1
|
Higashida K, Smaïl V, Nagae H, Carpentier JF, Mashima K. Nickel-Catalyzed Asymmetric Allylic Alkylation of β-Dicarbonyl Compounds via C–C Bond Activation of 2-Allylated Cyclic 1,3-Diketones. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kosuke Higashida
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Valentin Smaïl
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Haruki Nagae
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Jean-Francois Carpentier
- Institut des Sciences Chimiques de Rennes, Université de Rennes, CNRS, F-35042 Rennes Cedex, France
| | - Kazushi Mashima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| |
Collapse
|
2
|
Zhang C, Zhang XQ, Nie Y, Wang C, Xu T, Zhang J, Bai L, Feng C, Wang Y. Gold-catalyzed formal (3 + 2) and (4 + 2) cycloaddition reactions using propiolates: assembly of 2,3-dihydrofurans and 3,4-dihydropyrans via a multistep cascade process. Org Chem Front 2022. [DOI: 10.1039/d2qo01084d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A gold-catalyzed formal dipolar cycloaddition reaction was developed using polarized alkynes as dipolarophiles and butenediol or pentenediol derivatives as formal dipoles. Silyl groups were used to solve the selectivity issue of unsymmetrical diols.
Collapse
Affiliation(s)
- Congdi Zhang
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| | - Xiao-Qian Zhang
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| | - Yu Nie
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| | - Chao Wang
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| | - Tianyi Xu
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| | - Junjie Zhang
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| | - Lu Bai
- Instrumental Analysis Center, Xi'an Jiaotong University, No.28, West Xianning Road, Xi'an, Shaanxi, 710049, P.R. China
| | - Chao Feng
- Instrumental Analysis Center, Xi'an Jiaotong University, No.28, West Xianning Road, Xi'an, Shaanxi, 710049, P.R. China
| | - Youliang Wang
- School of Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, China
| |
Collapse
|
3
|
Zhang G, Alshreimi AS, Alonso L, Antar A, Yu H, Islam SM, Anderson LL. Nitrone and Alkyne Cascade Reactions for Regio‐ and Diastereoselective 1‐Pyrroline Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Guanqun Zhang
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Abdullah S. Alshreimi
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Laura Alonso
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Alan Antar
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Hsien‐Cheng Yu
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Shahidul M. Islam
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Laura L. Anderson
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| |
Collapse
|
4
|
Zhang G, Alshreimi AS, Alonso L, Antar A, Yu HC, Islam SM, Anderson LL. Nitrone and Alkyne Cascade Reactions for Regio- and Diastereoselective 1-Pyrroline Synthesis. Angew Chem Int Ed Engl 2021; 60:13089-13097. [PMID: 33763941 DOI: 10.1002/anie.202101511] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/06/2021] [Indexed: 12/22/2022]
Abstract
The synthesis of 1-pyrrolines from N-alkenylnitrones and alkynes has been explored as a retrosynthetic alternative to traditional approaches. These cascade reactions are formal [4+1] cycloadditions that proceed through a proposed dipolar cycloaddition and N-alkenylisoxazoline [3,3']-sigmatropic rearrangement. A variety of cyclic alkynes and terminal alkynes have been shown to undergo the transformation with N-alkenylnitrones under mild conditions to provide the corresponding spirocyclic and densely substituted 1-pyrrolines with high regio- and diastereoselectivity. Mechanistic studies provide insight into the balance of steric and electronic effects that promote the cascade process and control the diastereo- and regioisomeric preferences of the 1-pyrroline products. Diastereoselective derivatization of the 1-pyrrolines prepared by the cascade reaction demonstrate the divergent synthetic utility of the new method.
Collapse
Affiliation(s)
- Guanqun Zhang
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Abdullah S Alshreimi
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Laura Alonso
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Alan Antar
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Hsien-Cheng Yu
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Shahidul M Islam
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Laura L Anderson
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| |
Collapse
|
5
|
Li QZ, Jia ZQ, Chen L, Zhang X, Leng HJ, Zeng R, Liu YQ, Zou WL, Li JL. Construction of a Benzo[ b]azepine Skeleton through Decarboxylative Ylide [6+1] Annulations with Modified Vinyl Benzoxazinanones. Org Lett 2021; 23:814-818. [PMID: 33501832 DOI: 10.1021/acs.orglett.0c04041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A Lewis acid-promoted [6+1] annulation between sulfur ylides and modified vinyl benzoxazinanones was described. In this reaction, the newly designed vinyl benzoxazinanones could serve as a novel six-atom synthon, and the key to success is the installation of an electron-withdrawing group on the alkene moiety of the benzoxazinanones. A broad range of substrates are compatible with this mild reaction system, thereby providing a facile and practical approach for constructing a benzo[b]azepine skeleton.
Collapse
Affiliation(s)
- Qing-Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Zhi-Qiang Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Lin Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Xiang Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Hai-Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Rong Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Yan-Qing Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Wen-Lin Zou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| | - Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, China
| |
Collapse
|
6
|
Trost BM, Kalnmals CA. Annulative Allylic Alkylation Reactions between Dual Electrophiles and Dual Nucleophiles: Applications in Complex Molecule Synthesis. Chemistry 2019; 26:1906-1921. [DOI: 10.1002/chem.201903961] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/29/2019] [Indexed: 01/14/2023]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry Stanford University 333 Campus Drive Stanford CA 94305 USA
| | | |
Collapse
|
7
|
Naidu Kalla RM, Karunakaran RS, Balaji M, Kim I. Catalyst‐Free Synthesis of Xanthene and Pyrimidine‐Fused Heterocyclic Derivatives at Water‐Ethanol Medium and Their Antioxidant Properties. ChemistrySelect 2019. [DOI: 10.1002/slct.201803449] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Reddi Mohan Naidu Kalla
- Department of Polymer Science and EngineeringPusan National University Busan Republic of Korea
| | | | - Meriga Balaji
- Department of BiochemistrySri Venkateswara University Tirupati 517502 India
| | - Il Kim
- Department of Polymer Science and EngineeringPusan National University Busan Republic of Korea
| |
Collapse
|
8
|
Li SW, Kang Q. Catalytic asymmetric synthesis of diphenylbutazone analogues. Chem Commun (Camb) 2018; 54:10479-10482. [DOI: 10.1039/c8cc06426a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric Michael addition of diphenylbutazone and its analogues to α,β-unsaturated 2-acyl imidazoles has been developed with a chiral-at-metal Rh(iii) complex as a catalyst.
Collapse
Affiliation(s)
- Shi-Wu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| |
Collapse
|
9
|
Murakata M, Ikeda T. Stereoselective synthesis of the viridiofungin analogue NA808 from a chiral tetrahydrofuran-carboxylic acid. Org Biomol Chem 2017; 15:6632-6639. [PMID: 28752880 DOI: 10.1039/c7ob01608e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The viridiofungin analogue NA808 was synthesized by the stereoselective Ireland-Claisen rearrangement of dienylmethyl ester, regioselective bromolactonization of β-divinylpropanoic acid and retro-bromolactonization.
Collapse
Affiliation(s)
- Masatoshi Murakata
- API Process Development Department, Chugai Pharmaceutical Co., Ltd., 5-5-1 Ukima, Kita-Ku, Tokyo 115-8543, Japan.
| | | |
Collapse
|
10
|
Terent'ev AO, Vil' VA, Gorlov ES, Rusina ON, Korlyukov AA, Nikishin GI, Adam W. Selective Oxidative Coupling of 3H-Pyrazol-3-ones, Isoxazol-5(2H)-ones, Pyrazolidine-3,5-diones, and Barbituric Acids with Malonyl Peroxides: An Effective C-O Functionalization. ChemistrySelect 2017. [DOI: 10.1002/slct.201700720] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alexander O. Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
- All-Russian Research Institute for Phytopathology; B. Vyazyomy Moscow Region 143050 Russian Federation
| | - Vera A. Vil'
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
- All-Russian Research Institute for Phytopathology; B. Vyazyomy Moscow Region 143050 Russian Federation
| | - Evgenii S. Gorlov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
| | - Olga N. Rusina
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square Moscow 125047 Russian Federation
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova ul Moscow 119991 Russian Federation
- Pirogov Russian National Research Medical University; Ostrovitianov str. 1 Moscow 117997 Russian Federation
| | - Gennady I. Nikishin
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russian Federation
| | - Waldemar Adam
- Institute of Organic Chemistry; University of Würzburg; Am Hubland, D- 97074 Würzburg Germany
- Department of Chemistry, Faculty of Natural Sciences; University of Puerto Rico; Rio Piedras Puerto Rico 00931 USA
| |
Collapse
|
11
|
Al-Majid AM, Islam MS, Barakat A, Al-Qahtani NJ, Yousuf S, Iqbal Choudhary M. Tandem Knoevenagel–Michael reactions in aqueous diethylamine medium: A greener and efficient approach toward bis-dimedone derivatives. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2014.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
|
12
|
Cazorla C, Billamboz M, Chevrin-Villette C, Hapiot F, Monflier E, Len C. Conjugated Dienyl Derivatives by Green Bisallylic Substitution: Synthetic and Mechanistic Insight. ChemCatChem 2016. [DOI: 10.1002/cctc.201600343] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Clément Cazorla
- Sorbonne Universités, Université de Technologie de Compiègne; Centre de Recherches Royallieu, CS 60319 F-60203 Compiègne France), Fax
| | - Muriel Billamboz
- Ecole Supérieure de Chimie Organique et Minérale; 1 allée du Réseau Jean-Marie Buckmaster F-60200 Compiègne France
| | - Carole Chevrin-Villette
- Ecole Supérieure de Chimie Organique et Minérale; 1 allée du Réseau Jean-Marie Buckmaster F-60200 Compiègne France
| | - Frédéric Hapiot
- Univ. Artois, CNRS, Centrale Lille, ENSCL, Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); F-62300 Lens France
| | - Eric Monflier
- Univ. Artois, CNRS, Centrale Lille, ENSCL, Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); F-62300 Lens France
| | - Christophe Len
- Sorbonne Universités, Université de Technologie de Compiègne; Centre de Recherches Royallieu, CS 60319 F-60203 Compiègne France), Fax
| |
Collapse
|
13
|
Yoshimatsu M, Tanaka M, Fujimura Y, Ito Y, Goto Y, Kobayashi Y, Wasada H, Hatae N, Tanabe G, Muraoka O. Synthesis of Azepines via a [6 + 1] Annulation of Ynenitriles with Reformatsky Reagents. J Org Chem 2015; 80:9480-94. [DOI: 10.1021/acs.joc.5b01397] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Noriyuki Hatae
- School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Genzoh Tanabe
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Osamu Muraoka
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| |
Collapse
|
14
|
Singh V, Das B, Jarhad DB, Mobin SM. Molecular diversity from aromatics. Cycloaddition of cyclohexa-2,4-dienones, ring-closing metathesis and sigmatropic shifts: a general and stereoselective route to novel spirocarbocyclics. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Kaladevi S, Sridhar J, Abhilashamole B, Muthusubramanian S, Bhuvanesh N. Synthesis of substituted 1,3-diaryl-6,7-dihydro-1H-indol-4(5H)-ones from 1-aryl-2-arylaminoethanones. RSC Adv 2014. [DOI: 10.1039/c4ra03975k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
16
|
Bartlett MJ, Turner CA, Harvey JE. Pd-Catalyzed Allylic Alkylation Cascade with Dihydropyrans: Regioselective Synthesis of Furo[3,2-c]pyrans. Org Lett 2013; 15:2430-3. [DOI: 10.1021/ol400902d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Mark J. Bartlett
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6140, New Zealand
| | - Claire A. Turner
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6140, New Zealand
| | - Joanne E. Harvey
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6140, New Zealand
| |
Collapse
|
17
|
Clavier H, Lepronier A, Bengobesse-Mintsa N, Gatineau D, Pellissier H, Giordano L, Tenaglia A, Buono G. Palladium-Mediated [2+1] Cycloaddition of Norbornene Derivatives with Ynamides. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200903] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|