1
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Liu ZH, Xiao J, Zhai QQ, Tang X, Xu LJ, Zhuang ZY, Wang YW, Peng Y. Intramolecular Ni-catalyzed reductive coupling enables enantiodivergent synthesis of linoxepin. Chem Commun (Camb) 2024; 60:694-697. [PMID: 38105647 DOI: 10.1039/d3cc05312a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
A nickel-catalyzed reductive tandem cyclization of the elaborated β-bromo acetal with a dibenzoxepin scaffold was invented to strategically construct the remaining two rings in linoxepin. The generated diasterodivergent intermediates could be easily converted to both enantiomers of this unique cyclolignan molecule via facile oxidations, thus realizing enantiodivergent total synthesis of linoxepin for the first time.
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Affiliation(s)
- Zi-Hao Liu
- School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, P. R. China.
| | - Jian Xiao
- School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, P. R. China.
| | - Qian-Qian Zhai
- School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, P. R. China.
| | - Xi Tang
- School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, P. R. China.
| | - Li-Jun Xu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhi-Yuan Zhuang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ya-Wen Wang
- School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, P. R. China.
| | - Yu Peng
- School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, P. R. China.
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2
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Tan EYK, Mat Lani AS, Sow W, Liu Y, Li H, Chiba S. Dearomatization of (Hetero)arenes through Photodriven Interplay between Polysulfide Anions and Formate. Angew Chem Int Ed Engl 2023; 62:e202309764. [PMID: 37582050 DOI: 10.1002/anie.202309764] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/11/2023] [Accepted: 08/15/2023] [Indexed: 08/17/2023]
Abstract
The facile construction of C(sp3 )-rich carbo- and heterocyclic compounds is a pivotal synthetic strategy to foster contemporary drug discovery programs. The downstream dearomatization of readily accessible two-dimensional (2D) planar arenes represents a direct pathway towards accessing three-dimensional (3D) aliphatic scaffolds. Here, we demonstrate that polysulfide anions are capable of catalyzing a dearomatization process of substituted naphthalenes, indoles, and other related heteroaromatic compounds in the presence of potassium formate and methanol under visible light irradiation. The developed protocol exhibits broad functional group tolerance, operational simplicity, scalability, and cost-effectiveness, representing a practical and sustainable synthetic tool for the arene dearomatization.
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Affiliation(s)
- Eugene Yew Kun Tan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore, 637371, Singapore
| | - Amirah S Mat Lani
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore, 637371, Singapore
| | - Wayne Sow
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore, 637371, Singapore
| | - Yuliang Liu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore, 637371, Singapore
| | - Haoyu Li
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore, 637371, Singapore
| | - Shunsuke Chiba
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore, 637371, Singapore
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3
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Yao SC, Xiao J, Nan GM, Peng Y. Progress on total synthesis and their divergent transformations of aryltetrahydrofuran-type lignans. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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A Concise Synthesis of Sacidumlignan B. Molecules 2022; 27:molecules27185775. [PMID: 36144511 PMCID: PMC9500800 DOI: 10.3390/molecules27185775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
A short synthesis of racemic Sacidumlignan B was achieved for the first time. The key steps included a formal reductive coupling between the diaryl ketone and the crotyl bromide, and the subsequent Friedel–Crafts cyclization, which led to an efficient construction of dihydronaphthalene skeleton in this 2,7′-cyclolignan natural product.
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5
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Reynolds RG, Nguyen HQA, Reddel JCT, Thomson RJ. Recent strategies and tactics for the enantioselective total syntheses of cyclolignan natural products. Nat Prod Rep 2022; 39:670-702. [PMID: 34664594 PMCID: PMC8957534 DOI: 10.1039/d1np00057h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Covering: 2000 to 2021Lignan natural products are found in many different plant species and possess numerous useful biological properties, such as anti-inflammatory, antiviral, antioxidant, antibacterial, and antitumor activities. Their utility in both traditional and conventional medicine, coupled with their structural diversity has made them popular synthetic targets over many decades. This review specifically addresses the cyclolignan subclass of the family, which possess both a C8-C8' and a C2-C7' linkage between two different phenylpropene units. We present a comprehensive overview of the diverse strategies employed by chemists to achieve enantioselective total syntheses of cyclolignans covering: 2000 to 2021.
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Affiliation(s)
- Rebekah G Reynolds
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Huong Quynh Anh Nguyen
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Jordan C T Reddel
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
| | - Regan J Thomson
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA.
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6
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Zhang HQ, Yan CX, Xiao J, Wang YW, Peng Y. Recent advances in the total synthesis of 2,7'-cyclolignans. Org Biomol Chem 2022; 20:1623-1636. [PMID: 35129186 DOI: 10.1039/d1ob02457d] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthetic progress of bioactive 2,7'-cyclolignans is reviewed. After a short introduction to biosynthesis and chemoenzymatic synthesis, the chemical synthesis of various aryltetralin, dihydronaphthalene and 7'-arylnaphthalene-types of these lignans is demonstrated. Notably, newly developed methods, such as Pd-catalyzed C-H arylation, organocatalysis and photocatalysis under visible-light, are discussed during the construction of their skeleton. These efforts will stimulate further development of novel synthetic strategies for this kind of natural product with important biological activities.
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Affiliation(s)
- Han-Qiu Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Chu-Xuan Yan
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Jian Xiao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Ya-Wen Wang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Yu Peng
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
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7
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Cao JS, Zeng J, Xiao J, Wang XH, Wang Y, Peng Y. Total synthesis of linoxepin facilitated by Ni-catalyzed tandem reductive cyclization. Chem Commun (Camb) 2022; 58:7273-7276. [DOI: 10.1039/d2cc02221d] [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 nickel-catalyzed reductive cyclization was developed to construct the tricyclic core embedded in linoxepin, a cyclolignan with a unique benzoxepin ring. The generated diasterodivergent acetals could be converted to the...
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8
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Xiao J, Zhao J, Wang YW, Luo G, Peng Y. Total syntheses of (+)-adunctins C and D: assignment of their absolute configurations. Org Biomol Chem 2021; 19:9840-9843. [PMID: 34748620 DOI: 10.1039/d1ob02055b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first total synthesis of (+)-adunctin C (ent-1) and (+)-adunctin D (2), two monoterpene-substitued dihydrochalcones isolated from Piper aduncum (Piperaceae), was achieved. A regioselective oxidative [3 + 2] cycloaddition of acylphloroglucinol with (-)-β-phellandrene was developed to construct their unique spirobenzofuran skeleton. The absolute configurations of natural adunctins 1 and 2 were thus assigned through these endeavors.
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Affiliation(s)
- Jian Xiao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Jun Zhao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Ya-Wen Wang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
| | - Gan Luo
- West China School of Pharmacy, Sichuan University, Chengdu 610041, People's Republic of China
| | - Yu Peng
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China.
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9
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Affiliation(s)
- Sayantika Bhakta
- Department of Applied Sciences Maulana Abul Kalam Azad University of Technology, West Bengal Simhat, Haringhata 741249 Nadia, West Bengal India
| | - Tapas Ghosh
- Department of Applied Sciences Maulana Abul Kalam Azad University of Technology, West Bengal Simhat, Haringhata 741249 Nadia, West Bengal India
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10
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Park S, Kim JH, Kim SH, Shin D. Transition Metal-Mediated Annulation Approaches for Synthesis of Arylnaphthalene Lignan Lactones. Front Chem 2020; 8:628. [PMID: 32850648 PMCID: PMC7424055 DOI: 10.3389/fchem.2020.00628] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/17/2020] [Indexed: 12/30/2022] Open
Abstract
Arylnaphthalene lignan lactones belong to a class of natural lignans, and more than 60 analogs have been isolated. Their pharmacological activities as well as unique structural features have attracted considerable attention from medicinal and synthetic chemists. Since the first synthesis in 1895, many synthetic methodologies with ionic or pericyclic reaction mechanisms have been reported. Transition metal catalysts sometimes provide exceptional synthetic versatility for the syntheses of natural compounds. Recently, transition metal-mediated methodologies were investigated for the construction of basic scaffolds of arylnaphthalene lignan lactones. Five kinds of transition metal catalysts containing gold, manganese, nickel, palladium, and silver have been explored. Most of the metal catalysts successfully created arylnaphthalene lactones by intermolecular or intramolecular annulative cyclization. In this review, all reports of transition metal-mediated annulative construction of arylnaphthalene lignan lactones were compiled, and synthetic approaches, mechanistic aspects, and successful applications were discussed.
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Affiliation(s)
- Sooyoung Park
- College of Pharmacy, Gachon University, Incheon, South Korea
| | - Jin-Hee Kim
- College of Pharmacy, Yonsei University, Incheon, South Korea
| | - Seok-Ho Kim
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pocheon-si, South Korea
| | - Dongyun Shin
- College of Pharmacy, Gachon University, Incheon, South Korea
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11
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Qiu ZP, Peng Y, Xiao J, Wang YW. Ni-Catalyzed Intramolecular Reductive 1,2-Dicarbofunctionalization of Alkene: Facile Access to Podophyllum Lignans Core. Synlett 2020. [DOI: 10.1055/s-0040-1707188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The facile access to the tetracyclic skeleton of podophyllotoxin, a medicinally important lignan natural product, was efficiently achieved via a unique intramolecular alkylarylation of the tethered alkene in a dihalide under mild conditions using reductive nickel catalysis.
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Affiliation(s)
- Zhong-Ping Qiu
- School of Life Science and Engineering, Southwest Jiaotong University
| | - Yu Peng
- School of Life Science and Engineering, Southwest Jiaotong University
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University
| | - Jian Xiao
- School of Life Science and Engineering, Southwest Jiaotong University
| | - Ya-Wen Wang
- School of Life Science and Engineering, Southwest Jiaotong University
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12
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Affiliation(s)
- David Barker
- School of Chemical Sciences, University of Auckland, Private Bag, Auckland 92019, New Zealand.
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