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Leger PR, Kuroda Y, Chang S, Jurczyk J, Sarpong R. C-C Bond Cleavage Approach to Complex Terpenoids: Development of a Unified Total Synthesis of the Phomactins. J Am Chem Soc 2020; 142:15536-15547. [PMID: 32799452 PMCID: PMC7771649 DOI: 10.1021/jacs.0c07316] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rearrangement of carbon-carbon (C-C) single bonds in readily available carbocyclic scaffolds can yield uniquely substituted carbocycles that would be challenging to construct otherwise. This is a powerful and often non-intuitive approach for complex molecule synthesis. The transition-metal-mediated cleavage of C-C bonds has the potential to broaden the scope of this type of skeletal remodeling by providing orthogonal selectivities compared to more traditional pericyclic and carbocation-based rearrangements. To highlight this emerging technology, a unified, asymmetric, total synthesis of the phomactin terpenoids was developed, enabled by the selective C-C bond cleavage of hydroxylated pinene derivatives obtained from carvone. In this full account, the challenges, solutions, and intricacies of Rh(I)-catalyzed cyclobutanol C-C cleavage in a complex molecule setting are described. In addition, details of the evolution of strategies that ultimately led to the total synthesis of phomactins A, K, P, R, and T, as well as the synthesis and structural reassignment of Sch 49027, are given.
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Affiliation(s)
- Paul R Leger
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yusuke Kuroda
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Stanley Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Justin Jurczyk
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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2
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Bao W, Tao Y, Cheng J, Huang J, Cao J, Zhang M, Ye W, Wang B, Li Y, Zhu L, Lee CS. In(OTf) 3-Catalyzed Cascade Cyclization for Construction of Oxatricyclic Compounds. Org Lett 2018; 20:7912-7915. [PMID: 30543298 DOI: 10.1021/acs.orglett.8b03461] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A highly diastereoselective cascade cyclization reaction has been developed for establishing a series of oxatricyclic compounds using Chan's diene and simple keto alkynal substrates with only 1 mol % of In(OTf)3 as the catalyst in 82-92% yields. The potential utility of this synthetic strategy has been demonstrated in model studies for the construction the core structures of 1α,8α:4α,5α-diepoxy-4,5-dihydroosmitopsin and cortistatin A.
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Affiliation(s)
- Wenli Bao
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Yezi Tao
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Jiangqun Cheng
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Junrong Huang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Jingming Cao
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Mengxun Zhang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Weijian Ye
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Bo Wang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Yang Li
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China
| | - Lizhi Zhu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China.,Institute of Translational Medicine, Shenzhen Second People's Hospital , The First Affiliated Hospital of Shenzhen University, Health Science Center , Shenzhen 518035 , China
| | - Chi-Sing Lee
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen University Town, Xili, Shenzhen 518055 , China.,Institute of Research and Continuing Edition (Shenzhen) , Hong Kong Baptist University , Industrialization Complex Building, Shenzhen Virtual University Park, Shenzhen 518000 , China.,Department of Chemistry , Hong Kong Baptist University , Kowloon Tong , Hong Kong SAR
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3
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Huang J, Bao W, Huang S, Yang W, Lizhi Z, Du G, Lee CS. Formal Synthesis of (+)-Phomactin A. Org Lett 2018; 20:7466-7469. [DOI: 10.1021/acs.orglett.8b03242] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Junrong Huang
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Wenli Bao
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Shuangping Huang
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Wei Yang
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Zhu Lizhi
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Guangyan Du
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Chi-Sing Lee
- Key State Laboratory of Chemical Cancer Genomics, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
- Institute of Research and Continuing Edition (Shenzhen), Hong Kong Baptist University, Industrialization Complex Building, Shenzhen Virtual
University Park, Shenzhen 518000, China
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
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Wu X, Xue L, Li D, Jia S, Ao J, Deng J, Yan H. Organocatalytic Intramolecular [4+2] Cycloaddition between In Situ Generated Vinylidene ortho
-Quinone Methides and Benzofurans. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707523] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyan Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Lu Xue
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Dongmei Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Ao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Deng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
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Wu X, Xue L, Li D, Jia S, Ao J, Deng J, Yan H. Organocatalytic Intramolecular [4+2] Cycloaddition between In Situ Generated Vinylidene ortho
-Quinone Methides and Benzofurans. Angew Chem Int Ed Engl 2017; 56:13722-13726. [DOI: 10.1002/anie.201707523] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/27/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaoyan Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Lu Xue
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Dongmei Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Ao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Deng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
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