1
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Valbuena A, Strobl K, Gil-Redondo JC, Valiente L, de Pablo PJ, Mateu MG. Single-Molecule Analysis of Genome Uncoating from Individual Human Rhinovirus Particles, and Modulation by Antiviral Drugs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304722. [PMID: 37806749 DOI: 10.1002/smll.202304722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/26/2023] [Indexed: 10/10/2023]
Abstract
Infection of humans by many viruses is typically initiated by the internalization of a single virion in each of a few susceptible cells. Thus, the outcome of the infection process may depend on stochastic single-molecule events. A crucial process for viral infection, and thus a target for developing antiviral drugs, is the uncoating of the viral genome. Here a force spectroscopy procedure using an atomic force microscope is implemented to study uncoating for individual human rhinovirus particles. Application of an increasing mechanical force on a virion led to a high force-induced structural transition that facilitated extrusion of the viral RNA molecule without loss of capsid integrity. Application of force to virions that h ad previously extruded the RNA, or to RNA-free capsids, led to a lower force-induced event associated with capsid disruption. The kinetic parameters are determined for each reaction. The high-force event is a stochastic process governed by a moderate free energy barrier (≈20 kcal mol-1 ), which results in a heterogeneous population of structurally weakened virions in which different fractions of the RNA molecule are externalized. The effects of antiviral compounds or capsid mutation on the kinetics of this reaction reveal a correlation between the reaction rate and virus infectivity.
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Affiliation(s)
- Alejandro Valbuena
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Klara Strobl
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Juan Carlos Gil-Redondo
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Valiente
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Pedro J de Pablo
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Madrid, Spain
- Instituto de Física de la Materia Condensada (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Mauricio G Mateu
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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2
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S J, A M, P P, G R. Anticandidal Effect of New Imidazole Derivatives Over Aspartic Protease Inhibition. Chem Biodivers 2024; 21:e202301276. [PMID: 38175829 DOI: 10.1002/cbdv.202301276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/18/2023] [Indexed: 01/06/2024]
Abstract
Candidiasis is one of the most serious microbial infections in the world. One of the main virulence factors for Candida albicans is the crucial secretion of aspartic proteases (Saps). Saps are hydrolytic enzymes that play a major role in many fungal pathophysiological processes as well as in many levels of the associations between the fungus and its host. In this work, we report on the synthesis, characterization, and anti-candida agent evaluation of a family of 13 imidazolidine-based aspartate protease inhibitors. In vitro and in silico enzyme inhibition studies have confirmed these compounds' ability to inhibit fungal aspartate protease. Based on the molecular mechanistic value scores from molecular docking and MD simulations, we selected the top compounds 5b (binding energy -13.90 kcal/mol) and 5m (binding energy -12.94 kcal/mol) from among 5a-l based on the molecular mechanistic value scores from molecular docking and MD simulations for use in in vitro validations. In the results, imidazolidine derivatives showed strong aspartic protease inhibition activity. In conclusion, compounds 5b and 5m were found as potent anti-candida agents and screened for further pre-clinical and clinical validations.
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Affiliation(s)
- Jeevitha S
- Department Biochemistry, M S Ramaiah College of Arts, Science and Commerce, Bangalore, 54, Karnataka, India
| | - Manikandan A
- Department of Microbiology, M S Ramaiah College of Arts, Science and Commerce, Bangalore, 54, Karnataka, India
| | - Pavan P
- Department of Humanities and Basic Sciences, G. Pulla Reddy Engineering College, Kurnool, 518007, India
| | - Rubalakshmi G
- Department of Biotechnology, Vinayaka Missions Kirupananda Variyar Engineering College, Salem, 08, India
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3
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Punjajom K, Sinclair PP, Saha I, Seierstad M, Ameriks MK, García-Reynaga P, Lebold TP, Sarpong R. Convergent synthesis of thiodiazole dioxides from simple ketones and amines through an unusual nitrogen-migration mechanism. Chem Sci 2023; 15:328-335. [PMID: 38131085 PMCID: PMC10731909 DOI: 10.1039/d3sc04478e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/25/2023] [Indexed: 12/23/2023] Open
Abstract
We report the modular preparation of dihydro-1,2,5-thiodiazole dioxide heterocycles starting from methyl ketones and primary amines. This one-pot, three-component coupling employs 2,3-dimethylimidazole-1-sulfonyl azide triflate as a coupling reagent and oxidant. The transformation is scalable and various ketones and amines can be used, yielding thiodiazole dioxide products in up to 89% yield. In addition, 15N- and 13C-labeling studies suggest a mechanism involving a 1,2-nitrogen migration. Together with the mechanistic studies, DFT calculations provide insight into the reaction pathway and set the stage for further exploration of the mechanistic nuances of reactions that use sulfamoyl azides. In combination with the demonstrated modularity of the approach reported herein, the derivatization of the thiodiazole dioxide products highlights the potential of this methodology to rapidly access diverse chemical structures.
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Affiliation(s)
| | - Paul P Sinclair
- Department of Chemistry, University of California Berkeley CA 94720 USA
| | - Ishika Saha
- Janssen Research and Development San Diego California 92121 USA
| | - Mark Seierstad
- Janssen Research and Development San Diego California 92121 USA
| | | | | | - Terry P Lebold
- Janssen Research and Development San Diego California 92121 USA
| | - Richmond Sarpong
- Department of Chemistry, University of California Berkeley CA 94720 USA
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4
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Yoshida S, Sako Y, Nikaido E, Ueda T, Kozono I, Ichihashi Y, Nakahashi A, Onishi M, Yamatsu Y, Kato T, Nishikawa J, Tachibana Y. Peptide-to-Small Molecule: Discovery of Non-Covalent, Active-Site Inhibitors of β-Herpesvirus Proteases. ACS Med Chem Lett 2023; 14:1558-1566. [PMID: 37974946 PMCID: PMC10641906 DOI: 10.1021/acsmedchemlett.3c00359] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/19/2023] Open
Abstract
Viral proteases, the key enzymes that regulate viral replication and assembly, are promising targets for antiviral drug discovery. Herpesvirus proteases are enzymes with no crystallographically confirmed noncovalent active-site binders, owing to their shallow and polar substrate-binding pockets. Here, we applied our previously reported "Peptide-to-Small Molecule" strategy to generate novel inhibitors of β-herpesvirus proteases. Rapid selection with a display technology was used to identify macrocyclic peptide 1 bound to the active site of human cytomegalovirus protease (HCMVPro) with high affinity, and pharmacophore queries were defined based on the results of subsequent intermolecular interaction analyses. Membrane-permeable small molecule 19, designed de novo according to this hypothesis, exhibited enzyme inhibitory activity (IC50 = 10-6 to 10-7 M) against β-herpesvirus proteases, and the design concept was proved by X-ray cocrystal analysis.
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Affiliation(s)
- Shuhei Yoshida
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Yusuke Sako
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Eiji Nikaido
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Taichi Ueda
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Iori Kozono
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Yusuke Ichihashi
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Atsufumi Nakahashi
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Motoyasu Onishi
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Yukiko Yamatsu
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Teruhisa Kato
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Junichi Nishikawa
- PeptiDream
Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Yuki Tachibana
- Pharmaceutical
Research Division, Shionogi Pharmaceutical
Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
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5
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Ye CX, Meggers E. Chiral-at-Ruthenium Catalysts for Nitrene-Mediated Asymmetric C-H Functionalizations. Acc Chem Res 2023; 56:1128-1141. [PMID: 37071874 DOI: 10.1021/acs.accounts.3c00081] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
ConspectusAsymmetric transition metal catalysis is an indispensable tool used both in academia and industry for forging chiral molecules in an enantioselective fashion. Its advancement relies in large part on the design and discovery of new chiral catalysts. In contrast to conventional endeavors of generating chiral transition metal catalysts from carefully tailored chiral ligands, the development of chiral transition metal catalysts containing solely achiral ligands (chiral-at-metal catalysts) has been neglected. This Account presents our recent work on the synthesis and catalytic applications of a new class of C2-symmetric chiral-at-ruthenium catalysts. These octahedral ruthenium(II) complexes are constructed from two achiral bidentate N-(2-pyridyl)-substituted N-heterocyclic carbene (PyNHC) ligands and two monodentate acetonitriles, and the dicationic complexes are typically complemented with two hexafluorophosphate anions. The chirality of these complexes originates from the helical cis-arrangement of the bidentate ligands, thereby generating a stereogenic metal center as the exclusive stereocenter in these complexes. The strong σ donor and π acceptor properties of the PyNHC ligands provide a strong ligand field that ensures a high constitutional and configurational inertness of the helical Ru(PyNHC)2 core, while at the same time, the trans-effect exerted by the σ-donating NHC ligands results in high lability of the MeCN ligands and, therefore, provides high catalytic activity. As a result, this chiral-at-ruthenium catalyst scaffold combines formidable structural robustness with high catalytic activity in a unique fashion. Asymmetric nitrene C-H insertion constitutes an efficient strategy for accessing chiral amines. The direct conversion of C(sp3)-H bonds into amine functionality circumvents the need for using functionalized starting materials. Our C2-symmetric chiral-at-ruthenium complexes display exceptionally high catalytic activity and excellent stereocontrol for various asymmetric nitrene C(sp3)-H insertion reactions. The ruthenium nitrene species can be generated from nitrene precursors, such as organic azides and hydroxylamine derivatives, which undergo ring-closing C-H aminations to afford chiral cyclic pyrrolidines, ureas, and carbamates in high yields and with excellent enantioselectivities at low catalyst loadings. Mechanistically, the turnover-determining C-H insertion is proposed to proceed in a concerted or stepwise fashion, depending on the nature of intermediate ruthenium nitrenes (singlet or triplet). Computational studies revealed that the stereocontrol originates from a better steric fit in combination with favorable catalyst/substrate π-π stacking effects for aminations at benzylic C-H bonds. In addition, we also present our research for exploring novel reaction patterns and reactivities of intermediate transition metal nitrenes. First, we discovered a novel chiral-at-ruthenium-catalyzed 1,3-migratory nitrene C(sp3)-H insertion to convert azanyl esters into nonracemic α-amino acids. Second, we found a chiral-at-ruthenium-catalyzed intramolecular C(sp3)-H oxygenation, thereby allowing for the construction of chiral cyclic carbonates and lactones via nitrene chemistry. We expect that our research program on catalyst development and reaction discovery will inspire the creation of novel types of chiral-at-metal catalysts and drive the development of new applications for nitrene-mediated asymmetric C-H functionalization reactions.
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Affiliation(s)
- Chen-Xi Ye
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein Straße 4, 35043 Marburg, Germany
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein Straße 4, 35043 Marburg, Germany
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6
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Wei J, Zhang J, Cheng JK, Xiang SH, Tan B. Modular enantioselective access to β-amino amides by Brønsted acid-catalysed multicomponent reactions. Nat Chem 2023; 15:647-657. [PMID: 37055574 DOI: 10.1038/s41557-023-01179-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 03/13/2023] [Indexed: 04/15/2023]
Abstract
β-Amino acids are structural motifs widely found in therapeutic natural products, novel biomimetic polymers and peptidomimetics. As a convergent method, the synthesis of stereoenriched β-amino amides through the asymmetric Mannich reaction requires specialized amide substrates or a metal catalyst for enolate formation. By a redesign of the Ugi reaction, a conceptually different solution to prepare chiral β-amino amides was established using ambiphilic ynamides as two-carbon synthons. The modulation of ynamides or oxygen nucleophiles concisely furnished three classes of β-amino amides with generally good efficiency as well as excellent chemo- and stereo-control. The utility is verified in the preparation of over 100 desired products that bear one or two contiguous carbon stereocentres, including those that directly incorporate drug molecules. This advance also provides a synthetic shortcut to other valuable structures. The amino amides could be elaborated into β-amino acids, anti-vicinal diamines, γ-amino alcohols and β-lactams or undergo transamidation with amino acids and amine-containing pharmaceuticals.
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Affiliation(s)
- Jun Wei
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jian Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jun Kee Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China.
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China.
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China.
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7
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Hu K, Onintsoa Diarimalala R, Yao C, Li H, Wei Y. EV-A71 Mechanism of Entry: Receptors/Co-Receptors, Related Pathways and Inhibitors. Viruses 2023; 15:v15030785. [PMID: 36992493 PMCID: PMC10051052 DOI: 10.3390/v15030785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/08/2023] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
Enterovirus A71, a non-enveloped single-stranded (+) RNA virus, enters host cells through three stages: attachment, endocytosis and uncoating. In recent years, receptors/co-receptors anchored on the host cell membrane and involved in this process have been continuously identified. Among these, hSCARB-2 was the first receptor revealed to specifically bind to a definite site of the EV-A71 viral capsid and plays an indispensable role during viral entry. It actually acts as the main receptor due to its ability to recognize all EV-A71 strains. In addition, PSGL-1 is the second EV-A71 receptor discovered. Unlike hSCARB-2, PSGL-1 binding is strain-specific; only 20% of EV-A71 strains isolated to date are able to recognize and bind it. Some other receptors, such as sialylated glycan, Anx 2, HS, HSP90, vimentin, nucleolin and fibronectin, were discovered successively and considered as "co-receptors" because, without hSCARB-2 or PSGL-1, they are not able to mediate entry. For cypA, prohibitin and hWARS, whether they belong to the category of receptors or of co-receptors still needs further investigation. In fact, they have shown to exhibit an hSCARB-2-independent entry. All this information has gradually enriched our knowledge of EV-A71's early stages of infection. In addition to the availability of receptors/co-receptors for EV-A71 on host cells, the complex interaction between the virus and host proteins and various intracellular signaling pathways that are intricately connected to each other is critical for a successful EV-A71 invasion and for escaping the attack of the immune system. However, a lot remains unknown about the EV-A71 entry process. Nevertheless, researchers have been continuously interested in developing EV-A71 entry inhibitors, as this study area offers a large number of targets. To date, important progress has been made toward the development of several inhibitors targeting: receptors/co-receptors, including their soluble forms and chemically designed compounds; virus capsids, such as capsid inhibitors designed on the VP1 capsid; compounds potentially interfering with related signaling pathways, such as MAPK-, IFN- and ATR-inhibitors; and other strategies, such as siRNA and monoclonal antibodies targeting entry. The present review summarizes these latest studies, which are undoubtedly of great significance in developing a novel therapeutic approach against EV-A71.
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Affiliation(s)
- Kanghong Hu
- Sino-German Biomedical Center, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Rominah Onintsoa Diarimalala
- Sino-German Biomedical Center, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Chenguang Yao
- Sino-German Biomedical Center, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Hanluo Li
- Sino-German Biomedical Center, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Yanhong Wei
- Sino-German Biomedical Center, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
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8
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Qiao J, Wang S, Liu X, Feng X. Enantioselective [3+2] Cycloaddition of Donor-Acceptor Aziridines and Imines to Construct 2,5-trans-Imidazolidines. Chemistry 2023; 29:e202203757. [PMID: 36602265 DOI: 10.1002/chem.202203757] [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: 12/01/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
An enantioselective [3+2] cycloaddition of donor-acceptor aziridines with N-aryl protected imines was developed with a Ni(ClO4 )2 ⋅ 6H2 O/N,N'-dioxide catalyst system, providing a broad range of chiral trans-substituted imidazolidine compounds with good yields and excellent enantioselectivities (up to 99 % yield, up to 98 % ee). Control experiments indicated that the products could offer excellent diastereoselectivities with the control of chiral Ni(II)-N,N'-dioxide complex and the interaction of the substrates. The possible catalytic process was proposed to rationalize the stereocontrol.
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Affiliation(s)
- Jianglin Qiao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Shiyu Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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9
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Lamboley S, Vuichoud B, de Saint Laumer JY, Herrmann A. Release of Volatile Cyclopentanone Derivatives from Imidazolidin-4-One Profragrances in a Fabric Softener Application. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010382. [PMID: 36615574 PMCID: PMC9822342 DOI: 10.3390/molecules28010382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023]
Abstract
Imidazolidin-4-ones were investigated as hydrolytically cleavable profragrances to increase the long-lastingness of perfume perception in a fabric softener application. The reaction of different amino acid amides with 2-alkyl- or 2-alkenylcyclopentanones as the model fragrances to be released afforded the corresponding bi- or tricyclic imidazolidin-4-ones as mixtures of diastereoisomers, which were separated by column chromatography. In polar solution, the different stereoisomers equilibrated under thermodynamic conditions to form mixtures with constant isomeric distributions, as shown by NMR spectroscopy. Dynamic headspace analysis on dry cotton demonstrated the controlled fragrance release from the precursors in practical application. Under non-equilibrium conditions (continuous evaporation of the fragrance) and depending on the structure and stereochemistry of the profragrances, the recorded headspace concentrations of the fragrance released from the precursors increased by a factor of 2 up to 100 with respect to the unmodified reference. Prolinamide-based precursors released the highest amount of fragrance and were thus found to be particularly suitable for prolonging the evaporation of cyclopentanone-derived fragrances on a dry cotton surface.
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10
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Huang J, Wang J, Song G, Hu C, Xu Z, Chen Z, Xu C, Yang D. Antiproliferative Evaluation of Novel 4-Imidazolidinone Derivatives as Anticancer Agent Which Triggers ROS-Dependent Apoptosis in Colorectal Cancer Cell. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248844. [PMID: 36557977 PMCID: PMC9783213 DOI: 10.3390/molecules27248844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022]
Abstract
Colorectal cancer (CRC) is one of the most common causes of cancer-related death worldwide, and more therapies are needed to treat CRC. To discover novel CRC chemotherapeutic molecules, we used a series of previously synthesized novel imidazolidin-4-one derivatives to study their anticancer role in several cancer cell lines. Among these compounds, compound 9r exhibited the best anticancer activity in CRC cell lines HCT116 and SW620. We further investigated the anticancer molecular mechanism of compound 9r. We found that compound 9r induced mitochondrial pathway apoptosis in HCT116 and SW620 cells by inducing reactive oxygen species (ROS) production. Moreover, the elevated ROS generation activated the c-Jun N-terminal kinase (JNK) pathway, which further accelerated apoptosis. N-acetylcysteine (NAC), an antioxidant reagent, suppressed compound 9r-induced ROS production, JNK pathway activation, and apoptosis. Collectively, this research synthesized a series of imidazolidin-4-one derivatives, evaluated their anticancer activity, and explored the molecular mechanism of compound 9r-induced apoptosis in CRC cells. The present results suggest that compound 9r has a potential therapeutic role in CRC. Hence, it deserves further exploration as a lead compound for CRC treatment.
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Affiliation(s)
- Jiuhong Huang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
- Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China
| | - Juanli Wang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Guiting Song
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Chunsheng Hu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Zhigang Xu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Zhongzhu Chen
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Chuan Xu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
- Department of Oncology, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
- Correspondence: (C.X.); (D.Y.)
| | - Donglin Yang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
- Correspondence: (C.X.); (D.Y.)
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11
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Genus Smenospongia: Untapped Treasure of Biometabolites—Biosynthesis, Synthesis, and Bioactivities. Molecules 2022; 27:molecules27185969. [PMID: 36144705 PMCID: PMC9501515 DOI: 10.3390/molecules27185969] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/10/2022] [Accepted: 09/10/2022] [Indexed: 11/16/2022] Open
Abstract
Marine sponges continue to attract remarkable attention as one of the richest pools of bioactive metabolites in the marine environment. The genus Smenospongia (order Dictyoceratida, family Thorectidae) sponges can produce diverse classes of metabolites with unique and unusual chemical skeletons, including terpenoids (sesqui-, di-, and sesterterpenoids), indole alkaloids, aplysinopsins, bisspiroimidazolidinones, chromenes, γ-pyrones, phenyl alkenes, naphthoquinones, and polyketides that possessed diversified bioactivities. This review provided an overview of the reported metabolites from Smenospongia sponges, including their biosynthesis, synthesis, and bioactivities in the period from 1980 to June 2022. The structural characteristics and diverse bioactivities of these metabolites could attract a great deal of attention from natural-product chemists and pharmaceuticals seeking to develop these metabolites into medicine for the treatment and prevention of certain health concerns.
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De S, Aamna B, Sahu R, Parida S, Behera SK, Dan AK. Seeking heterocyclic scaffolds as antivirals against dengue virus. Eur J Med Chem 2022; 240:114576. [PMID: 35816877 PMCID: PMC9250831 DOI: 10.1016/j.ejmech.2022.114576] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 12/20/2022]
Abstract
Dengue is one of the most typical viral infection categorized in the Neglected Tropical Diseases (NTDs). It is transmitted via the female Aedes aegypti mosquito to humans and majorly puts risk to the lives of more than half of the world. Recent advancements in medicinal chemistry have led to the design and development of numerous potential heterocyclic scaffolds as antiviral drug candidates for the inhibition of the dengue virus (DENV). Thus, in this review, we have discussed the significance of inhibitory and antiviral activities of nitrogen, oxygen, and mixed (nitrogen-sulfur and nitrogen-oxygen) heterocyclic scaffolds that are published in the last seven years (2016–2022). Furthermore, we have also discussed the probable mechanisms of action and the diverse structure-activity relationships (SARs) of the heterocyclic scaffolds. In addition, this review has elaborately outlined the mechanism of viral infection and the life cycle of DENV in the host cells. The wide set of heterocycles and their SARs will aid in the development of pharmaceuticals that will allow the researchers to synthesize the promising anti-dengue drug candidate in the future.
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Methods for substitution of the thioxo group with the oxo group in imidazolidine-2-thione derivatives. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3488-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Mao C, Cao Z, Fu B, Wang S, Chen H, Xia C, Hu X, Huang X, Qin C. Synthesis of 5-arylidene-3-(pyridin-4-yl)-2-thio-imidazolidinone derivatives with the end of flexible chain modified with aryl groups under microwave. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2047727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Chongyang Mao
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Zhen Cao
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Boqiao Fu
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Shengcheng Wang
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Haowei Chen
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Caifen Xia
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Xinliang Hu
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
| | - Xinyuan Huang
- College of Life Science and Technology, Hubei Engineering University, Xiaogan, Hubei, China
| | - Caiqin Qin
- Institute of Biomedical Materials Industry Technology, Hubei Co-Innovation Center for Utilization of Biomass Waste, College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, China
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Horsten T, Alegbejo Price TO, Van Meervelt L, Emery FDS, Dehaen W. 2-Imidazolidinone benzofurans as unexpected outcome of the Lewis acid mediated Nenitzescu reaction. NEW J CHEM 2022. [DOI: 10.1039/d1nj04965h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Herein, a metal-free methodology towards 2-imidazolidinone benzofurans via piperazinone enaminoesters addition onto quinones and subsequent rearrangement has been disclosed.
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Affiliation(s)
- Tomas Horsten
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Temitayo Omowumi Alegbejo Price
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences at Ribeirao Preto of the University of Sao Paulo, Ribeirao Preto, SP, 14040-903, Brazil
| | - Luc Van Meervelt
- Biochemistry, Molecular and Structural Biology Section, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Flavio da Silva Emery
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences at Ribeirao Preto of the University of Sao Paulo, Ribeirao Preto, SP, 14040-903, Brazil
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
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Kong Y, Mao C, Li S, Xie Y, Zhang XL, Fu B. A Novel Imidazolinone Derivative with 5-arylidene and 2- Substituted Mercapto Group as Potent Anti-Hepatitis C Virus Compound. Chem Biodivers 2021; 19:e202100602. [PMID: 34927353 DOI: 10.1002/cbdv.202100602] [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: 07/28/2021] [Accepted: 12/17/2021] [Indexed: 11/11/2022]
Abstract
Here six novel imidazolinone derivatives have been synthesized and the compound 4b containing 5- para -methoxy-phenylidene and 2-thioalkylation terminal substitution with 3'-cyano-2',6'-dimethyl-phenyl showed the best anti-HCV activity and the lowest cytotoxicity. Selectivity index (SI = CC 50 /IC 50 ) for the 4b was determined as 36, indicating that compound 4b was highly selective towards HCV.
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Affiliation(s)
- Ying Kong
- Wuhan University, School of Basic Medicinal Sciences, Wuhan 430071, Hubei, P. R. China, 432000, Wuhan, CHINA
| | - Chongyang Mao
- Hubei Engineering University, College of Chemistry and Materials Science, No. 272 Jiaotong Avenue, 432000, Xiaogan, CHINA
| | - Shu Li
- Wuhan University, School of Basic Medicai l, uhan 430071, Hubei, P. R. China,, Wuhan, CHINA
| | - Yan Xie
- Wuhan University, School of Basic Midcal Sciences, Wuhan 430071, Hubei, P. R. China, 432000, Wuhan, CHINA
| | - Xiao-Lian Zhang
- Wuhan University, School of Basical Medicne, Wuhan 430071, Hubei, P. R. China, Wuhan, CHINA
| | - Boqiao Fu
- Hubei Engineering University, College of Chemistry and Materials Science, No.272, Jiaotong Avenue, 432000, Xiaogan, CHINA
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Novel capto-dative (Z,E)-2-(alkylthio)alk-2-en-4-ynals: synthesis and heterocyclization. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Wu Z, Graf FE, Hirsch HH. Antivirals against human polyomaviruses: Leaving no stone unturned. Rev Med Virol 2021; 31:e2220. [PMID: 33729628 DOI: 10.1002/rmv.2220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/20/2022]
Abstract
Human polyomaviruses (HPyVs) encompass more than 10 species infecting 30%-90% of the human population without significant illness. Proven HPyV diseases with documented histopathology affect primarily immunocompromised hosts with manifestations in brain, skin and renourinary tract such as polyomavirus-associated nephropathy (PyVAN), polyomavirus-associated haemorrhagic cystitis (PyVHC), polyomavirus-associated urothelial cancer (PyVUC), progressive multifocal leukoencephalopathy (PML), Merkel cell carcinoma (MCC), Trichodysplasia spinulosa (TS) and pruritic hyperproliferative keratinopathy. Although virus-specific immune control is the eventual goal of therapy and lasting cure, antiviral treatments are urgently needed in order to reduce or prevent HPyV diseases and thereby bridging the time needed to establish virus-specific immunity. However, the small dsDNA genome of only 5 kb of the non-enveloped HPyVs only encodes 5-7 viral proteins. Thus, HPyV replication relies heavily on host cell factors, thereby limiting both, number and type of specific virus-encoded antiviral targets. Lack of cost-effective high-throughput screening systems and relevant small animal models complicates the preclinical development. Current clinical studies are limited by small case numbers, poorly efficacious compounds and absence of proper randomized trial design. Here, we review preclinical and clinical studies that evaluated small molecules with presumed antiviral activity against HPyVs and provide an outlook regarding potential new antiviral strategies.
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Affiliation(s)
- Zongsong Wu
- Transplantation & Clinical Virology, Department Biomedicine, University of Basel, Basel, Switzerland
| | - Fabrice E Graf
- Transplantation & Clinical Virology, Department Biomedicine, University of Basel, Basel, Switzerland
| | - Hans H Hirsch
- Transplantation & Clinical Virology, Department Biomedicine, University of Basel, Basel, Switzerland.,Clinical Virology, Laboratory Medicine, University Hospital Basel, Basel, Switzerland.,Infectious Diseases & Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
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Stereoselective synthesis of PEGylated azoles via 1,3-dipolar cycloaddition. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Magnesium acetate – an effective electrophilic activator of the carbonyl group in transesterification of dialkylaziridine dicarboxylates. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02744-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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van Leest NP, van Vliet KM, de Bruin B. Chiral-at-Ruthenium Catalyst Does the Job: Access to Enantioenriched 2-Imidazolidinones. Chem 2020. [DOI: 10.1016/j.chempr.2020.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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23
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Bhowmick S, Alissa SA, Wabaidur SM, Chikhale RV, Islam MA. Structure-guided screening of chemical database to identify NS3-NS2B inhibitors for effective therapeutic application in dengue infection. J Mol Recognit 2020; 33:e2838. [PMID: 32060998 DOI: 10.1002/jmr.2838] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 01/01/2020] [Accepted: 01/13/2020] [Indexed: 12/14/2022]
Abstract
Dengue infection is the most common arthropod-borne disease caused by dengue viruses, predominantly affecting millions of human beings annually. To find out promising chemical entities for therapeutic application in Dengue, in the current research, a multi-step virtual screening effort was conceived to screen out the entire "screening library" of the Asinex database. Initially, through "Lipinski rule of five" filtration criterion almost 0.6 million compounds were collected and docked with NS3-NS2B protein. Thereby, the chemical space was reduced to about 3500 compounds through the analysis of binding affinity obtained from molecular docking study in AutoDock Vina. Further, the "Virtual Screening Workflow" (VSW) utility of Schrödinger suite was used, which follows a stepwise multiple docking programs such as - high-throughput virtual screening (HTVS), standard precision (SP), and extra precision (XP) docking, and in postprocessing analysis the MM-GBSA based free binding energy calculation. Finally, five potent molecules were proposed as potential inhibitors for the dengue NS3-NS2B protein based on the investigation of molecular interactions map and protein-ligand fingerprint analyses. Different pharmacokinetics and drug-likeness parameters were also checked, which favour the potentiality of selected molecules for being drug-like candidates. The molecular dynamics (MD) simulation analyses of protein-ligand complexes were explained that NS3-NS2B bound with proposed molecules quite stable in dynamic states as observed from the root means square deviation (RMSD) and root means square fluctuation (RMSF) parameters. The binding free energy was calculated using MM-GBSA method from the MD simulation trajectories revealed that all proposed molecules possess such a strong binding affinity towards the dengue NS3-NS2B protein. Therefore, proposed molecules may be potential chemical components for effective inhibition of dengue NS3-NS2B protein subjected to experimental validation.
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Affiliation(s)
- Shovonlal Bhowmick
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Siham A Alissa
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | | | - Md Ataul Islam
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.,School of Health Sciences, University of Kwazulu-Natal, Westville Campus, Durban, South Africa.,Department of Chemical Pathology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Stanek F, Pawlowski R, Morawska P, Bujok R, Stodulski M. Dehydrogenation and α-functionalization of secondary amines by visible-light-mediated catalysis. Org Biomol Chem 2020; 18:2103-2112. [DOI: 10.1039/c9ob02699a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A visible-light-mediated process for dehydrogenation of amines has been described. The given protocol showed a broad substrate scope, mild reaction conditions and excellent results without the requirement of tedious purification.
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Affiliation(s)
- Filip Stanek
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Robert Pawlowski
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | | | - Robert Bujok
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Maciej Stodulski
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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