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Nisar M, Gondal HY, Cheema ZM, Yousaf S, Nadeem H. New azole-derived hemiaminal ethers as promising acetylcholinesterase inhibitors: synthesis, X-ray structures, in vitro and in silico studies. J Biomol Struct Dyn 2023; 41:15535-15548. [PMID: 37021341 DOI: 10.1080/07391102.2023.2190805] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/05/2023] [Indexed: 04/07/2023]
Abstract
A new class of azole-derived hemiaminal ethers is designed as acetylcholinesterase (AChE) inhibitors. The synthesized compounds exhibited remarkable inhibitory activity against acetylcholine. Chiral hemiaminals (3d and 3i) based on (R)-menthoxymethyl group exhibit excellent inhibition with IC50 values of 0.983 ± 1.41 and 1.154 ± 0.89 µM. Similarly, butoxymethyl derivatives 3a, 3f and 3h, also showed promising inhibition comparable to the standard drug, Donepezil. In silico studies were performed to understand the mode of interactions with the target proteins, where menthoxymethyl azoles 3d and 3i demonstrated the highest docking scores. Molecular dynamics simulations displayed the stable ligand-protein complex of 3i with effective binding interactions. The bioavailability and pharmacokinetic parameterssupported the suitability of these small molecule inhibitors to develop cost-effective drug leads for Alzheimer's disease (AD). MTT assay substantiated the non-cytotoxic nature of the compounds. The synthesized compounds are extensively characterized by 1H NMR, 13C NMR and mass spectral data and SC-XRD.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Muhammad Nisar
- Institute of Chemistry, University of Sargodha, Sargodha, Pakistan
| | | | | | - Sammer Yousaf
- HEJ Research Institute of Chemistry, ICCBS, University of Karachi, Pakistan
| | - Humaira Nadeem
- Department of Pharmaceutical Chemistry, Riphah International University, Islamabad, Pakistan
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2
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Fang Y, Wang M, Hao W, Meng Y, Yu W, Chang J. Transition‐Metal‐Free N‐Functionalization of Benzimidazoles and Related Azaheterocycles with α‐Acyloxy Sulfides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Abstract
Abstract
N-Acyl-N,O-acetals are key components in a variety of bioactive natural products. Furthermore, they are synthetic equivalents of unstable N-acylimines and building blocks in organic synthesis. Tremendous efforts have been made in the synthesis of such acetals, these methods can be broadly classified into two categories: electrochemical oxidation and chemical methods. Herein, we will summarize progress in the preparation of these subunits, which may aid the development of new synthetic methods for N-acyl-N,O-acetals.1 Introduction2 Synthetic Methods for Preparing N-Acyl-N,O-acetals2.1 Electrochemical Oxidation2.2 Chemical Methods2.3 Other Methods3 Summary and Outlook
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Affiliation(s)
- Xiao-Yan Ma
- School of Chemical Engineering, Sichuan University of Science & Engineering
| | - Fu-Qiang Shao
- Department of Nuclear Medicine, Zigong First People's Hospital & Zigong Academy of Medical Sciences
| | - Xinjun Hu
- School of Chemical Engineering, Sichuan University of Science & Engineering
- Graphene Institute of Lanzhou University Fangda Carbon, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Lanzhou University
| | - Xingyong Liu
- School of Chemical Engineering, Sichuan University of Science & Engineering
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4
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Othmanm MO, Abdallahi SM, Ewies EF, El-Shazly M, Elemine BO, Hadou A, Moncol J, Lawson AM, Daich A, Othman M. Autotandem Catalysis: Inexpensive and Green Access to Functionalized Ketones by Intermolecular Iron-Catalyzed Amidoalkynylation/Hydration Cascade Reaction via N-Acyliminium Ion Chemistry. Chemistry 2021; 27:15440-15449. [PMID: 34346129 DOI: 10.1002/chem.202102357] [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: 06/30/2021] [Indexed: 11/05/2022]
Abstract
Iron-based catalysts were applied in cascade-type reactions for the synthesis of different carbonyl compounds. The reactions proceeded by a new iron-catalyzed cascade of alkynylation/hydration by using both the σ- and π-Lewis acid properties of iron salts. The alkynylation reactions of several endo and exocyclic acetoxylactams were achieved with three different catalysts including FeCl 3 .6H 2 O, FeCl 3 , and Fe(OTf) 3 showing the efficiency of σ-Lewis acidity of iron (III) salts in catalyzing the alkynylation reaction. We also demonstrated that the reaction sequence could be shortened by the direct use of hydroxylactams, leading to an environmentally friendly protocol, avoiding the need to perform unnecessary lengthy steps. A combination of the hard/soft iron Lewis acid properties was then used to implement an unprecedented tandem intermolecular alkynylation/intramolecular hydration sequence allowing expedient access to a new carbonyl structures from trivial materials.
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Affiliation(s)
- Mohamed Othman Othmanm
- University of le Havre, Unit� de Recherche en Chimie Organique et Macromol�culaire URCOM, 25, Rue Philippe Lebon, BP 540, 76058, Le Havre, FRANCE
| | | | | | | | | | | | - Ján Moncol
- Slovak University of Technology Faculty of Chemical and Food Technology: Slovenska Technicka Univerzita v Bratislave Fakulta chemickej a potravinarskej technologie, Chemistry, SLOVAKIA
| | | | | | - Mohamed Othman
- Universite du Havre, URCOM, 25, Rue Philippe Lebon, BP 540, 76058, Le Havre, FRANCE
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Ohsawa K, Ochiai S, Kubota J, Doi T. Gold-Catalyzed Amide/Carbamate-Linked N,O-Acetal Formation with Bulky Amides and Alcohols. J Org Chem 2020; 86:1281-1291. [DOI: 10.1021/acs.joc.0c02640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kosuke Ohsawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki,
Aoba-ku, Sendai, 980-8578, Japan
| | - Shota Ochiai
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki,
Aoba-ku, Sendai, 980-8578, Japan
| | - Junya Kubota
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki,
Aoba-ku, Sendai, 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki,
Aoba-ku, Sendai, 980-8578, Japan
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6
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Irving C, Floreancig JT, Laulhé S. Amide Synthesis through the In Situ Generation of Chloro- and Imido-Phosphonium Salts. ACS OMEGA 2020; 5:15734-15745. [PMID: 32637849 PMCID: PMC7331200 DOI: 10.1021/acsomega.0c02309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 06/05/2020] [Indexed: 05/05/2023]
Abstract
We describe a methodology for the amidation of carboxylic acids by generating phosphonium salts in situ from N-chlorophthalimide and triphenylphosphine. Aliphatic, benzylic, and aromatic carboxylic acids can be transformed into their amide counter parts using primary and secondary amines. This functional group interconversion is achieved at room temperature in good to excellent yields. Mechanistic work shows the in situ formation of chloro- and imido-phosphonium salts that react as activating agents for carboxylic acids and generate an acyloxy-phosphonium species.
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Xiao-Yan M, Chang-Fei Z, Xinjun H, Wei Z, Yanli L. Brønsted acid catalyzed proto-functionalization of enecarbamates and enamides: A convenient route to N,O-acetals. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Fu Y, Zhang D, Zhang SQ, Liu YX, Guo YY, Wang MX, Gao S, Zhao LX, Ye F. Discovery of N-Aroyl Diketone/Triketone Derivatives as Novel 4-Hydroxyphenylpyruvate Dioxygenase Inhibiting-Based Herbicides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11839-11847. [PMID: 31589436 DOI: 10.1021/acs.jafc.9b01412] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) is an important target site for discovering new bleaching herbicides. To explore novel HPPD inhibitors with excellent herbicidal activity, a series of novel N-aroyl diketone/triketone derivatives were rationally designed by splicing active groups and bioisosterism. Bioassays revealed that most of these derivatives displayed preferable herbicidal activity against Echinochloa crus-galli (EC) at 0.045 mmol/m2 and Abutilon juncea (AJ) at 0.090 mmol/m2. In particular, compound I-f was more potent compared to the commercialized compound mesotrione. Molecular docking indicated that the corresponding active molecules of target compounds and mesotrione shared similar interplay with surrounding residues, which led to a perfect interaction with the active site of Arabidopsis thaliana HPPD.
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Affiliation(s)
- Ying Fu
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Dong Zhang
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Shuai-Qi Zhang
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Yong-Xuan Liu
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - You-Yuan Guo
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Meng-Xia Wang
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Shuang Gao
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Li-Xia Zhao
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
| | - Fei Ye
- Department of Applied Chemistry, College of Science , Northeast Agricultural University , Harbin , Heilongjiang 150030 , People's Republic of China
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Wang J, Cary BP, Beyer PD, Gellman SH, Weix DJ. Ketones from Nickel-Catalyzed Decarboxylative, Non-Symmetric Cross-Electrophile Coupling of Carboxylic Acid Esters. Angew Chem Int Ed Engl 2019; 58:12081-12085. [PMID: 31287943 PMCID: PMC6707838 DOI: 10.1002/anie.201906000] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Indexed: 12/22/2022]
Abstract
Synthesis of the C-C bonds of ketones relies upon one high-availability reagent (carboxylic acids) and one low-availability reagent (organometallic reagents or alkyl iodides). We demonstrate here a ketone synthesis that couples two different carboxylic acid esters, N-hydroxyphthalimide esters and S-2-pyridyl thioesters, to form aryl alkyl and dialkyl ketones in high yields. The keys to this approach are the use of a nickel catalyst with an electron-poor bipyridine or terpyridine ligand, a THF/DMA mixed solvent system, and ZnCl2 to enhance the reactivity of the NHP ester. The resulting reaction can be used to form ketones that have previously been difficult to access, such as hindered tertiary/tertiary ketones with strained rings and ketones with α-heteroatoms. The conditions can be employed in the coupling of complex fragments, including a 20-mer peptide fragment analog of Exendin(9-39) on solid support.
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Affiliation(s)
- Jiang Wang
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Brian P Cary
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Peyton D Beyer
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Samuel H Gellman
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Daniel J Weix
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
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Wang J, Cary BP, Beyer PD, Gellman SH, Weix DJ. Ketones from Nickel‐Catalyzed Decarboxylative, Non‐Symmetric Cross‐Electrophile Coupling of Carboxylic Acid Esters. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906000] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiang Wang
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Brian P. Cary
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Peyton D. Beyer
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Samuel H. Gellman
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Daniel J. Weix
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
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Steemers L, Wijsman L, van Maarseveen JH. Regio‐ and Stereoselective Chan‐Lam‐Evans Enol Esterification of Carboxylic Acids with Alkenylboroxines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800914] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Luuk Steemers
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
| | - Linda Wijsman
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
| | - Jan H. van Maarseveen
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
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12
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Kinens A, Sejejs M, Kamlet AS, Piotrowski DW, Vedejs E, Suna E. Development of a Chiral DMAP Catalyst for the Dynamic Kinetic Resolution of Azole Hemiaminals. J Org Chem 2017; 82:869-886. [DOI: 10.1021/acs.joc.6b02955] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Artis Kinens
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Marcis Sejejs
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
- University of Latvia, Department of Chemistry, Jelgavas 1, LV-1004 Riga, Latvia
| | - Adam S. Kamlet
- Worldwide
Medicinal Chemistry, Pfizer, Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - David W. Piotrowski
- Worldwide
Medicinal Chemistry, Pfizer, Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Edwin Vedejs
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Edgars Suna
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
- University of Latvia, Department of Chemistry, Jelgavas 1, LV-1004 Riga, Latvia
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