76 research outputs found

    Xenobiotic-induced activation of human aryl hydrocarbon receptor target genes in Drosophila is mediated by the epigenetic chromatin modifiers

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    Aryl hydrocarbon receptor (AHR) is the key transcription factor that controls animal development and various adaptive processes. The AHR\u27s target genes are involved in biodegradation of endogenous and exogenous toxins, regulation of immune response, organogenesis, and neurogenesis. Ligand binding is important for the activation of the AHR signaling pathway. Invertebrate AHR homologs are activated by endogenous ligands whereas vertebrate AHR can be activated by both endogenous and exogenous ligands (xenobiotics). Several studies using mammalian cultured cells have demonstrated that transcription of the AHR target genes can be activated by exogenous AHR ligands, but little is known about the effects of AHR in a living organism. Here, we examined the effects of human AHR and its ligands using transgenic Drosophila lines with an inducible human AhR gene. We found that exogenous AHR ligands can increase as well as decrease the transcription levels of the AHR target genes, including genes that control proliferation, motility, polarization, and programmed cell death. This suggests that AHR activation may affect the expression of gene networks that could be critical for cancer progression and metastasis. Importantly, we found that AHR target genes are also controlled by the enzymes that modify chromatin structure, in particular components of the epigenetic Polycomb Repressive complexes 1 and 2. Since exogenous AHR ligands (alternatively - xenobiotics) and small molecule inhibitors of epigenetic modifiers are often used as pharmaceutical anticancer drugs, our findings may have significant implications in designing new combinations of therapeutic treatments for oncological diseases. Β© Akishina et al

    All-Russian Physical and Sports Complex "Ready for Work and Defense" as a Way to Improve Student Youth Health

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    Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ рассматриваСтся комплСкс Β«Π“ΠΎΡ‚ΠΎΠ² ΠΊ Ρ‚Ρ€ΡƒΠ΄Ρƒ ΠΈ ΠΎΠ±ΠΎΡ€ΠΎΠ½Π΅Β» ΠΊΠ°ΠΊ ΠΎΠ΄ΠΈΠ½ ΠΈΠ· способов развития массового спорта Π² Ρ†Π΅Π»ΠΎΠΌ, Π° Ρ‚Π°ΠΊΠΆΠ΅ привлСчСния студСнчСской ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠΈ ΠΊ физичСской ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Π΅, Π·Π΄ΠΎΡ€ΠΎΠ²ΠΎΠΌΡƒ ΠΎΠ±Ρ€Π°Π·Ρƒ ΠΆΠΈΠ·Π½ΠΈ

    Π₯имичСская модификация Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… соСдинСний азотсодСрТащими Π³Π΅Ρ‚Π΅Ρ€ΠΎΡ†ΠΈΠΊΠ»Π°ΠΌΠΈ

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    Heterocyclic compounds have an extremely important practical application, since many heterocycles are the basis of the most valuable medicinal substances, both natural (vitamins, enzymes, alkaloids, etc.) and synthetic biologically active compounds. The work mainly considers the most relevant directions for various purposes drugs search by modifying known bioactive natural, organoelement and framework compounds with 1,2-azole, oxazole, oxadiazole, thiazole, triazole, pyridine, pyrimidine heterocycles over the past 10 years. Chemical modification makes it possible to increase the water solubility of the compounds, which is important when choosing the pathways for the most rational drug introduction into the body, to reduce the toxicity of the corresponding substances, to increase the breadth of the therapeutic action, and also to give new valuable medicinal properties, thus significantly expanding their application in medicine and agriculture.БоСдинСния гСтСроцикличСского ряда ΠΈΠΌΠ΅ΡŽΡ‚ ΠΈΡΠΊΠ»ΡŽΡ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π²Π°ΠΆΠ½ΠΎΠ΅ практичСскоС Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅, Ρ‚Π°ΠΊ ΠΊΠ°ΠΊ ΠΌΠ½ΠΎΠ³ΠΈΠ΅ Π³Π΅Ρ‚Π΅Ρ€ΠΎΡ†ΠΈΠΊΠ»Ρ‹ Π»Π΅ΠΆΠ°Ρ‚ Π² основС ΠΌΠΎΠ»Π΅ΠΊΡƒΠ» Ρ†Π΅Π½Π½Π΅ΠΉΡˆΠΈΡ… лСкарствСнных вСщСств ΠΊΠ°ΠΊ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Π½Ρ‹Ρ… (Π²ΠΈΡ‚Π°ΠΌΠΈΠ½Ρ‹, Ρ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚Ρ‹, Π°Π»ΠΊΠ°Π»ΠΎΠΈΠ΄Ρ‹ ΠΈ Π΄Ρ€.), Ρ‚Π°ΠΊ ΠΈ синтСтичСских биологичСски Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Ρ… соСдинСний. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ Π² основном рассмотрСны Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹Π΅ Π·Π° послСдниС 10 Π»Π΅Ρ‚ направлСния поиска лСкарствСнных срСдств Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΎΠ³ΠΎ назначСния ΠΏΡƒΡ‚Π΅ΠΌ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ извСстных Π±ΠΈΠΎΠ°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Ρ… ΠΏΡ€ΠΈΡ€ΠΎΠ΄Π½Ρ‹Ρ…, элСмСнтоорганичСских ΠΈ каркасных соСдинСний 1,2-Π°Π·ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ, ΠΎΠΊΡΠ°Π·ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ, ΠΎΠΊΡΠ°Π΄ΠΈΠ°Π·ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ, Ρ‚ΠΈΠ°Π·ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ, Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ, ΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½ΠΎΠ²Ρ‹ΠΌ, ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½ΠΎΠ²Ρ‹ΠΌ Π³Π΅Ρ‚Π΅Ρ€ΠΎΡ†ΠΈΠΊΠ»Π°ΠΌΠΈ. Π₯имичСская модификация позволяСт ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ Π²ΠΎΠ΄ΠΎΡ€Π°ΡΡ‚Π²ΠΎΡ€ΠΈΠΌΠΎΡΡ‚ΡŒ соСдинСний, Ρ‡Ρ‚ΠΎ являСтся Π²Π°ΠΆΠ½Ρ‹ΠΌ ΠΏΡ€ΠΈ Π²Ρ‹Π±ΠΎΡ€Π΅ ΠΏΡƒΡ‚Π΅ΠΉ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ ввСдСния ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π° Π² ΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌ, ΡƒΠΌΠ΅Π½ΡŒΡˆΠΈΡ‚ΡŒ Ρ‚ΠΎΠΊΡΠΈΡ‡Π½ΠΎΡΡ‚ΡŒ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… вСщСств, ΡƒΠ²Π΅Π»ΠΈΡ‡ΠΈΡ‚ΡŒ ΡˆΠΈΡ€ΠΎΡ‚Ρƒ тСрапСвтичСского дСйствия, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€ΠΈΠ΄Π°Ρ‚ΡŒ вСщСствам Π½ΠΎΠ²Ρ‹Π΅ Ρ†Π΅Π½Π½Ρ‹Π΅ Π»Π΅Ρ‡Π΅Π±Π½Ρ‹Π΅ свойства, Ρ‡Ρ‚ΠΎ Ρ‚Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ Π² Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅ Ρ€Π°ΡΡˆΠΈΡ€ΠΈΡ‚ΡŒ ΠΈΡ… ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π² ΠΌΠ΅Π΄ΠΈΡ†ΠΈΠ½Π΅ ΠΈ сСльском хозяйствС

    ΠœΠΠžΠ“ΠžΠšΠžΠœΠŸΠžΠΠ•ΠΠ’ΠΠ«Π• Π‘Π˜Π‘Π’Π•ΠœΠ« Π‘ Π’Π Π•Π₯Π€ΠΠ—ΠΠ«Πœ Π ΠΠ‘Π‘Π›ΠΠ˜Π’ΠΠΠ˜Π•Πœ

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    A review of scientific publications that describe systems with a three-phase splitting region is presented. Mechanisms of a three-phase splitting region formation are shown. All the suggested classifications of diagrams with a three-phase splitting region are presented. Methods for studying the evolution of a three-phase splitting region are described. Problems connected with the mathematical modeling of liquid - liquid - liquid equilibrium are considered. The ability of mixtures to form three-phase splitting regions and opportunities of separating such mixtures by special methods is analyzed. A list of known systems with three and more liquid phases is presented.Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСн ΠΎΠ±Π·ΠΎΡ€ Π½Π°ΡƒΡ‡Π½Ρ‹Ρ… ΠΏΡƒΠ±Π»ΠΈΠΊΠ°Ρ†ΠΈΠΉ, посвящСнных исслСдованию систСм с Ρ‚Ρ€Π΅Ρ…Ρ„Π°Π·Π½Ρ‹ΠΌ расслаиваниСм, ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½Π½Ρ‹Ρ… соСдинСниями Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… классов. РассмотрСны ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΡ‹ образования областСй Ρ‚Ρ€Π΅Ρ…Ρ„Π°Π·Π½ΠΎΠ³ΠΎ расслаивания. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ ΠΏΡ€ΠΈΠΌΠ΅Ρ€Ρ‹ классификаций Π΄ΠΈΠ°Π³Ρ€Π°ΠΌΠΌ расслаивания ΠΌΠ½ΠΎΠ³ΠΎΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π½Ρ‹Ρ… систСм ΠΈ описаны ΠΏΠΎΠ΄Ρ…ΠΎΠ΄Ρ‹ ΠΊ исслСдованию ΡΠ²ΠΎΠ»ΡŽΡ†ΠΈΠΈ области Ρ‚Ρ€Π΅Ρ…Ρ„Π°Π·Π½ΠΎΠ³ΠΎ расслаивания. Π’Π°ΠΊΠΆΠ΅ ΡƒΠ΄Π΅Π»Π΅Π½ΠΎ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°ΠΌ модСлирования равновСсия ΠΆΠΈΠ΄ΠΊΠΎΡΡ‚ΡŒ-ΠΆΠΈΠ΄ΠΊΠΎΡΡ‚ΡŒ-ΠΆΠΈΠ΄ΠΊΠΎΡΡ‚ΡŒ ΠΈ использованию свойства смСси ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Ρ‹Π²Π°Ρ‚ΡŒ области Ρ‚Ρ€Π΅Ρ…Ρ„Π°Π·Π½ΠΎΠ³ΠΎ расслаивания для раздСлСния смСсСй экстракционными ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ, ΡΠΎΡ‡Π΅Ρ‚Π°ΡŽΡ‰ΠΈΠΌΠΈ Ρ€Π΅ΠΊΡ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΡŽ ΠΈ расслаиваниС. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½ список извСстных Π½Π° сСгодняшний дСнь систСм с трСмя ΠΈ Π±ΠΎΠ»Π΅Π΅ ΠΆΠΈΠ΄ΠΊΠΈΠΌΠΈ Ρ„Π°Π·Π°ΠΌΠΈ

    Π‘ΠΈΠ½Ρ‚Π΅Π· Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎ Π·Π°ΠΌΠ΅Ρ‰Π΅Π½Π½Ρ‹Ρ… слоТных эфиров Π½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΠΈ ΠΈΠ·ΠΎΠ½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ кислот

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    Nicotinic (3-pyridinecarboxylic) acid is one of the most important vitamins as well as substance with versatile physiological activity, since it plays significant role in the human organism. Nicotinic acid (niacin, vitamin PP, vitamin B3) is widely used in medicine as drug which has a vasodilating effect, prevents the accumulation of cholesterol and normalizes the heart function. Isonicotinic (4-pyridinecarboxylic) acid is used for the production of valuable anti-tuberculosis drugs, antidepressants, etc. However, nicotinic and isonicotinic acids have various side effects: skin hyperemia, pruritus, formation of stomach peptic ulcers, liver dysfunction and hyperglycemia. To reduce the severity of side effects, their slightly soluble salts, esters or amides are obtained. The synthesis of nicotinic and isonicotinic acid esters with vanillin benzaldehydes, cholesterol, 8-hydroxyquinoline, quinine and (4,5-dichloroisothiazol-3-yl)methanol is described. Esters were obtained by acylation of hydroxybenzaldehydes and alcohols with nicotinic and isonicotinic acid hydrochlorides in the presence of triethylamine in anhydrous methylene chloride. The IR- UV- and NMR spectra of the compounds obtained are presented.Никотиновая кислота ΠΈΠ³Ρ€Π°Π΅Ρ‚ ΡΡƒΡ‰Π΅ΡΡ‚Π²Π΅Π½Π½ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ Π² ΠΆΠΈΠ·Π½Π΅Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠ° Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ°; ΡˆΠΈΡ€ΠΎΠΊΠΎ примСняСтся Π² ΠΌΠ΅Π΄ΠΈΡ†ΠΈΠ½Π΅, Π° ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Ρ‹ Π½Π° Π΅Π΅ основС ΠΎΠΊΠ°Π·Ρ‹Π²Π°ΡŽΡ‚ ΡΠΎΡΡƒΠ΄ΠΎΡ€Π°ΡΡˆΠΈΡ€ΡΡŽΡ‰Π΅Π΅ дСйствиС, ΠΏΡ€Π΅Π΄ΠΎΡ‚Π²Ρ€Π°Ρ‰Π°ΡŽΡ‚ Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½ΠΈΠ΅ холСстСрина, Π½ΠΎΡ€ΠΌΠ°Π»ΠΈΠ·ΡƒΡŽΡ‚ Ρ€Π°Π±ΠΎΡ‚Ρƒ сСрдца. Π˜Π·ΠΎΠ½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΡƒΡŽ (4-ΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΡƒΡŽ) кислоту ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΡŽΡ‚ Π² качСствС ΡΡ‹Ρ€ΡŒΡ для получСния вСсьма Ρ†Π΅Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΡ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π½Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ², Π² производствС антидСпрСссантов ΠΈ Π΄Ρ€. Однако ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΠΈ ΠΈΠ·ΠΎΠ½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ кислот ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ ΠΏΠΎΠ±ΠΎΡ‡Π½Ρ‹Π΅ эффСкты: гипСрСмия ΠΊΠΎΠΆΠΈ, Π·ΡƒΠ΄, Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Ρ‹ ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ пСптичСских язв ΠΆΠ΅Π»ΡƒΠ΄ΠΊΠ°, дисфункция ΠΏΠ΅Ρ‡Π΅Π½ΠΈ, гипСргликСмия. Для сниТСния выраТСнности ΠΏΠΎΠ±ΠΎΡ‡Π½ΠΎΠ³ΠΎ дСйствия кислот ΡΠΈΠ½Ρ‚Π΅Π·ΠΈΡ€ΡƒΡŽΡ‚ΡΡ ΠΈΡ… малорастворимыС соли, эфиры, Π°ΠΌΠΈΠ΄Ρ‹. Описан синтСз слоТных эфиров Π½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΠΈ ΠΈΠ·ΠΎΠ½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ кислот с бСнзальдСгидами Π²Π°Π½ΠΈΠ»ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ряда, Π° Ρ‚Π°ΠΊΠΆΠ΅ холСстСрином, 8-гидроксихинолином, Ρ…ΠΈΠ½ΠΈΠ½ΠΎΠΌ ΠΈ (4,5-Π΄ΠΈΡ…Π»ΠΎΡ€ΠΈΠ·ΠΎΡ‚ΠΈΠ°Π·ΠΎΠ»-3-ΠΈΠ»)ΠΌΠ΅Ρ‚Π°Π½ΠΎΠ»ΠΎΠΌ. Π‘Π»ΠΎΠΆΠ½Ρ‹Π΅ эфиры ΠΏΠΎΠ»ΡƒΡ‡Π°Π»ΠΈ Π°Ρ†ΠΈΠ»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ сСрии Π³ΠΈΠ΄Ρ€ΠΎΠΊΡΠΈΠ±Π΅Π½Π·Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄ΠΎΠ² ΠΈ спиртов Π³ΠΈΠ΄Ρ€ΠΎΡ…Π»ΠΎΡ€ΠΈΠ΄Π°ΠΌΠΈ Ρ…Π»ΠΎΡ€Π°Π½Π³ΠΈΠ΄Ρ€ΠΈΠ΄ΠΎΠ² Π½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΠΈ ΠΈΠ·ΠΎΠ½ΠΈΠΊΠΎΡ‚ΠΈΠ½ΠΎΠ²ΠΎΠΉ кислот Π² присутствии триэтиламина Π² Π±Π΅Π·Π²ΠΎΠ΄Π½ΠΎΠΌ хлористом ΠΌΠ΅Ρ‚ΠΈΠ»Π΅Π½Π΅. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ ИК- Π£Π€- ΠΈ ЯМР-спСктры ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… соСдинСний

    Π‘ΠΈΠ½Ρ‚Π΅Π· ΠΈΠ·ΠΎΠΊΡΠ°Π·ΠΎΠ»ΡŒΠ½Ρ‹Ρ… ΠΈ ΠΈΠ·ΠΎΡ‚ΠΈΠ°Π·ΠΎΠ»ΡŒΠ½Ρ‹Ρ… ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄Π½Ρ‹Ρ… ΠΊΡƒΡ€ΠΊΡƒΠΌΠΈΠ½Π°

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    Curcumin is a chemical compound with antioxidant properties as well as strong anti-inflammatory, antiviral, analgesic, antimicrobial and antitumor effect, contained in the tuberous rhizomes of the turmeric plant (Curcuma longa). Curcumin derivatives are being intensively studied as potential drugs – antitumor drugs for the treatment of certain forms of cancer. The presence of reactive functional groups makes curcumin a convenient starting compound for the further chemical modification. The esters of curcumin and 5-phenylisoxazole-3-carboxylic acid, 5-(p-tolyl)isoxazole-3-carboxylic acid, 4,5- dichloroisothiazole-3-carboxylic acid and adduct of 5-(p-tolyl)isoxazol-3-carbaldehyde with curcumin were synthesized. Esters were obtained by acylation of curcumin with heterocycle-containing carboxylic acid chloride in diethyl ether in the presence of triethylamine. The IR and NMR spectra of the obtained compounds are described.ΠšΡƒΡ€ΠΊΡƒΠΌΠΈΠ½ – химичСскоС соСдинСниС, содСрТащССся Π² ΠΊΠ»ΡƒΠ±Π½Π΅Π²ΠΈΠ΄Π½Ρ‹Ρ… ΠΊΠΎΡ€Π½Π΅Π²ΠΈΡ‰Π°Ρ… растСния ΠΊΡƒΡ€ΠΊΡƒΠΌΠ° ΠΈ ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‰Π΅Π΅ антиоксидантными свойствами, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΎΠΊΠ°Π·Ρ‹Π²Π°ΡŽΡ‰Π΅Π΅ сильноС ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅, противовирусноС, Π±ΠΎΠ»Π΅ΡƒΡ‚ΠΎΠ»ΡΡŽΡ‰Π΅Π΅, Π°Π½Ρ‚ΠΈΠΌΠΈΠΊΡ€ΠΎΠ±Π½ΠΎΠ΅ ΠΈ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ΅ дСйствия. ΠŸΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄Π½Ρ‹Π΅ ΠΊΡƒΡ€ΠΊΡƒΠΌΠΈΠ½Π° интСнсивно ΠΈΡΡΠ»Π΅Π΄ΡƒΡŽΡ‚ΡΡ Π² качСствС ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… лСкарствСнных срСдств – ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² для Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… Ρ„ΠΎΡ€ΠΌ онкологичСских Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ. Благодаря ΠΏΡ€ΠΈΡΡƒΡ‚ΡΡ‚Π²ΠΈΡŽ Π² Π΅Π³ΠΎ ΠΌΠΎΠ»Π΅ΠΊΡƒΠ»Π΅ рСакционноспособных Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… Π³Ρ€ΡƒΠΏΠΏ ΠΌΠΎΠΆΠ΅Ρ‚ ΡΠ»ΡƒΠΆΠΈΡ‚ΡŒ ΡƒΠ΄ΠΎΠ±Π½Ρ‹ΠΌ ΠΈ лСгкодоступным исходным соСдинСниСм для ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰Π΅ΠΉ химичСской ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ. Описан синтСз слоТных эфиров ΠΊΡƒΡ€ΠΊΡƒΠΌΠΈΠ½Π° ΠΈ 5-фСнилизоксазол-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΠΉ, 5-(Ρ€-Ρ‚ΠΎΠ»ΠΈΠ»)изоксазол-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΠΉ, 4,5-Π΄ΠΈΡ…Π»ΠΎΡ€ΠΈΠ·ΠΎΡ‚ΠΈΠ°Π·ΠΎΠ»-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΠΉ кислот ΠΈ Π°Π΄Π΄ΡƒΠΊΡ‚Π° 5-(Ρ€-Ρ‚ΠΎΠ»ΠΈΠ»)изоксазол-3-ΠΊΠ°Ρ€Π±Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄Π° с ΠΊΡƒΡ€ΠΊΡƒΠΌΠΈΠ½ΠΎΠΌ. Π‘Π»ΠΎΠΆΠ½Ρ‹Π΅ эфиры ΠΏΠΎΠ»ΡƒΡ‡Π°Π»ΠΈ Π°Ρ†ΠΈΠ»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΊΡƒΡ€ΠΊΡƒΠΌΠΈΠ½Π° Ρ…Π»ΠΎΡ€Π°Π½Π³ΠΈΠ΄Ρ€ΠΈΠ΄Π°ΠΌΠΈ гСтСроциклосодСрТащих ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²Ρ‹Ρ… кислот Π² срСдС диэтилового эфира Π² присутствии триэтиламина. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ ИК- ΠΈ ЯМР-спСктры ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… соСдинСний

    Feasibility studies of the time-like proton electromagnetic form factor measurements with PANDA at FAIR

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    The possibility of measuring the proton electromagnetic form factors in the time-like region at FAIR with the \PANDA detector is discussed. Detailed simulations on signal efficiency for the annihilation of pΛ‰+p\bar p +p into a lepton pair as well as for the most important background channels have been performed. It is shown that precision measurements of the differential cross section of the reaction pΛ‰+pβ†’e++eβˆ’\bar p +p \to e^++ e^- can be obtained in a wide angular and kinematical range. The individual determination of the moduli of the electric and magnetic proton form factors will be possible up to a value of momentum transfer squared of q2≃14q^2\simeq 14 (GeV/c)2^2. The total pΛ‰+pβ†’e++eβˆ’\bar p +p\to e^++e^- cross section will be measured up to q2≃28q^2\simeq 28 (GeV/c)2^2. The results obtained from simulated events are compared to the existing data. Sensitivity to the two photons exchange mechanism is also investigated.Comment: 12 pages, 4 tables, 8 figures Revised, added details on simulations, 4 tables, 9 figure
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