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Kimm M, Järving I, Ošeka M, Kanger T. Asymmetric Organocatalytic [2,3]‐Wittig Rearrangement of Cyclohexanone Derivatives. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mariliis Kimm
- Department of Chemistry and Biotechnology Tallinn University of Technology Akedeemia tee 15 12618 Tallinn Estonia
| | - Ivar Järving
- Department of Chemistry and Biotechnology Tallinn University of Technology Akedeemia tee 15 12618 Tallinn Estonia
| | - Maksim Ošeka
- Department of Chemistry and Biotechnology Tallinn University of Technology Akedeemia tee 15 12618 Tallinn Estonia
| | - Tõnis Kanger
- Department of Chemistry and Biotechnology Tallinn University of Technology Akedeemia tee 15 12618 Tallinn Estonia
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2
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Li B, Zhang G, Xu T. Pd‐Catalyzed Regio‐ and Diastereoselective Heck Cyclization to Access Bicyclo[3.2.1]octanone Ring Systems. ChemCatChem 2020. [DOI: 10.1002/cctc.202001089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bo Li
- Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Guiming Zhang
- Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Tao Xu
- Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products Pilot National Laboratory for Marine Science and Technology 1 Wenhai Road Qingdao 266237 P. R. China
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3
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Affiliation(s)
- Yang Gao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Yi Wei
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Dawei Ma
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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4
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Abstract
Starting from ( R)-seudenol, an asymmetric synthesis of the DEFG rings of solanoeclepin A has been developed. The key transformations include the substrate-controlled asymmetric Staudinger ketene cycloaddition and the intramolecular aldol reaction leading to the tricyclo[5.2.1.01,6]decane core of solanoeclepin A in 10 steps in the longest reaction sequence.
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Affiliation(s)
- Mao Sun
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba, 401331 Chongqing , China.,Guangzhou Institute of Biomedicine and Health , The University of the Chinese Academy of Sciences , 190 Kaiyuan Avenue, The Science Park of Guangzhou , Guangzhou , Guangdong 510530 , China
| | - Wei-Dong Z Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba, 401331 Chongqing , China
| | - Fayang G Qiu
- Guangzhou Institute of Biomedicine and Health , The University of the Chinese Academy of Sciences , 190 Kaiyuan Avenue, The Science Park of Guangzhou , Guangzhou , Guangdong 510530 , China
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5
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Abstract
Total syntheses of biologically and structurally fascinating sesterterpenoids published between Jan. 2012 and Jan. 2018 are summarized and discussed here.
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Affiliation(s)
- Yuye Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
- Department of Chemistry and Shenzhen Grubbs Institute
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Shaoping Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
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6
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Zhao N, Xie S, Tian P, Tong R, Ning C, Xu J. Asymmetric total synthesis of (+)-astellatol and (−)-astellatene. Org Chem Front 2019. [DOI: 10.1039/c9qo00384c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Here we describe the full account of the total synthesis of (+)-astellatol, as well as the first total synthesis of (−)-astellatene.
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Affiliation(s)
- Nan Zhao
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
| | - Shengling Xie
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
| | - Peilin Tian
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
| | - Rongbiao Tong
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Chengqing Ning
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
- SUSTech Academy for Advanced Interdisciplinary Studies
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
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7
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8
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Zhao N, Yin S, Xie S, Yan H, Ren P, Chen G, Chen F, Xu J. Total Synthesis of Astellatol. Angew Chem Int Ed Engl 2018; 57:3386-3390. [PMID: 29364591 DOI: 10.1002/anie.201800167] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Indexed: 12/14/2022]
Abstract
A nearly-30-year-old unanswered synthetic puzzle, astellatol, has been solved in an enantiospecific manner. The highly congested pentacyclic skeleton of this rare sesterterpenoid, which possesses a unique bicyclo[4.1.1]octane motif, ten stereocenters, a cyclobutane that contains two quaternary centers, an exo-methylene group, and a sterically encumbered isopropyl trans-hydrindane motif, makes astellatol arguably one of the most challenging targets for sesterterpenoid synthesis. An intramolecular Pauson-Khand reaction was exploited to construct the right-hand side scaffold of this sesterterpenoid. An unprecedented reductive radical 1,6-addition, mediated by SmI2 , forged the cyclobutane motif. Last, a strategic oxidation/reduction step provided not only the decisive solution for the remarkably challenging late-stage transformations, but also a highly valuable unravelling of the notorious issue of trans-hydrindane synthesis. Importantly, the synthesis of astellatol showcases a rapid, scalable strategy to access diverse complex isopropyl trans-hydrindane sesterterpenoids.
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Affiliation(s)
- Nan Zhao
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Shuqiang Yin
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Shengling Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Hao Yan
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Pan Ren
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Gui Chen
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Fang Chen
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
| | - Jing Xu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen Grubbs Institute, Shenzhen, Guangdong, China
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9
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Zhao N, Yin S, Xie S, Yan H, Ren P, Chen G, Chen F, Xu J. Total Synthesis of Astellatol. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nan Zhao
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Shuqiang Yin
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Shengling Xie
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Hao Yan
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Pan Ren
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Gui Chen
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Fang Chen
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
| | - Jing Xu
- Department of Chemistry; Southern University of Science and Technology; Shenzhen Grubbs Institute; Shenzhen Guangdong China
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10
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Synthetic study of solanoeclepin A: Cyclobutane cyclization via SmI 2 -additive-mediated reaction and D ring functionalization. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.065] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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