmembrane glycoprotein gp41, host cell glycopr...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026619666190712204050
更新日期:2019-01-01 00:00:00
abstract::Firefly shows bioluminescence by "luciferin-luciferase" (L-L) reaction using luciferin, luciferase, ATP and O2. The chemical photon generation by an enzymatic reaction is widely utilized for analytical methods including biological imaging in the life science fields. To expand photondetecting analyses with firefly biol...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026616666160413130047
更新日期:2016-01-01 00:00:00
abstract::Two general aspects which need to be considered for the successful application of dendrimers for biomedical purposes are their availability at an acceptable cost and their suitability as regards their pharmacodynamic and pharmacokinetic properties. These two aspects are covered in this review. In the first part, synth...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802608785849012
更新日期:2008-01-01 00:00:00
abstract:AIMS:The need to find new antimicrobial agents to cope with this phenomenon increases. BACKGROUND:Infection diseases are illness caused by different microorganisms, such as bacteria, among those caused by resistant bacteria are associated with greater morbidity, mortality and cost of the treatment than those caused by...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/1568026619666191121123926
更新日期:2020-01-01 00:00:00
abstract::Rhodiola as one of traditional medicines has been used for clinical treatments due to its strong antioxidant properties. Phytochemical analysis revealed the presence of flavonoids, phenylpropanoids, phenylethanol/benzyl alcohol derivatives, cyanogenic glycosides and terpenoids. The bioactive compounds had been demonst...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026617666161116141334
更新日期:2017-01-01 00:00:00
abstract::The oxidative stress that is associated with the abnormal level of reactive oxygen species (ROS) is considered to be involved in the carcinogenesis process. The antioxidative defense system in the living organism regulates the toxic impact of ROS and there is strong evidence that the antioxidants prevent carcinogenesi...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802611798040741
更新日期:2011-01-01 00:00:00
abstract::Fragment-based drug discovery (FBDD) needs a biophysical assay to complement, or even replace, biochemical screening. NMR is the best choice for this because NMR delivers many different types of data that impacts medicinal chemistry decisions. There are a multitude of different NMR methods which can be employed to the...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/156802607782341055
更新日期:2007-01-01 00:00:00
abstract::The problem in this work is the computational characterization of cyclodextrins, crown ethers and hyaluronan (HA) as hosts of inclusion complexes for nanosized drug delivery vehicles in pharmaceutical formulations. The difficulty is addressed through a computational study of some thermodynamic, geometric and topologic...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/1568026615666150506145619
更新日期:2015-01-01 00:00:00
abstract::Coumarins are natural products characterized as 1,2 benzopyrones widely distributed in plants, as well as, in many species of fungi and bacteria. Nowadays, many synthetic procedures allow the discovery of coumarins with expanded chemical space. The ability to exert noncovalent interactions with many enzymes and recept...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026618666180329115523
更新日期:2018-01-01 00:00:00
abstract::Chagas disease and African sleeping sickness are trypanosomal infections that represent important public health problems in Latin America and Africa, respectively. The restriction of these diseases to the poorer parts of the world has meant that they have been largely neglected and limited progress has been made in th...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802611796575894
更新日期:2011-01-01 00:00:00
abstract::Dementia is an increasing health problem in older aged populations worldwide. Age-related changes in the brain can be observed decades before the first symptoms of cognitive decline appear. Cognitive impairment has chronic inflammatory components, which can be enhanced by systemic immune activation. There exist mutual...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/1568026620666200514090359
更新日期:2020-01-01 00:00:00
abstract::Identifying drug binding sites and elucidating drug action mechanisms are important components in a drug discovery process. In this review, we briefly compared three different approaches (sequence- based methods, structure-based methods and probe-based molecular dynamics (MD) methods) to identifying drug binding sites...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026619666181212102856
更新日期:2018-01-01 00:00:00
abstract:AIM:The aim of this study is to synthesize, characterize and biological evaluation of 3-ethyl 5- methyl2-(2-aminoethoxy)-4-(2-chlorophenyl)-1,4-dihydropyridine-3,5-dicarboxylate derivatives. BACKGROUND:An efficient synthesis of two series of novel carbamate and sulfonamide derivatives of amlodipine, 3-ethyl 5-methyl 2...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/1568026619666191105100959
更新日期:2019-01-01 00:00:00
abstract::Telomeres are structurally nucleoprotein complexes at termini of linear chromosomes and essential to chromosome stability/integrity. In normal human cells, telomere length erodes progressively with each round of cell divisions, which serves as an important barrier to uncontrolled proliferation and malignant transforma...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026620666200106145340
更新日期:2020-01-01 00:00:00
abstract::In the last few years, there has been a great increase in our understanding of pain mechanisms. Given the complexity of the mechanisms involved in pain modulation, it is surprising that the pharmacological control of pain through the application of relatively simple analgesics can be effective. Nevertheless, the appli...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/156802606778522195
更新日期:2006-01-01 00:00:00
abstract::The Human Genome Project and the explosion of high-throughput data have transformed the areas of molecular and personalized medicine, which are producing a wide range of studies and experimental results and providing new insights for developing medical applications. Research in many interdisciplinary fields is resulti...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026611313050002
更新日期:2013-01-01 00:00:00
abstract::In last decades, diet and dietary components have been regarded as important strategies to prevent the development or mitigate numerous chronic diseases, including inflammation, cardiovascular pathologies, cancer, etc. One of the most common dietary components of Asian population is soy. A plethora of research shows t...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026615666150427122709
更新日期:2015-01-01 00:00:00
abstract::For successful drug discovery it is important to understand the fundamentals of the underlying causes and consequences of the diseases for which the drug is being developed. One such physiological process in eukaryotic cells is protein phosphorylation, which is the main post-translational modification of proteins resp...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026617666170531113233
更新日期:2017-01-01 00:00:00
abstract::The emergence of multi-resistant bacteria to drugs is recognized as a major cause of the increasing number of deaths in hospitals. Killing these bacteria require multiple expensive drugs that can have side effects. Metal nanoparticles may provide a new strategy to combat them. Due the antimicrobial and antiviral prope...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026615666150414141601
更新日期:2015-01-01 00:00:00
abstract::Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used drugs but their use is hampered by gastrointestinal side effects. Cyclo-oxygenase Inhibitor Nitric Oxide Donors (CINODs) are a new class of anti-inflammatory and analgesic drugs generated by adding a nitric oxide generating moiety to the parent NSAID via a...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802607779941350
更新日期:2007-01-01 00:00:00
abstract::This chapter describes the life cycle, general morphology and ultrastructure of the larval and adult stages of Taenia solium, a parasitic flatworm of humans found in underdeveloped countries. Experimental results describing the role of proteins and glycoproteins in the host-parasite relationship, as well as the variou...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802608783790875
更新日期:2008-01-01 00:00:00
abstract::Traditionally the role of sexual steroid hormones was focused primarily on reproductive organs: the breast, female reproductive tract (uterus, mammary gland, and ovary), and male reproductive tract (testes, epididymis and prostate), however our current understanding of tissue-specific effects of sex steroids has eluci...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802611796117540
更新日期:2011-01-01 00:00:00
abstract::Pyrimidine and purine nucleosides and their derivatives have critical functions and pharmacological applications in the brain. Nucleosides and nucleobases are precursors of nucleotides, which serve as the energy-rich currency of intermediary metabolism and as precursors of nucleic acids. Nucleosides (e.g., adenosine) ...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802611795347582
更新日期:2011-01-01 00:00:00
abstract::Pancreatic cancer is a highly malignant tumor with a 5-year survival rate of less than 6%, and incidence increasing year by year globally. Pancreatic cancer has a poor prognosis and a high recurrence rate, almost the same as the death rate. However, the available effective prevention and treatment measures for pancrea...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026619666190828160804
更新日期:2019-01-01 00:00:00
abstract::Prion diseases or transmissible spongiform encephalopathies (TSEs) are fatal neurodegenerative disorders associated with the conformational conversion of the cellular prion protein, PrP(C), into a pathological form known as prion or PrP(Sc). They can be classified into sporadic, inherited and infectious forms. Spontan...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/15680266113136660169
更新日期:2013-01-01 00:00:00
abstract::Isoindole derivatives constitute an important class of biologically active heterocyclic compounds and continue to attract considerable attention due to their diverse pharmacological profile such as, antimicrobial, anthelmintic, insecticidal, cyclooxygenase isoenzyme (COX-2) and thrombin inhibition with special emphasi...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026616666160530154100
更新日期:2017-01-01 00:00:00
abstract::This review mainly covers last five year literature on CCK1R agonists and antagonists. These CCK1R ligands have been found following the two usual and complementary strategies for drug discovery: rational design based on structure activity relationships on the CCK-7 and CCK-4 peptide sequences of the endogenous ligand...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802607780960537
更新日期:2007-01-01 00:00:00
abstract::In 2010, the National Institutes of Health (NIH) established the Therapeutics for Rare and Neglected Diseases (TRND) program within the National Center for Advancing Translational Sciences (NCATS), which was created to stimulate drug discovery and development for rare and neglected tropical diseases through a collabor...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026613666131127160118
更新日期:2014-01-01 00:00:00
abstract::The treatment and prevention of atrial fibrillation (AF) remains a significant unmet medical need. Existing therapies that maintain or restore sinus rhythm (rhythm control) have deleterious effects on the ventricle. A major goal for finding new AF therapies is the identification of repolarization mechanisms that are p...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802609788340832
更新日期:2009-01-01 00:00:00
abstract::Transition metal complexes with terpyridine ligands have attracted a widespread interest with respect to biomedical applications: [(tpy)PtCl]Cl and [(tpy)RuCl(3)] are potent anti-tumor agents with activities comparable to those of cisplatin and carboplatin. The Ru(II) complexes feature a high potential as reactive pro...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802612799078919
更新日期:2012-01-01 00:00:00