5 research outputs found

    Π‘Π΅Π»Π΅ΠΊΡ‚ΠΈΠ²Π½Ρ‹Π΅ ΠΈΠ½Π³ΠΈΠ±ΠΈΡ‚ΠΎΡ€Ρ‹ карбоксилэстСразы для ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ эффСктивности, бСзопасности ΠΈ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ примСнСния лСкарствСнных ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ², содСрТащих слоТноэфирныС Π³Ρ€ΡƒΠΏΠΏΡ‹

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    In clinical practice, a large number of prodrugs and active drugs containing an ester, carbamate or amide moiety are used. Carboxylesterase (CaE, EC 3.1.1.1) is the key enzyme of hydrolytic metabolism of such drugs in the body, it largely determines their pharmacokinetics, bioavailability, efficacy and possible toxic effects. Using CaE selective inhibitors as components of combined drug therapy it is possible us to regulate the rate of hydrolytic transformation of ester-containing drugs and opens the possibility of their rational use. The development of effective and selective CaE inhibitors suitable for in vivo application is a new promising approach in medicinal chemistry and pharmacology that allows to improve the efficacy, bioavailability and reduce the side effects of ester-containing drugs.Π’ клиничСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ примСняСтся большоС число пролСкарств ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Ρ… лСкарствСнных срСдств, содСрТащих ΡΠ»ΠΎΠΆΠ½ΠΎΡΡ„ΠΈΡ€Π½ΡƒΡŽ, ΠΊΠ°Ρ€Π±Π°ΠΌΠ°Ρ‚Π½ΡƒΡŽ ΠΈΠ»ΠΈ Π°ΠΌΠΈΠ΄Π½ΡƒΡŽ Π³Ρ€ΡƒΠΏΠΏΠΈΡ€ΠΎΠ²ΠΊΡƒ. ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹ΠΌ Ρ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚ΠΎΠΌ гидролитичСского ΠΌΠ΅Ρ‚Π°Π±ΠΎΠ»ΠΈΠ·ΠΌΠ° Ρ‚Π°ΠΊΠΈΡ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² Π² ΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠ΅ ΡΠ²Π»ΡΡŽΡ‚ΡΡ карбоксилэстСразы (КЭ, КЀ 3.1.1.1), ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π² Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ стСпСни ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡŽΡ‚ ΠΈΡ… Ρ„Π°Ρ€ΠΌΠ°ΠΊΠΎΠΊΠΈΠ½Π΅Ρ‚ΠΈΠΊΡƒ, ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Ρ‹Π΅ токсичСскиС эффСкты этих лСкарствСнных срСдств. ИспользованиС сСлСктивных ΠΈΠ½Π³ΠΈΠ±ΠΈΡ‚ΠΎΡ€ΠΎΠ² КЭ Π² качСствС ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ² ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ лСкарствСнной Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ позволяСт Ρ€Π΅Π³ΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΡΠΊΠΎΡ€ΠΎΡΡ‚ΡŒ гидролитичСского прСвращСния лСкарствСнных ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² со слоТноэфирной Π³Ρ€ΡƒΠΏΠΏΠΎΠΉ ΠΈ ΠΎΡ‚ΠΊΡ€Ρ‹Π²Π°Π΅Ρ‚ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈΡ… Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ использования. Π‘ΠΎΠ·Π΄Π°Π½ΠΈΠ΅ эффСктивных ΠΈ сСлСктивных ΠΈΠ½Π³ΠΈΠ±ΠΈΡ‚ΠΎΡ€ΠΎΠ² КЭ для примСнСния in vivo, являСтся Π½ΠΎΠ²Ρ‹ΠΌ пСрспСктивным ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ΠΎΠΌ Π² мСдицинской Ρ…ΠΈΠΌΠΈΠΈ ΠΈ Ρ„Π°Ρ€ΠΌΠ°ΠΊΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΠΌ ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ, Π±ΠΈΠΎΠ΄ΠΎΡΡ‚ΡƒΠΏΠ½ΠΎΡΡ‚ΡŒ ΠΈ ΡΠ½ΠΈΠ·ΠΈΡ‚ΡŒ ΠΏΠΎΠ±ΠΎΡ‡Π½Ρ‹Π΅ эффСкты многочислСнных лСкарствСнных срСдств, содСрТащих слоТноэфирныС Π³Ρ€ΡƒΠΏΠΏΠΈΡ€ΠΎΠ²ΠΊΠΈ

    ВлияниС Ρ€Π°Π·ΠΌΠ΅Ρ€Π° Ρ†ΠΈΠΊΠ»Π° ΠΈ структуры спСйсСра ΠΊΠΎΠ½ΡŠΡŽΠ³Π°Ρ‚ΠΎΠ² Ρ‚Π°ΠΊΡ€ΠΈΠ½Π° ΠΈ Π΅Π³ΠΎ Ρ†ΠΈΠΊΠ»ΠΎΠΏΠ΅Π½Ρ‚ΠΈΠ»ΡŒΠ½ΠΎΠ³ΠΎ Π³ΠΎΠΌΠΎΠ»ΠΎΠ³Π° с 5-(4-Ρ‚Ρ€ΠΈΡ„Ρ‚ΠΎΡ€ΠΌΠ΅Ρ‚ΠΈΠ»-Ρ„Π΅Π½ΠΈΠ»Π°ΠΌΠΈΠ½ΠΎ)-1,2,4-Ρ‚ΠΈΠ°Π΄ΠΈΠ°Π·ΠΎΠ»ΠΎΠΌ Π½Π° спСктр биологичСской активности

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    The conjugates of tacrine and its cyclopentyl analogue with 5-(4-trifluoromethyl-phenylamino)-1,2,4-thiadiazole, combined with two different spacers, pentylaminopropane and pentylaminopropene, were synthesized. Their esterase profile, the ability to displace propidium from the peripheral anionic site (PAS) of acetylcholinesterase (AChE) and antioxidant activity in the ABTS test were investigated. The compounds obtained effectively inhibit cholinesterases with a predominant effect on butyrylcholinesterase, displace propidium from the PAS of Electrophorus electricus AChE (EeAChE) and exhibit a high radical-scavenging capacity. It is shown that, depending on the spacer structure, particulary, the presence of a propenamine or propanamine fragment, the spectrum of biological activity of the conjugates changes.Π‘ΠΈΠ½Ρ‚Π΅Π·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ ΠΊΠΎΠ½ΡŠΡŽΠ³Π°Ρ‚Ρ‹ Ρ‚Π°ΠΊΡ€ΠΈΠ½Π° ΠΈ Π΅Π³ΠΎ Ρ†ΠΈΠΊΠ»ΠΎΠΏΠ΅Π½Ρ‚ΠΈΠ»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΎΠ³Π° с 5-(4-Ρ‚Ρ€ΠΈΡ„Ρ‚ΠΎΡ€ΠΌΠ΅Ρ‚ΠΈΠ»-Ρ„Π΅Π½ΠΈΠ»Π°ΠΌΠΈΠ½ΠΎ)-1,2,4- Ρ‚ΠΈΠ°Π΄ΠΈΠ°Π·ΠΎΠ»ΠΎΠΌ, ΠΎΠ±ΡŠΠ΅Π΄ΠΈΠ½Ρ‘Π½Π½Ρ‹Π΅ двумя Ρ€Π°Π·Π½Ρ‹ΠΌΠΈ спСйсСрами – ΠΏΠ΅Π½Ρ‚ΠΈΠ»Π°ΠΌΠΈΠ½ΠΎΠΏΡ€ΠΎΠΏΠ°Π½ΠΎΠ²Ρ‹ΠΌ ΠΈ ΠΏΠ΅Π½Ρ‚ΠΈΠ»Π°ΠΌΠΈΠ½ΠΎΠΏΡ€ΠΎΠΏΠ΅Π½ΠΎΠ²Ρ‹ΠΌ, исслСдован ΠΈΡ… эстСразный ΠΏΡ€ΠΎΡ„ΠΈΠ»ΡŒ, ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒ Π²Ρ‹Ρ‚Π΅ΡΠ½ΡΡ‚ΡŒ ΠΏΡ€ΠΎΠΏΠΈΠ΄ΠΈΠΉ ΠΈΠ· пСрифСричСского Π°Π½ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ сайта (ПАБ) ацСтилхолинэстСразы (АΠ₯Π­) ΠΈ антиоксидантная Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π² тСстС АБВБ. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ соСдинСния эффСктивно ΠΈΠ½Π³ΠΈΠ±ΠΈΡ€ΡƒΡŽΡ‚ холинэстСразы с прСимущСствСнным дСйствиСм Π½Π° бутирилхолинэстСразу, Π²Ρ‹Ρ‚Π΅ΡΠ½ΡΡŽΡ‚ ΠΏΡ€ΠΎΠΏΠΈΠ΄ΠΈΠΉ ΠΈΠ· ПАБ АΠ₯Π­ ΠΈΠ· Electrophorus electricus (EeАΠ₯Π­) ΠΈ ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‚ высокой Ρ€Π°Π΄ΠΈΠΊΠ°Π»-ΡΠ²ΡΠ·Ρ‹Π²Π°ΡŽΡ‰Π΅ΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒΡŽ. Показано, Ρ‡Ρ‚ΠΎ Π² зависимости ΠΎΡ‚ строСния спСйсСра, Π° ΠΈΠΌΠ΅Π½Π½ΠΎ наличия Π² Π½Π΅ΠΌ ΠΏΡ€ΠΎΠΏΠ΅Π½Π°ΠΌΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ΠΈΠ»ΠΈ ΠΏΡ€ΠΎΠΏΠ°Π½Π°ΠΌΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ Ρ„Ρ€Π°Π³ΠΌΠ΅Π½Ρ‚Π°, мСняСтся спСктр биологичСской активности ΠΊΠΎΠ½ΡŠΡŽΠ³Π°Ρ‚ΠΎΠ²

    Synthesis, molecular docking, and biological activity of 2-vinyl chromones: Toward selective butyrylcholinesterase inhibitors for potential Alzheimer's disease therapeutics

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    We investigated the biological activity of a series of substituted chromeno[3,2-c]pyridines, including compounds previously synthesized by our group and novel compounds whose syntheses are reported here. Tandem transformation of their tetrahydropyridine ring under the action of activated alkynes yielding 2-vinylsubstituted chromones was used to prepare nitrogen-containing derivatives of a biologically active chromone system. The inhibitory activity of these chromone derivatives against acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and carboxylesterase (CaE) was investigated using the methods of enzyme kinetics and molecular docking. Antioxidant (antiradical) activity of the compounds was assessed in the ABTS assay. The results demonstrated that a subset of the studied chromone derivatives selectively inhibit BChE but do not exhibit antiradical activity. In addition, the results of molecular docking effectively explained the observed features in the efficacy, selectivity, and mechanism of BChE inhibition by the chromone derivatives. Β© 2018 Elsevier Lt

    Synthesis, molecular docking, and biological activity of 2-vinyl chromones: Toward selective butyrylcholinesterase inhibitors for potential Alzheimer's disease therapeutics

    No full text
    We investigated the biological activity of a series of substituted chromeno[3,2-c]pyridines, including compounds previously synthesized by our group and novel compounds whose syntheses are reported here. Tandem transformation of their tetrahydropyridine ring under the action of activated alkynes yielding 2-vinylsubstituted chromones was used to prepare nitrogen-containing derivatives of a biologically active chromone system. The inhibitory activity of these chromone derivatives against acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and carboxylesterase (CaE) was investigated using the methods of enzyme kinetics and molecular docking. Antioxidant (antiradical) activity of the compounds was assessed in the ABTS assay. The results demonstrated that a subset of the studied chromone derivatives selectively inhibit BChE but do not exhibit antiradical activity. In addition, the results of molecular docking effectively explained the observed features in the efficacy, selectivity, and mechanism of BChE inhibition by the chromone derivatives. Β© 2018 Elsevier Lt
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