1
|
Xu B, Zhang Z, Tantillo DJ, Dai M. Concise Total Syntheses of ( -)-Crinipellins A and B Enabled by a Controlled Cargill Rearrangement. J Am Chem Soc 2024; 146:21250-21256. [PMID: 39052841 PMCID: PMC11311239 DOI: 10.1021/jacs.4c07900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/17/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Herein, we report concise total syntheses of diterpene natural products (-)-crinipellins A and B with a tetraquinane skeleton, three adjacent all-carbon quaternary centers, and multiple oxygenated and labile functional groups. Our synthesis features a convergent Kozikowski β-alkylation to unite two readily available building blocks with all the required carbon atoms, an intramolecular photochemical [2 + 2] cycloaddition to install three challenging and adjacent all-carbon quaternary centers and a 5-6-4-5 tetracyclic skeleton, and a controlled Cargill rearrangement to rearrange the 5-6-4-5 tetracyclic skeleton to the desired tetraquinane skeleton. These strategically enabling transformations allowed us to complete total syntheses of (-)-crinipellins A and B in 12 and 13 steps, respectively. The results of quantum chemical computations revealed that the Bronsted acid-catalyzed Cargill rearrangements likely involve stepwise paths to products and the AlR3-catalyzed Cargill rearrangements likely involve a concerted path with asynchronous alkyl shifting events to form the desired product.
Collapse
Affiliation(s)
- Bo Xu
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Ziyao Zhang
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Dean J. Tantillo
- Department
of Chemistry, University of California—Davis, Davis, California 95616, United States
| | - Mingji Dai
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
- Department
of Pharmacology and Chemical Biology, Emory
University, Atlanta, Georgia 30322, United States
| |
Collapse
|
2
|
Hashimoto Y, Kong WY, Tantillo DJ. Discovery of a Formal Dyotropic Rearrangement during Acid-Mediated Dioxabicyclo[4.2.1]nonanone Formation. Org Lett 2024; 26:5441-5446. [PMID: 38900922 DOI: 10.1021/acs.orglett.4c01616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
A new reaction mechanism for the construction of dioxabicyclo[4.2.1]nonanone skeletons via a cation cascade has been proposed and examined by DFT and ab initio computations. This mechanism features the following steps: (1) intramolecular Friedel-Crafts-type cyclization with a methyl oxocarbenium cation formed by carboxylate disconnection, (2) electron-rich aromatic ring assisted methoxide loss followed by lactone formation, and (3) stepwise dyotropic rearrangement resulting in skeletal isomerization from a dioxabicyclo[3.2.2]nonanone to the dioxabicyclo[4.2.1]nonanone product observed experimentally. The high regioselectivity and driving force for the overall rearrangement were rationalized, and Lewis and Brønsted acid mediated reactivities were compared.
Collapse
Affiliation(s)
- Yoshimitsu Hashimoto
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
- Department of Chemistry, University of California-Davis, Davis, California 95616, United States
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California-Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California-Davis, Davis, California 95616, United States
| |
Collapse
|
3
|
Wang X, Yin G, Wang Y, Zeng Y, Peng Y, Zhang X, Peng X, Wang Z. Asymmetric Total Synthesis of Four Stemona Alkaloids. Org Lett 2023; 25:2213-2217. [PMID: 36966439 DOI: 10.1021/acs.orglett.3c00349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023]
Abstract
Asymmetric total syntheses of four Stemona alkaloids were accomplished, and among them, bisdehydrostemoninine A and stemoninine A were synthesized for the first time. Notably, these four alkaloids were divergently synthesized from a common tetracyclic intermediate, which was easily obtained from a known compound. Friedel-Crafts acylation was employed to introduce the key side chain at position C3 of Stemona alkaloids.
Collapse
Affiliation(s)
- Xiaodong Wang
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Gaofeng Yin
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Yuqing Wang
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Yaofu Zeng
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Ying Peng
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Xi Zhang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Xue Peng
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Zhen Wang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, Gansu, China
| |
Collapse
|
4
|
Lin Y, Zhang R, Wang D, Cernak T. Computer-aided key step generation in alkaloid total synthesis. Science 2023; 379:453-457. [PMID: 36730413 DOI: 10.1126/science.ade8459] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Efficient chemical synthesis is critical to satisfying future demands for medicines, materials, and agrochemicals. Retrosynthetic analysis of modestly complex molecules has been automated over the course of decades, but the combinatorial explosion of route possibilities has challenged computer hardware and software until only recently. Here, we explore a computational strategy that merges computer-aided synthesis planning with molecular graph editing to minimize the number of synthetic steps required to produce alkaloids. Our study culminated in an enantioselective three-step synthesis of (-)-stemoamide by leveraging high-impact key steps, which could be identified in computer-generated retrosynthesis plans using graph edit distances.
Collapse
Affiliation(s)
- Yingfu Lin
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Rui Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Di Wang
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tim Cernak
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| |
Collapse
|
5
|
Olivier WJ, Henneveld JS, Smith JA, Hawkins BC, Bissember AC. Strategies for the synthesis of Stemona alkaloids: an update. Nat Prod Rep 2022; 39:2308-2335. [PMID: 36218078 DOI: 10.1039/d2np00058j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Covering: 2009 to 2022The Stemona alkaloids, which are found in plant species from the family Stemonaceae, represent a tremendously large and structurally-diverse family of natural products. This review presents and discusses a selection of case studies, grouped by alkaloid class, that showcase the key strategies and overall progress that has been made in the synthesis of Stemona alkaloids and related compounds since 2009. Structural reassignments that have been reported over this period are also identified where necessary.
Collapse
Affiliation(s)
- Wesley J Olivier
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia.
| | - Jackson S Henneveld
- Department of Chemistry, University of Otago, Dunedin, Otago 9054, New Zealand.
| | - Jason A Smith
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia.
| | - Bill C Hawkins
- Department of Chemistry, University of Otago, Dunedin, Otago 9054, New Zealand.
| | - Alex C Bissember
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia.
| |
Collapse
|
6
|
Abstract
Herein, we report the enantioselective total synthesis of dysiherbols A, C, and D, a unique group of 6/6/5/6/6 pentacyclic quinone/hydroquinone sesquiterpenes, featuring a photo-induced quinone-alkene [2 + 2] cycloaddition and a tandem [1,2]-anionic rearrangement/cyclopropane fragmentation as key elements. Based on our total synthesis, the originally proposed structures of dysiherbols C and D have been revised. Detailed computational studies were carried out to gain deep insight into the unprecedented [1,2]-anionic rearrangement, which revealed that the transformation, albeit a symmetry-forbidden process, proceeded through a concerted manner owing to the release of high ring-strain energy and the evolution of local aromaticity in the transition state. Taking all, the present work offers a mechanistically interesting and synthetically useful approach to accessing dysiherbols and related congeners.
Collapse
Affiliation(s)
- Shengkun Hu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yefeng Tang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| |
Collapse
|
7
|
Csenki JT, Tóth BL, Béke F, Varga B, P. Fehér P, Stirling A, Czégény Z, Bényei A, Novák Z. Synthesis of Hydrofluoroolefin‐Based Iodonium Reagent via Dyotropic Rearrangement and Its Utilization in Fluoroalkylation. Angew Chem Int Ed Engl 2022; 61:e202208420. [PMID: 35876269 PMCID: PMC9540448 DOI: 10.1002/anie.202208420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Indexed: 11/25/2022]
Abstract
[1,2]‐shift of atoms in alkyl fragments belongs to the class of dyotropic rearrangements. Various atoms, including halogens can be involved in the migration, however participation of iodine is unprecedented. Herein, we report our experimental and DFT studies on the oxidation triggered dyotropic rearrangement of iodo and chloro functions via butterfly‐type transition state to demonstrate the migrating ability of λ3‐iodane centre. With the exploitation of dyotropic rearrangement we designed and synthesized a novel fluoroalkyl iodonium reagent from industrial feedstock gas HFO‐1234yf. We demonstrated that the hypervalent reagent serves as an excellent fluoroalkylation agent for various amines and nitrogen heterocycles.
Collapse
Affiliation(s)
- János T. Csenki
- ELTE “Lendület” Catalysis and Organic Synthesis Research Group DepartmentInstitute of ChemistryEötvös Loránd UniversityPázmány Péter stny. 1/A1117BudapestHungary
| | - Balázs L. Tóth
- ELTE “Lendület” Catalysis and Organic Synthesis Research Group DepartmentInstitute of ChemistryEötvös Loránd UniversityPázmány Péter stny. 1/A1117BudapestHungary
| | - Ferenc Béke
- ELTE “Lendület” Catalysis and Organic Synthesis Research Group DepartmentInstitute of ChemistryEötvös Loránd UniversityPázmány Péter stny. 1/A1117BudapestHungary
| | - Bálint Varga
- ELTE “Lendület” Catalysis and Organic Synthesis Research Group DepartmentInstitute of ChemistryEötvös Loránd UniversityPázmány Péter stny. 1/A1117BudapestHungary
| | - Péter P. Fehér
- Research Centre for Natural SciencesEötvös Loránd Research NetworkMagyar Tudósok körútja 21117BudapestHungary
| | - András Stirling
- Research Centre for Natural SciencesEötvös Loránd Research NetworkMagyar Tudósok körútja 21117BudapestHungary
- Department of ChemistryEszterházy Károly Catholic UniversityLeányka u. 63300EgerHungary
| | - Zsuzsanna Czégény
- Research Centre for Natural SciencesEötvös Loránd Research NetworkMagyar Tudósok körútja 21117BudapestHungary
| | - Attila Bényei
- Department of Physical ChemistryUniversity of DebrecenEgyetem tér 14032DebrecenHungary
| | - Zoltán Novák
- ELTE “Lendület” Catalysis and Organic Synthesis Research Group DepartmentInstitute of ChemistryEötvös Loránd UniversityPázmány Péter stny. 1/A1117BudapestHungary
| |
Collapse
|
8
|
Olivier WJ, Smith JA, Bissember AC. Structural Revision of Parvistemoamide: Informing Biosynthetic Proposals of Stemona Alkaloids. Org Lett 2022; 24:5772-5776. [PMID: 35901193 DOI: 10.1021/acs.orglett.2c02254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The natural product parvistemoamide was isolated in 1991 and has ostensibly eluded synthesis. Its distinctive assigned structure represents the first and only Stemona alkaloid within its class. For over 30 years, this structure has influenced biosynthetic proposals concerning this family of natural products. Following synthetic studies and comprehensive analysis of relevant literature, a revised structure of parvistemoamide is proposed that is consistent with the fundamental Stemona alkaloid stemoamide.
Collapse
Affiliation(s)
- Wesley J Olivier
- School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Jason A Smith
- School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Alex C Bissember
- School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania 7001, Australia
| |
Collapse
|
9
|
Csenki JT, Tóth BL, Béke F, Varga B, Fehér PP, Stirling A, Czégény Z, Bényei A, Novák Z. Synthesis of Hydrofluoroolefin‐based Iodonium Reagent via Dyotropic Rearrangement and Its Utilization in Fluoroalkylation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- János Tivadar Csenki
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Institute of Chemistry HUNGARY
| | - Balázs László Tóth
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Institute of Chemistry HUNGARY
| | - Ferenc Béke
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Institute of Chemistry HUNGARY
| | - Bálint Varga
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Institute of Chemistry HUNGARY
| | - Péter Pál Fehér
- Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont HUNGARY
| | - András Stirling
- Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont HUNGARY
| | - Zsuzsanna Czégény
- Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont HUNGARY
| | - Attila Bényei
- University of Debrecen: Debreceni Egyetem Department of Physical Chemistry HUNGARY
| | - Zoltán Novák
- Eotvos Lorand Tudomanyegyetem Institute of Chemistry Pázány Péter stny 1/a 1117 Budapest HUNGARY
| |
Collapse
|
10
|
Feng Z, Jiao H, Ye Z, Ye J, Xu ZF, Duan S, Li CY. Synthesis of Azepane Derivatives via Formal 1,3-Migration of Hydroxy and Acyloxy Groups and Selective Annulation. Org Lett 2022; 24:5254-5259. [PMID: 35852457 DOI: 10.1021/acs.orglett.2c01646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Formal 1,3-migration of hydroxy and acyloxy groups initiated by α-imino rhodium carbene was achieved, and the following selective annulations of the corresponding zwitterions could efficiently afford azepane derivatives. Benefiting from a time-saving procedure as well as a good functional group tolerance, this unique migration-annulation protocol could provide an efficient tool for synthesizing seven-membered N-heterocycles. The plausible mechanism is discussed.
Collapse
Affiliation(s)
- Zijuan Feng
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Hongjian Jiao
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Zihang Ye
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Jie Ye
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Ze-Feng Xu
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Shengguo Duan
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| |
Collapse
|
11
|
Rosso GB, Paz BM, Pilli RA. Formal Syntheses of (±)‐Tuberostemospiroline and (±)‐Stemo‐lactam R and Total Synthesis of (±)‐Stemoamide. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Giovanni Bernardi Rosso
- State University of Campinas: Universidade Estadual de Campinas Chemistry Cidade Universitaria Zeferino Vaz 1308-970 Campinas BRAZIL
| | - Bruno Matos Paz
- State University of Campinas: Universidade Estadual de Campinas Chemistry Cidade Universitaria Zeferino Vaz 13083-970 Campinas BRAZIL
| | - Ronaldo Aloise Pilli
- UNICAMP Institute of Chemistry Organic Chemistry DepartmentPO BOX 6154 13083-970 Campinas, SP BRAZIL
| |
Collapse
|
12
|
Wang X, Wang Z, Ma X, Huang Z, Sun K, Gao X, Fu S, Liu B. Asymmetric Total Synthesis of Shizukaol J, Trichloranoid C and Trishizukaol A. Angew Chem Int Ed Engl 2022; 61:e202200258. [PMID: 35102682 DOI: 10.1002/anie.202200258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Indexed: 01/14/2023]
Abstract
The asymmetric total synthesis of three lindenane sesquiterpenoid oligomers, shizukaol J, trichloranoid C and trishizukaol A, has been accomplished concisely in 15, 16 and 18 longest linear steps, respectively. The expeditious construction of molecular architectures was facilitated by Nelson's catalytic asymmetric ketene-aldehyde cycloaddition, a sequence of allylic alkylation/reduction/acidic cyclization to forge a lactone, and a double aldol condensation cascade to construct the 5/6 bicyclic system. Diastereoselective nucleophilic substitution promoted by a phase transfer catalyst constructed the C11 quaternary stereogenic center, thus prompting synthetic efficacy toward shizukaol J. The synthesis of trichloranoid C and trishizukaol A was achieved after a cascade involving furanyl diene formation and a Diels-Alder reaction, as well as a one-pot sequence involving furan oxidation and global deprotection. Furthermore, our biological evaluation revealed that two compounds exhibited unexpected toxicity against tumor cell lines.
Collapse
Affiliation(s)
- Xiao Wang
- College of Chemistry, Sichuan University, 29 Wangjiang Rd., Chengdu, Sichuan, 610064, China
| | - Zhuang Wang
- College of Chemistry, Sichuan University, 29 Wangjiang Rd., Chengdu, Sichuan, 610064, China
| | - Xianjian Ma
- College of Chemistry, Sichuan University, 29 Wangjiang Rd., Chengdu, Sichuan, 610064, China
| | - Zhengsong Huang
- College of Chemistry, Sichuan University, 29 Wangjiang Rd., Chengdu, Sichuan, 610064, China
| | - Ke Sun
- School of Pharmaceutical Sciences, Xiamen University, South Xiangan Rd., Xiamen, Fujian, 361102, China
| | - Xiang Gao
- School of Pharmaceutical Sciences, Xiamen University, South Xiangan Rd., Xiamen, Fujian, 361102, China
| | - Shaomin Fu
- College of Chemistry, Sichuan University, 29 Wangjiang Rd., Chengdu, Sichuan, 610064, China
| | - Bo Liu
- College of Chemistry, Sichuan University, 29 Wangjiang Rd., Chengdu, Sichuan, 610064, China
| |
Collapse
|
13
|
Wang X, Wang Z, Ma X, Huang Z, Sun K, Gao X, Fu S, Liu B. Asymmetric Total Synthesis of Shizukaol J, Trichloranoid C and Trishizukaol A. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiao Wang
- College of Chemistry Sichuan University 29 Wangjiang Rd. Chengdu Sichuan 610064 China
| | - Zhuang Wang
- College of Chemistry Sichuan University 29 Wangjiang Rd. Chengdu Sichuan 610064 China
| | - Xianjian Ma
- College of Chemistry Sichuan University 29 Wangjiang Rd. Chengdu Sichuan 610064 China
| | - Zhengsong Huang
- College of Chemistry Sichuan University 29 Wangjiang Rd. Chengdu Sichuan 610064 China
| | - Ke Sun
- School of Pharmaceutical Sciences Xiamen University South Xiangan Rd. Xiamen Fujian 361102 China
| | - Xiang Gao
- School of Pharmaceutical Sciences Xiamen University South Xiangan Rd. Xiamen Fujian 361102 China
| | - Shaomin Fu
- College of Chemistry Sichuan University 29 Wangjiang Rd. Chengdu Sichuan 610064 China
| | - Bo Liu
- College of Chemistry Sichuan University 29 Wangjiang Rd. Chengdu Sichuan 610064 China
| |
Collapse
|
14
|
Sugiyama Y, Soda Y, Yoritate M, Tajima H, Takahashi Y, Shibuya K, Ogihara C, Yokoyama T, Oishi T, Sato T, Chida N. Lactam Strategy Using Amide-Selective Nucleophilic Addition for the Quick Access to Complex Amines: Unified Total Synthesis of Stemoamide-Type Alkaloids. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasukazu Sugiyama
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yasuki Soda
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Makoto Yoritate
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Hayato Tajima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yoshito Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Kana Shibuya
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Chisato Ogihara
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takashi Yokoyama
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takeshi Oishi
- School of Medicine, Keio University, 4-1-1, Hiyoshi, Kohoku-ku, Yokohama 223-8521, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| |
Collapse
|
15
|
Shi T, Cao F, Chen J, Wang X, Yin G, Wang H, Wang Z. Total syntheses of seven stemoamide-type Stemona alkaloids. Org Chem Front 2022. [DOI: 10.1039/d1qo01578h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Six Stemona alkaloids were synthesized racemically using stemoamide, obtained via a cascade cyclization or our reported transannular cyclization of parvistemoamide, as the common intermediate.
Collapse
Affiliation(s)
- Tao Shi
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jinhong Chen
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Xiaodong Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Gaofeng Yin
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Huihong Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, China
| |
Collapse
|
16
|
Wang X, Shi T, Yin G, Wang Y, Li Z, Wang Z. Asymmetric Total Syntheses of Five Pyrrole-Type Stemona Alkaloids. Org Chem Front 2022. [DOI: 10.1039/d2qo00456a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric total syntheses of five pyrrole-type Stemona alkaloids and two stereoisomers were accomplished, among which 3-n-butylneostemonine and bisdehydroneostemonine were synthesized for the first time, and the NMR data of...
Collapse
|
17
|
Shi T, Wang X, Chen JH, Cao F, Yin G, Zeng YF, Wang Z. Recent Advances in the Transformations of Different Types of Stemona Alkaloids. Org Chem Front 2022. [DOI: 10.1039/d2qo00789d] [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
In recent years, researches on the total syntheses of Stemona alkaloids with different 5/7 bicyclic systems have attracted increasing attention, and the development momentum in this field has gradually changed...
Collapse
|
18
|
Abstract
The synthetic utility of rearrangement reactions in total synthesis for the rapid construction of core skeletons, the precise control of stereochemistry, and the identification of suitable synthons has been discussed.
Collapse
Affiliation(s)
- Lu Chen
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Guang Li
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Liansuo Zu
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| |
Collapse
|
19
|
Zhang J, Ma Y, Qiu K, Li B, Xue Z, Tian B, Tang Y. Elucidating the selectivity of dyotropic rearrangements of β-lactones: a computational survey. Org Chem Front 2022. [DOI: 10.1039/d1qo01591e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A comprehensive computational study on dyotropic rearrangements of β-lactones has been performed for the first time, which provides a valuable guidance for predicting and controlling the selectivity of the reactions.
Collapse
Affiliation(s)
- Jingyang Zhang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yumiao Ma
- BSJ Institute, Beijing, 100084, China
| | - Ke Qiu
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Bo Li
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, USA
| | - Zhengwen Xue
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Boxue Tian
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yefeng Tang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| |
Collapse
|
20
|
Chang YP, Ma X, Shao H, Zhao YM. Total Syntheses of Galanthamine and Lycoramine via a Palladium-Catalyzed Cascade Cyclization and Late-Stage Reorganization of the Cyclized Skeleton. Org Lett 2021; 23:9659-9663. [PMID: 34874174 DOI: 10.1021/acs.orglett.1c03943] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, we report the highly efficient total syntheses of galanthamine and lycoramine from a common tetracyclic intermediate. This concise synthetic route features a two-phase strategy, which includes the early-stage rapid construction of a tetracyclic skeleton followed by the late-stage selective reorganization of the tetracyclic skeleton. Key to the success of this strategy are a palladium-catalyzed carbonylative cascade annulation, a DDQ-mediated intramolecular regioselective oxidative lactamization, as well as a BF3·Et2O-promoted reorganization of the bridged tetracyclic skeleton.
Collapse
Affiliation(s)
- Ya-Ping Chang
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Xia Ma
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Hui Shao
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Yu-Ming Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China.,CAS Key Lab of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| |
Collapse
|
21
|
Deng Y, Liang X, Wei K, Yang YR. Ir-Catalyzed Asymmetric Total Syntheses of Bisdehydrotuberostemonine D, Putative Bisdehydrotuberostemonine E and Structural Revision of the Latter. J Am Chem Soc 2021; 143:20622-20627. [PMID: 34870982 DOI: 10.1021/jacs.1c11265] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The first total syntheses of bisdehydrotuberostemonine D (8) and putative bisdehydrotuberostemonine E (9), two novel pyrrole Stemona alkaloids, along with the synthesis of bisdehydrotuberostemonine (3) have been completed in 12-13 steps. Our strategy harnesses the power of transition-metal-catalyzed reactions employing Ir, Ru, and Pd, in particular Ir-catalyzed asymmetric allylation of aldehydes, two distinct protocols recently developed by Carreira and Krische, respectively. The threefold use of Ir catalysis, first in the stereodivergent construction of two contiguous stereocenters at C (9,10) and then in rapid formation of the two γ-butyrolactone motifs, enabled the route's efficiency. Through this work, the originally assigned structure of bisdehydrotuberostemonine E (9) should be revised as 18α-bisdehydrotuberostemonine D (8*).
Collapse
Affiliation(s)
- Yi Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Liang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Kun Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yu-Rong Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| |
Collapse
|
22
|
He Q, Ye JL, Xu FF, Geng H, Chen TT, Chen H, Huang PQ. Tf 2O/TTBP (2,4,6-Tri- tert-butylpyrimidine): An Alternative Amide Activation System for the Direct Transformations of Both Tertiary and Secondary Amides. J Org Chem 2021; 86:16300-16314. [PMID: 34499513 DOI: 10.1021/acs.joc.1c01572] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ten types of Tf2O/TTBP-mediated amide transformation reactions were investigated. The results showed that compared with pyridine derivatives 2,6-di-tert-butyl-4-methylpyridine (DTBMP) and 2-fluoropyridine (2-F-Pyr.), TTBP can serve as an alternative amide activation system for the direct transformation of both secondary and tertiary amides. For most surveyed examples, higher or comparable yields were generally obtained. In addition, Tf2O/TTBP combination was used to promote the condensation reactions of 2-(tert-butyldimethylsilyloxy)furan (TBSOF) with both tertiary and secondary amides, the one-pot reductive Bischler-Napieralski-type reaction of tertiary lactams, and Movassaghi and Hill's modern version of the Bischler-Napieralski reaction. The value of the Tf2O/TTBP-based methodology was further demonstrated by the concise and high-yielding syntheses of several natural products.
Collapse
Affiliation(s)
- Qian He
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Jian-Liang Ye
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Fang-Fang Xu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Hui Geng
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Ting-Ting Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Hang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| |
Collapse
|
23
|
Xu ZJ, Liu XY, Zhu MZ, Xu YL, Yu Y, Xu HR, Cheng AX, Lou HX. Photoredox-Catalyzed Cascade Reactions Involving Aryl Radical: Total Synthesis of (±)-Norascyronone A and (±)-Eudesmol. Org Lett 2021; 23:9073-9077. [PMID: 34797080 DOI: 10.1021/acs.orglett.1c03319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we have developed two types of photoredox-catalyzed cascade reactions using diaryliodonium salts for the concise synthesis of norascyronone A and β-eudesmol. A rationally designed photoredox-catalyzed arylation/cyclization/Friedel-Crafts cascade reaction of enone was exploited to generate the norascyronone polycyclic skeleton. A visible-light-induced radical cyclization/acyloxy-migration reaction was explored to forge the decalin skeleton of eudesmol, and mechanistic studies indicated the reaction was initiated by one-electron oxidation of the enol ester.
Collapse
Affiliation(s)
- Ze-Jun Xu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China.,State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Jinan 2000325, China
| | - Xu-Yuan Liu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Ming-Zhu Zhu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yu-Liang Xu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yue Yu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Hai-Ruo Xu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Ai-Xia Cheng
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Hong-Xiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| |
Collapse
|
24
|
Liu W, Winssinger N. Synthesis of α-exo-Methylene-γ-butyrolactones: Recent Developments and Applications in Natural Product Synthesis. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1577-6085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe α-exo-methylene-γ-butyrolactone moiety is present in a vast array of structurally diverse natural products and is often central to their biological activity. In this short review, we summarize new approaches to α-exo-methylene-γ-butyrolactones developed over the past decade as well as their applications in total synthesis.1 Introduction2 Approaches to α-exo-Methylene-γ-butyrolactones2.1 Enantioselective Synthesis via Lactonization Approaches2.2 Enantioselective Halolactonizations2.3 Enantioselective Barbier-Type Allylation2.4 C–H Insertion/Olefination Sequences2.5 Alkene Cyclization2.6 Strain-Driven Dyotropic Rearrangement3 β-(Hydroxymethylalkyl)-α-exo-methylene-γ-butyrolactones4 Applications in Total Synthesis4.1 Sesquiterpene Lactones4.2 Lignans4.3 Other Monocyclic Natural Products4.4 Choice of Methodology in Recent Total Syntheses5 Summary and Outlook
Collapse
|
25
|
Bao R, Zhang H, Tang Y. Biomimetic Synthesis of Natural Products: A Journey To Learn, To Mimic, and To Be Better. Acc Chem Res 2021; 54:3720-3733. [PMID: 34549936 DOI: 10.1021/acs.accounts.1c00459] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Total synthesis of natural products has been one of the most exciting and dynamic areas in synthetic organic chemistry. Nowadays, the major challenge in this field is not whether a given target of interest can be synthesized but how to make it with commendable efficiency and practicality. To meet this grand challenge, a wise way is to learn from Mother Nature who is recognized for her superb capability of forging complicated and sometimes beyond-imagination molecules in her own delicate way. Indeed, since Sir Robert Robinson published his groundbreaking synthesis of tropinone in 1917, biomimetic synthesis of natural products, a process of imitating nature's way to make molecules, has evolved into one of the most popular research directions in organic synthesis.Our group has been engaging in biomimetic synthesis of natural products in the past decade. During this time, we have come to realize that the successful implementation of a biomimetic synthesis entails the orchestrated combination of bioinspiration and rational design. On the one hand, we prefer to utilize some elegant bioinspired transformations (e.g., Diels-Alder dimerization, 6π-electrocyclization, and [2 + 2]-photocycloaddition) as the key steps of our synthesis, which enable rapid construction of the core skeletons of the chased targets with high efficiency; on the other hand, various powerful reactions (e.g., dyotropic rearrangement of β-lactone, tandem aldol condensation/Grob fragmentation reaction, and organocatalytic asymmetric Mukaiyama-Michael addition) are rationally designed by us, which allow for facile access to the requisite precursors for attempting biomimetic transformations. In some cases, the proposed biomimetic transformation may fail to give a satisfactory result in practice, and thus we opt to develop creative tactics (e.g., hydrogen atom transfer-triggered vinyl cyclobutane ring opening/oxygen insertion/cyclization cascade) that can meet the challenge. Guided by this synthesis concept, we have achieved the total syntheses of multiple families of natural products of great importance in both chemistry and biology, representatives of which include xanthanolides, cytochalasans, and plakortin-type polyketides. Of note, most of these targets could be accessed in a concise, efficient, and scalable manner, which paves the way for further exploration of their biological functions and medicinal potential. Moreover, owing to their biomimetic nature, our syntheses provide valuable information for deciphering the underlying biosynthetic pathways of the chased targets, which could not be attained by other synthetic modes.
Collapse
Affiliation(s)
- Ruiyang Bao
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Haoyu Zhang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yefeng Tang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| |
Collapse
|