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Khudina OG, Grishchenko MV, Makhaeva GF, Kovaleva NV, Boltneva NP, Rudakova EV, Lushchekina SV, Shchegolkov EV, Borisevich SS, Burgart YV, Saloutin VI, Charushin VN. Conjugates of amiridine and thiouracil derivatives as effective inhibitors of butyrylcholinesterase with the potential to block β-amyloid aggregation. Arch Pharm (Weinheim) 2024; 357:e2300447. [PMID: 38072670 DOI: 10.1002/ardp.202300447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/29/2023] [Accepted: 10/25/2023] [Indexed: 02/04/2024]
Abstract
New amiridine-thiouracil conjugates with different substituents in the pyrimidine fragment (R = CH3 , CF2 Н, CF3 , (CF2 )2 H) and different spacer lengths (n = 1-3) were synthesized. The conjugates rather weakly inhibit acetylcholinesterase (AChE) and exhibit high inhibitory activity (IC50 up to 0.752 ± 0.021 µM) and selectivity to butyrylcholinesterase (BChE), which increases with spacer elongation; the lead compounds are 11c, 12c, and 13c. The conjugates are mixed-type reversible inhibitors of both cholinesterases and practically do not inhibit the structurally related off-target enzyme carboxylesterase. The results of molecular docking to AChE and BChE are consistent with the experiment on enzyme inhibition and explain the structure-activity relationships, including the rather low anti-AChE activity and the high anti-BChE activity of long-chain conjugates. The lead compounds displace propidium from the AChE peripheral anion site (PAS) at the level of the reference compound donepezil, which agrees with the mixed-type mechanism of AChE inhibition and the main mode of binding of conjugates in the active site of AChE due to the interaction of the pyrimidine moiety with the PAS. This indicates the ability of the studied conjugates to block AChE-induced aggregation of β-amyloid, thereby exerting a disease-modifying effect. According to computer calculations, all synthesized conjugates have an ADME profile acceptable for drugs.
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Affiliation(s)
- Olga G Khudina
- Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Maria V Grishchenko
- Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Galina F Makhaeva
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry (IPAC RAS), Russian Academy of Sciences, Chernogolovka, Russia
| | - Nadezhda V Kovaleva
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry (IPAC RAS), Russian Academy of Sciences, Chernogolovka, Russia
| | - Natalia P Boltneva
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry (IPAC RAS), Russian Academy of Sciences, Chernogolovka, Russia
| | - Elena V Rudakova
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry (IPAC RAS), Russian Academy of Sciences, Chernogolovka, Russia
| | - Sofya V Lushchekina
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry (IPAC RAS), Russian Academy of Sciences, Chernogolovka, Russia
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Evgeny V Shchegolkov
- Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Sophia S Borisevich
- Institute of Cyber Intelligence Systems, National Research Nuclear University MEPhI, Moscow, Russia
| | - Yanina V Burgart
- Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Victor I Saloutin
- Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Valery N Charushin
- Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
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Ahmad S, Gul N, Ahmad M, Almehmadi M, Shafie A, Shah SAA, Rahman NU, Ahmad H. Isolation, crystal structure, DFT calculation and molecular docking of uncinatine-A isolated from Delphinium uncinatum. Fitoterapia 2022; 162:105268. [PMID: 35963483 DOI: 10.1016/j.fitote.2022.105268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/06/2022] [Accepted: 08/07/2022] [Indexed: 11/26/2022]
Abstract
The main objective of our present research work was to explore molecular insight for potentially active new acetylcholinesterase inhibitor from the aerial parts of Delphinium uncinatum. New norditerpenoid alkaloids, uncinatine-A, was isolated from the basic alkaloidal fraction of D. uncinatum, based on bioactivity guided isolation. The structure of uncinatine-A was determined through latest spectroscopic techniques including single X-Ray diffraction technique. The structural data and electronic properties of uncinatine-A was also calculated by Density Functional Theory (DFT) using B3LYP/6-31þ G (p) basis set. The isolated natural product was evaluated for their acetyl cholinesterase inhibitory potential in dose dependent protocol (62.5-1000 μg/mL), followed by molecular docking studies. Significant competitive type inhibition activity (IC50 = 207.73 ± 0.3) was shown by isolated natural norditerpenoid against cholinesterase targets in comparison with standard drugs available in the market such as galanthamine. The molecular docking results showed that isolated natural product was well accommodated by AChE in the active site with docking scores -11.0326. This is the first report indicating uncinatine-A as a potent acetylcholinesterase inhibitor and can be used as a target drug in cerebral dementia and Alzheimer diseases.
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Affiliation(s)
- Shujaat Ahmad
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir (U) 18000, KP, Pakistan
| | - Nadia Gul
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan
| | - Manzoor Ahmad
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan.
| | - Mazen Almehmadi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O Box 11099, Taif 21944, Saudi Arabia
| | - Alaa Shafie
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O Box 11099, Taif 21944, Saudi Arabia
| | - Syed Adnan Ali Shah
- Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam 42300, Selangor, Malaysia; Atta-Ur-Rahman Institute for Natural Products Discovery (AuRIns), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam 42300, Selangor, Malaysia
| | - Najeeb Ur Rahman
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan
| | - Hanif Ahmad
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan.
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Zhu B, Li W, Chen H, Wu M, Hu J, Cao H, Liu X. Mechanochemical Synthesis of 1,2,4‐Triazoles via a [3+2] Cycloaddition of Azinium‐N‐imines and Nitriles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baofu Zhu
- Guangdong Pharmaceutical University CHINA
| | - Wen Li
- Guangdong Pharmaceutical University CHINA
| | | | - Minjian Wu
- Guangdong Pharmaceutical University CHINA
| | - Jijing Hu
- Guangdong Pharmaceutical University CHINA
| | - Hua Cao
- Guangdong Pharmaceutical University CHINA
| | - Xiang Liu
- Guangdong Pharmaceutical University CHINA
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Zribi L, Ismaili L, Vieira‐Ferreira LF, Ferreira‐Machado IL, Marco‐Contelles J, Chabchoub F. Synthesis and Fluorescence of (E)‐3‐Aryl‐2‐(5‐aryl‐4H‐1,2,4‐triazol‐3‐yl) Acrylonitriles. ChemistrySelect 2021. [DOI: 10.1002/slct.202100571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lazhar Zribi
- Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax Université de Sfax. B. P 802. 3000 Sfax Tunisia
| | - Lhassane Ismaili
- Laboratoire de Chimie Organique et Thérapeutique, Neurosciences intégratives et cliniques EA 481 Univ. Bourgogne Franche-Comté, UFR Santé, 19 rue Ambroise Paré F-25000 Besançon France
| | - Luís F. Vieira‐Ferreira
- Instituto de Bioengenharia e Biociências (iBB), Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Isabel L. Ferreira‐Machado
- Instituto de Bioengenharia e Biociências (iBB), Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
- Polytechnic Institute of Portalegre P7300-110 Portalegre Portugal
| | - José Marco‐Contelles
- Laboratory of Medicinal Chemistry (IQOG, CSIC) Juan de la Cierva, 3 28006- Madrid Spain
| | - Fakher Chabchoub
- Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax Université de Sfax. B. P 802. 3000 Sfax Tunisia
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