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Costantino AR, Charbe N, Duarte Y, Gutiérrez M, Giordano A, Prasher P, Dua K, Mandolesi S, Zacconi FC. Toward the cholinesterase inhibition potential of TADDOL derivatives: Seminal biological and computational studies. Arch Pharm (Weinheim) 2022; 355:e2200142. [PMID: 35892245 DOI: 10.1002/ardp.202200142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/03/2022] [Accepted: 07/11/2022] [Indexed: 11/07/2022]
Abstract
Alzheimer's disease (AD) is a degenerative neurological disease characterized by gradual loss of cognitive skills and memory. The exact pathogenesis involved still remains unrevealed, but several studies indicate the involvement of an array of different enzymes, underlining the multifactorial character of the disease. Inhibition of these enzymes is therefore a powerful approach in the development of AD treatments, with promising candidates, including acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), and monoamine oxidase. Interestingly, AChE is the target of a major pesticide family (organophosphates), with several reports indicating an intersection between the pesticide's activity and AD. In this study, various TADDOL derivatives were synthesized and their in vitro activities as AChE/BuChE inhibitors as well as their antioxidant activities were studied. Molecular modeling studies revealed the capability of TADDOL derivatives to bind to AChE and induce inhibition, especially compounds 2b and 3c furnishing IC50 values of 36.78 ± 8.97 and 59.23 ± 5.31 µM, respectively. Experimental biological activities and molecular modeling studies clearly demonstrate that TADDOL derivatives with specific stereochemistry have an interesting potential for the design of potent AChE inhibitors. The encouraging results for compounds 2b and 3c indicate them as promising scaffolds for selective and potent AChE inhibitors.
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Affiliation(s)
- Andrea R Costantino
- INQUISUR, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Nitin Charbe
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M University, Kingsville, Texas, USA
| | - Yorley Duarte
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Margarita Gutiérrez
- Organic Synthesis Laboratory and Biological Activity (LSO-Act-Bio), Institute of Chemistry and Natural Resources, Universidad de Talca, Talca, Chile
| | - Ady Giordano
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, New South Wales, Australia.,Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, New South Wales, Australia.,Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Sandra Mandolesi
- INQUISUR, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Flavia C Zacconi
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile.,Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.,The Research Center for Nanotechnology and Advanced Materials, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago, Chile
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Winchester WR, Seymour J. Computational and dynamic NMR investigation of 2,2-dimesityl-1,1,1,3,3,3-hexamethyltrisilane. Magn Reson Chem 2020; 58:312-318. [PMID: 31912540 DOI: 10.1002/mrc.4991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/30/2019] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
The structure and rotational barrier for the mesityl-silicon bond of 2,2-dimesityl-1,1,1,3,3,3-hexamethyltrisilane have been investigated by 1 H- and 13 C-variable temperature nuclear magnetic resonance (NMR) as well as by density functional theory structural calculations. The calculations show that the lowest energy structure has C2 symmetry with nonequivalent ortho methyl groups, consistent with the crystal structure and solution NMR. The nonequivalent ortho methyl groups exchange through a Cs transition state with a calculated relative free energy of 11.0 kcal mol-1 . The barrier for this rotation found by dynamic NMR is 13.4 ± 0.2 kcal mol-1 at 298 K.
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Affiliation(s)
| | - Jenna Seymour
- Department of Chemistry, Grand Valley State University, Allendale, MI
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Zhu J, Zhu L, Wu Y, Cheng L, Wang H, Sun X, Shen J, Zhou Y, Ke Y. A novel C 2 symmetric chiral stationary phase with N-[(4-Methylphenyl)sulfonyl]-l-leucine as chiral side chains. J Sep Sci 2020; 43:2338-2348. [PMID: 32216077 DOI: 10.1002/jssc.202000163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 11/09/2022]
Abstract
In this study, a series of chiral stationary phases based on N-[(4-methylphenyl)sulfonyl]-l-leucine amide, whose enantiorecognition property has never been studied, were synthesized. Their enantioseparation abilities were chromatographically evaluated by 67 enantiomers. The chiral stationary phase derived from N-[(4-methylphenyl)sulfonyl]-l-leucine showed much better enantioselectivities than that based on N-(4-methylbenzoyl)-l-leucine amide. The construction of C2 symmetric chiral structure greatly improved the enantiorecognition performance of the stationary phase. The C2 symmetric chiral stationary phase exhibited superior enantioresolutions to other chiral stationary phases for most of the chiral analytes, especially for the chiral analytes with C2 symmetric structures. By comparing the enantioseparations of the enantiomers with similar structures, the importance of hydrogen bond interaction, π-π interaction, and steric hindrance on enantiorecognition was elucidated. The enantiorecognition mechanism of trans-N,N'-(1,2-diphenyl-1,2-ethanediyl)bis-acetamide, which had an excellent separation factor on the C2 symmetric chiral stationary phase, was investigated by 1 H-NMR spectroscopy and 2D 1 H-1 H nuclear overhauser enhancement spectroscopy.
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Affiliation(s)
- Junchen Zhu
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Lunan Zhu
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Yaling Wu
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Lingping Cheng
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Huiying Wang
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Xiaotong Sun
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Jiawei Shen
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Yang Zhou
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Yanxiong Ke
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
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