51
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Joshi PR, Nanubolu JB, Menon RS. Oxygenative and Dehydrogenative [3 + 3] Benzannulation Reactions of α,β-Unsaturated Aldehydes and γ-Phosphonyl Crotonates Mediated by Air: Regioselective Synthesis of 4-Hydroxybiaryl-2-carboxylates. Org Lett 2016; 18:752-5. [DOI: 10.1021/acs.orglett.6b00016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Prabhakar Ramchandra Joshi
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Jagadeesh Babu Nanubolu
- Centre
for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Rajeev S. Menon
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
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52
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Yang M, Yang X, Sun H, Li A. Total Synthesis of Ileabethoxazole, Pseudopteroxazole, andseco-Pseudopteroxazole. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510568] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ming Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiaowen Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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53
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Yang M, Yang X, Sun H, Li A. Total Synthesis of Ileabethoxazole, Pseudopteroxazole, and seco
-Pseudopteroxazole. Angew Chem Int Ed Engl 2016; 55:2851-5. [DOI: 10.1002/anie.201510568] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Ming Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiaowen Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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54
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Moreno J, Picazo E, Morrill LA, Smith JM, Garg NK. Enantioselective Total Syntheses of Akuammiline Alkaloids (+)-Strictamine, (-)-2(S)-Cathafoline, and (-)-Aspidophylline A. J Am Chem Soc 2016; 138:1162-5. [PMID: 26783944 DOI: 10.1021/jacs.5b12880] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The akuammiline alkaloids are a family of natural products that have been widely studied for decades. Although notable synthetic achievements have been made recently, akuammilines that possess a methanoquinolizidine core have evaded synthetic efforts. We report an asymmetric approach to these alkaloids, which has culminated in the first total syntheses of (-)-2(S)-cathafoline and the long-standing target (+)-strictamine. Moreover, the first enantioselective total synthesis of aspidophylline A is described.
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Affiliation(s)
- Jesus Moreno
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - Elias Picazo
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - Lucas A Morrill
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - Joel M Smith
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - Neil K Garg
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
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55
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Abe T, Ishikura M. Palladium-catalyzed Cross-coupling Reaction of Indolylborates and its Application for the Syntheses of Indole Alkaloids. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Minoru Ishikura
- School of Pharmaceutical Sciences, Health Sciences University of Hokkaido
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56
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Sun Y, Meng Z, Chen P, Zhang D, Baunach M, Hertweck C, Li A. A concise total synthesis of sespenine, a structurally unusual indole terpenoid from Streptomyces. Org Chem Front 2016. [DOI: 10.1039/c5qo00416k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A ten-step (the longest linear sequence) total synthesis of sespenine was accomplished.
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Affiliation(s)
- Yu Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Zhanchao Meng
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Pengxi Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Deliang Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Martin Baunach
- Leibniz Institute for Natural Product Research and Infection Biology
- HKI
- Jena
- Germany
| | - Christian Hertweck
- Leibniz Institute for Natural Product Research and Infection Biology
- HKI
- Jena
- Germany
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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57
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Abstract
A concise total synthesis of (±)-serotobenine via a strategy inspired by the biosynthetic hypothesis for this alkaloid was accomplished.
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Affiliation(s)
- Kangjiang Liang
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- China
| | - Ting Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- China
| | - Chengfeng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- China
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58
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Lundgren RJ, Thomas BN. Chemo- and regioselective reductive transposition of allylic alcohol derivatives via iridium or rhodium catalysis. Chem Commun (Camb) 2016; 52:958-61. [DOI: 10.1039/c5cc07993d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report highly chemo- and regioselective reductive transpositions of methyl carbonates to furnish olefin products with complementary regioselectivity to that of established Pd-catalysis.
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Affiliation(s)
| | - Bryce N. Thomas
- Department of Chemistry
- University of Alberta
- Edmonton, Canada
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59
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Yang X, Wu D, Lu Z, Sun H, Li A. A mild preparation of alkynes from alkenyl triflates. Org Biomol Chem 2016; 14:5591-4. [DOI: 10.1039/c6ob00345a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein a protocol for preparing alkynes from alkenyl triflates at ambient temperature with LiCl as a promoter.
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Affiliation(s)
- Xiaowen Yang
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
- State Key Laboratory of Bioorganic and Natural Products Chemistry
| | - Dimin Wu
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Zhaohong Lu
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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60
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Pan S, Gao B, Hu J, Xuan J, Xie H, Ding H. Enantioselective Total Synthesis of (+)-Steenkrotin A and Determination of Its Absolute Configuration. Chemistry 2015; 22:959-70. [DOI: 10.1002/chem.201503831] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Saiyong Pan
- Department of Chemistry; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 P.R. China
| | - Beiling Gao
- Department of Chemistry; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 P.R. China
| | - Jialei Hu
- Department of Chemistry; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 P.R. China
| | - Jun Xuan
- Department of Chemistry; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 P.R. China
| | - Hujun Xie
- College of Material; Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
| | - Hanfeng Ding
- Department of Chemistry; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 P.R. China
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61
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Abstract
The total synthesis of epoxyeujindole A, a structurally unusual indole diterpenoid isolated from Eupenicillium javanicum, has been accomplished for the first time. The synthesis features a late-stage cationic cyclization strategy, which took advantage of an electron-rich olefinic substrate. The CDE ring system was assembled via an enantioselective conjugate addition/alkylation, a Luche cyclization, and a Nozaki-Hiyama-Kishi reaction. The heavily substituted A ring was constructed through a Suzuki-Miyaura coupling and a cationic cyclization, and the bridged fused B ring was formed through a Prins reaction.
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Affiliation(s)
- Zhaohong Lu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Hailong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Ming Bian
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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62
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Tang MC, Lin HC, Li D, Zou Y, Li J, Xu W, Cacho RA, Hillenmeyer ME, Garg NK, Tang Y. Discovery of Unclustered Fungal Indole Diterpene Biosynthetic Pathways through Combinatorial Pathway Reassembly in Engineered Yeast. J Am Chem Soc 2015; 137:13724-7. [PMID: 26469304 DOI: 10.1021/jacs.5b06108] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The structural diversity and biological activities of fungal indole diterpenes (IDTs) are generated in large part by the IDT cyclases (IDTCs). Identifying different IDTCs from IDT biosynthetic pathways is therefore important toward understanding how these enzymes introduce chemical diversity from a common linear precursor. However, IDTCs involved in the cyclization of the well-known aflavinine subgroup of IDTs have not been discovered. Here, using Saccharomyces cerevisiae as a heterologous host and a phylogenetically guided enzyme mining approach, we combinatorially assembled IDT biosynthetic pathways using IDTCs homologues identified from different fungal hosts. We identified the genetically standalone IDTCs involved in the cyclization of aflavinine and anominine and produced new IDTs not previously isolated. The cyclization mechanisms of the new IDTCs were proposed based on the yeast reconstitution results. Our studies demonstrate heterologous pathway assembly is a useful tool in the reconstitution of unclustered biosynthetic pathways.
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Affiliation(s)
| | | | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao, Shandong 266003, P. R. China
| | | | - Jian Li
- Stanford Genome Technology Center, Stanford University , Palo Alto, California 94304, United States
| | | | | | - Maureen E Hillenmeyer
- Stanford Genome Technology Center, Stanford University , Palo Alto, California 94304, United States
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63
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Abstract
An enantioselective synthesis of the indole diterpenoid natural product paspaline is disclosed. Critical to this approach was the implementation of stereoselective desymmetrization reactions to assemble key stereocenters of the molecule. The design and execution of these tactics are described in detail, and a thorough analysis of observed outcomes is presented, ultimately providing the title compound in high stereopurity. This synthesis provides a novel template for preparing key stereocenters in this family of molecules, and the reactions developed en route to paspaline present a series of new synthetic disconnections in preparing steroidal natural products.
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Affiliation(s)
- Robert J. Sharpe
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S. Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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64
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Abstract
The total synthesis of both oridamycin A and oridamycin B was accomplished starting from a common synthetic intermediate readily prepared from geranyl acetate. The sequence utilizes an oxidative radical cyclization to construct the trans-decalin ring system, setting three of four contiguous stereocenters in one operation. The carbazole nucleus was forged through a one-pot process entailing acid-promoted dehydration followed by 6π-electrocyclization/aromatization.
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Affiliation(s)
- Adam H Trotta
- Tri-Institutional PhD Program in Chemical Biology, Laboratory for Bioorganic Chemistry, Memorial Sloan Kettering Cancer Center, Sloan Kettering Institute, 1275 York Avenue, New York, New York 10065, United States
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65
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Deng JC, Chen WY, Zhu C, Chuang SC. Multicomponent Reactions of Phosphines, Enynedioates and Cinnamaldimines Give γ-Lactams with a 1,3,5-Hexatriene Moiety for Facile 6π Electrocyclization: Access to Oxindoles, Isatins and Isoxazolinones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401134] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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66
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Sharpe RJ, Johnson JS. A global and local desymmetrization approach to the synthesis of steroidal alkaloids: stereocontrolled total synthesis of paspaline. J Am Chem Soc 2015; 137:4968-71. [PMID: 25856767 PMCID: PMC4409926 DOI: 10.1021/jacs.5b02631] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A stereocontrolled total synthesis of the indole diterpenoid natural product paspaline is described. Key steps include a highly diastereoselective enzymatic desymmetrization, substrate-directed epoxidation, Ireland-Claisen rearrangement, and diastereotopic group selective C-H acetoxylation to assemble the target with excellent stereofidelity. The route and results described herein outline complementary conceptual disconnections in the arena of steroid natural product synthesis.
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Affiliation(s)
- Robert J. Sharpe
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S. Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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67
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Pan S, Xuan J, Gao B, Zhu A, Ding H. Total Synthesis of Diterpenoid Steenkrotin A. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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68
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Pan S, Xuan J, Gao B, Zhu A, Ding H. Total Synthesis of Diterpenoid Steenkrotin A. Angew Chem Int Ed Engl 2015; 54:6905-8. [DOI: 10.1002/anie.201502034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 03/30/2015] [Indexed: 11/09/2022]
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69
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Mulay SV, Gholap SP, Fernandes RA. Formal Synthesis of the Human Rhinovirus 3 C Protease Inhibitor (−)-Thysanone. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sandip V. Mulay
- Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 Maharashtra India
| | - Sachin P. Gholap
- Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 Maharashtra India
| | - Rodney A. Fernandes
- Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 Maharashtra India
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70
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Mukai K, Kasuya S, Nakagawa Y, Urabe D, Inoue M. A convergent total synthesis of ouabagenin. Chem Sci 2015; 6:3383-3387. [PMID: 28706702 PMCID: PMC5490423 DOI: 10.1039/c5sc00212e] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/28/2015] [Indexed: 11/21/2022] Open
Abstract
A convergent total synthesis of ouabagenin, an aglycon of cardenolide glycoside ouabain, was achieved by assembly of the AB-ring, D-ring and butenolide moieties.
A convergent total synthesis of ouabagenin, an aglycon of cardenolide glycoside ouabain, was achieved by assembly of the AB-ring, D-ring and butenolide moieties. The multiply oxygenated cis-decalin structure of the AB-ring was constructed from (R)-perillaldehyde through the Diels–Alder reaction and sequential oxidations. The intermolecular acetal formation of the AB-ring and D-ring fragments, and combination of the intramolecular radical and aldol reactions, assembled the requisite steroidal skeleton in a stereoselective fashion. Finally, stereoselective installation of the C17-butenolide via the Stille coupling and hydrogenation led to ouabagenin.
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Affiliation(s)
- Ken Mukai
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Satoshi Kasuya
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Yuki Nakagawa
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Daisuke Urabe
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan .
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71
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Yang M, Li J, Li A. Total synthesis of clostrubin. Nat Commun 2015; 6:6445. [PMID: 25759087 PMCID: PMC4382683 DOI: 10.1038/ncomms7445] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/29/2015] [Indexed: 01/21/2023] Open
Abstract
Clostrubin is a potent antibiotic against methicillin- and vancomycin-resistant bacteria that was isolated from a strictly anaerobic bacterium Clostridium beijerinckii in 2014. This polyphenol possesses a fully substituted arene moiety on its pentacyclic scaffold, which poses a considerable challenge for chemical synthesis. Here we report the first total synthesis of clostrubin in nine steps (the longest linear sequence). A desymmetrization strategy is exploited based on the inherent structural feature of the natural product. Barton–Kellogg olefination forges the two segments together to form a tetrasubstituted alkene. A photo-induced 6π electrocyclization followed by spontaneous aromatization constructs the hexasubstituted B ring at a late stage. In total, 200 mg of clostrubin are delivered through this approach. Due to rising resistance, efficient routes to new antibiotics is a vital task for human health. Here, the authors report a short, convergent and elegant synthesis of a very recently reported antibiotic, successfully giving access to this material on scale.
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Affiliation(s)
- Ming Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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72
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Wan M, Yao M, Gong JY, Yang P, Liu H, Li A. Synthesis of the tetracyclic core of chlorospermines. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.01.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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73
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Joshi PR, Undeela S, Reddy DD, Singarapu KK, Menon RS. Regioselective Synthesis of Substituted Arenes via Aerobic Oxidative [3 + 3] Benzannulation Reactions of α,β-Unsaturated Aldehydes and Ketones. Org Lett 2015; 17:1449-52. [DOI: 10.1021/acs.orglett.5b00318] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Prabhakar Ramchandra Joshi
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Sridhar Undeela
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Doni Dhanoj Reddy
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Kiran Kumar Singarapu
- Centre
for Nuclear Magnetic Resonance, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Rajeev S. Menon
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
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74
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Xiong X, Zhang D, Li J, Sun Y, Zhou S, Yang M, Shao H, Li A. Synthesis of Indole Terpenoid Mimics through a Functionality-Tolerated Eu(fod)3-Catalyzed Conjugate Addition. Chem Asian J 2015; 10:869-72. [DOI: 10.1002/asia.201403312] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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75
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Total synthesis and antiviral activity of indolosesquiterpenoids from the xiamycin and oridamycin families. Nat Commun 2015; 6:6096. [PMID: 25648883 PMCID: PMC4347019 DOI: 10.1038/ncomms7096] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 12/15/2014] [Indexed: 12/13/2022] Open
Abstract
Indolosesquiterpenoids are a growing class of natural products that exhibit a wide range of biological activities. Here, we report the total syntheses of xiamycin A and oridamycins A and B, indolosesquiterpenoids isolated from Streptomyces. Two parallel strategies were exploited to forge the carbazole core: 6π-electrocyclization/aromatization and indole C2–H bond activation/Heck annulation. The construction of their trans-decalin motifs relied on two diastereochemically complementary radical cyclization reactions mediated by Ti(III) and Mn(III), respectively. The C23 hydroxyl of oridamycin B was introduced by an sp3 C–H bond oxidation at a late stage. On the basis of the chemistry developed, the dimeric congener dixiamycin C has been synthesized for the first time. Evaluation of the antiviral activity of these compounds revealed that xiamycin A is a potent agent against herpes simplex virus–1 (HSV-1) in vitro. Using a single strategy to make a number of related intermediates is a useful strategy in the total synthesis. Here, the authors report the synthesis of a number of natural products, employing two diastereomerically complementary metal-catalyzed cyclizations as the key step to access a number of frameworks.
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76
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2015; 32:1389-471. [DOI: 10.1039/c5np00032g] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review summarizes the isolation, structure determination, total syntheses and biological activities of simple indole alkaloids and those with a nonrearranged monoterpenoid unit, with literature coverage from 2012 to 2013.
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Affiliation(s)
- Minoru Ishikura
- School of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-Tobetsu
- Japan
| | - Takumi Abe
- School of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-Tobetsu
- Japan
| | - Tominari Choshi
- Graduate School of Pharmacy & Pharmaceutical Sciences
- Faculty of Pharmacy & Pharmaceutical Sciences
- Fukuyama University
- Fukuyama
- Japan
| | - Satoshi Hibino
- Graduate School of Pharmacy & Pharmaceutical Sciences
- Faculty of Pharmacy & Pharmaceutical Sciences
- Fukuyama University
- Fukuyama
- Japan
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77
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Goetz AE, Shah TK, Garg NK. Pyridynes and indolynes as building blocks for functionalized heterocycles and natural products. Chem Commun (Camb) 2015; 51:34-45. [DOI: 10.1039/c4cc06445c] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This feature article showcases the use of pyridynes and indolynes to construct functionalized heterocycles and complex natural products.
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Affiliation(s)
- Adam E. Goetz
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Tejas K. Shah
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Neil K. Garg
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
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78
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Yang Y, Bai Y, Sun S, Dai M. Biosynthetically inspired divergent approach to monoterpene indole alkaloids: total synthesis of mersicarpine, leuconodines B and D, leuconoxine, melodinine E, leuconolam, and rhazinilam. Org Lett 2014; 16:6216-9. [PMID: 25412144 PMCID: PMC4260631 DOI: 10.1021/ol503150c] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Indexed: 01/08/2023]
Abstract
Inspired by their potential biosynthesis, we have developed divergent total syntheses of seven monoterpene indole alkaloids including mersicarpine, leuconodines B and D, leuconoxine, melodinine E, leuconolam, and rhazinilam, and one unnatural analogue with an unprecedented structural skeleton. The key steps involve a Witkop-Winterfeldt oxidative indole cleavage followed by transannular cyclization. The transannular cyclization product was then converted to the corresponding structural skeletons by pairing its functional groups into different reaction modes.
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Affiliation(s)
| | | | - Siyuan Sun
- Department
of Chemistry and
Center for Cancer Research, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
| | - Mingji Dai
- Department
of Chemistry and
Center for Cancer Research, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
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79
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Li J, Yang P, Yao M, Deng J, Li A. Total Synthesis of Rubriflordilactone A. J Am Chem Soc 2014; 136:16477-80. [DOI: 10.1021/ja5092563] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jian Li
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Peng Yang
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ming Yao
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jun Deng
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ang Li
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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80
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81
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Bürki C, Bonjoch J, Bradshaw B, Villa G, Renaud P. Total Synthesis of Aignopsanes, A Class of Sesquiterpenes: (+)-Aignopsanoic Acid A, (−)-Methyl Aignopsanoate A, and (−)-Isoaignopsanoic A. Chemistry 2014; 21:395-401. [DOI: 10.1002/chem.201404766] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Indexed: 11/05/2022]
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82
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Lu Z, Yang M, Chen P, Xiong X, Li A. Total Synthesis of Hapalindole-Type Natural Products. Angew Chem Int Ed Engl 2014; 53:13840-4. [DOI: 10.1002/anie.201406626] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Indexed: 01/28/2023]
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83
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Lu Z, Yang M, Chen P, Xiong X, Li A. Total Synthesis of Hapalindole-Type Natural Products. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406626] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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84
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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85
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Villa G, Bradshaw B, Bürki C, Bonjoch J, Renaud P. Synthesis of the all-cis-trimethyldecalin fragment of unusual terpenes by radical-mediated protonolysis of an alkylboron derivative. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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86
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87
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Sun Y, Chen P, Zhang D, Baunach M, Hertweck C, Li A. Bioinspired total synthesis of sespenine. Angew Chem Int Ed Engl 2014; 53:9012-6. [PMID: 24962149 DOI: 10.1002/anie.201404191] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Indexed: 11/12/2022]
Abstract
The first total synthesis of sespenine, a rare indole sesquiterpenoid from a mangrove endophyte, has been accomplished. A bioinspired aza-Prins/Friedel-Crafts/retro Friedel-Crafts cascade reaction assembles the bridged tetrahydroquinoline core. Further investigations on the aza-Prins cyclization imply that the C3 configuration of the hydroxyindolenine intermediate is crucial to the biosynthesis of sespenine and its congener xiamycin A.
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Affiliation(s)
- Yu Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
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88
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Xue F, Peng P, Shi J, Zhong M, Wang Z. Synthesis of 4-Diarylamino-3-iodo-2(5H)-furanones via the Simultaneous α-Iodination and N β -Arylation by an Efficient Difunctionalizable Transfer Reagent PhI(OAc)2. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.879899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Fuling Xue
- a School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education , Guangzhou , China
| | - Pai Peng
- a School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education , Guangzhou , China
| | - Jie Shi
- a School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education , Guangzhou , China
| | - Mingli Zhong
- a School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education , Guangzhou , China
| | - Zhaoyang Wang
- a School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education , Guangzhou , China
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89
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Goetz AE, Silberstein AL, Corsello MA, Garg NK. Concise enantiospecific total synthesis of tubingensin A. J Am Chem Soc 2014; 136:3036-9. [PMID: 24524351 PMCID: PMC3985696 DOI: 10.1021/ja501142e] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
![]()
We report the enantiospecific total
synthesis of (+)-tubingensin
A. Our synthesis features an aryne cyclization to efficiently introduce
the vicinal quaternary stereocenters of the natural product and proceeds
in only nine steps (longest linear sequence) from known compounds.
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Affiliation(s)
- Adam E Goetz
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
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90
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Hale KJ. Terpenoid- and shikimate-derived natural product total synthesis: a personal analysis and commentary on the importance of the papers that appear in this virtual issue. Org Lett 2014; 15:3181-98. [PMID: 23826672 DOI: 10.1021/ol401788y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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91
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Zeng C, Zheng C, Zhao J, Zhao G. Divergent total syntheses of (-)-lycopladine D, (+)-fawcettidine, and (+)-lycoposerramine Q. Org Lett 2013; 15:5846-9. [PMID: 24188014 DOI: 10.1021/ol402906y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enantioselective total syntheses of (+)-fawcettidine and (+)-lycoposerramine Q as well as the first total synthesis of (-)-lycopladine D from a common intermediate have been accomplished by a divergent path. The common intermediate was derived from a Hajos-Parrish-like diketone by a stereoselective Birch reduction and a Suzuki coupling. The synthesis of (-)-lycopladine D featured an allylic oxidation and a biomimetic aminoketalization while the route to (+)-fawcettidine and (+)-lycoposerramine Q highlighted an oxidative rearrangement.
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Affiliation(s)
- Chen Zeng
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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92
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Hou SH, Tu YQ, Liu L, Zhang FM, Wang SH, Zhang XM. Divergent and Efficient Syntheses of theLycopodiumAlkaloids (−)-Lycojaponicumin C, (−)-8-Deoxyserratinine, (+)-Fawcettimine, and (+)-Fawcettidine. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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93
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Hou SH, Tu YQ, Liu L, Zhang FM, Wang SH, Zhang XM. Divergent and Efficient Syntheses of theLycopodiumAlkaloids (−)-Lycojaponicumin C, (−)-8-Deoxyserratinine, (+)-Fawcettimine, and (+)-Fawcettidine. Angew Chem Int Ed Engl 2013; 52:11373-6. [DOI: 10.1002/anie.201306369] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Indexed: 11/10/2022]
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94
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Sun Y, Li R, Zhang W, Li A. Total Synthesis of Indotertine A and Drimentines A, F, and G. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303334] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yu Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
| | - Ruofan Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
| | - Wenhao Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
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95
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Sun Y, Li R, Zhang W, Li A. Total synthesis of indotertine A and drimentines A, F, and G. Angew Chem Int Ed Engl 2013; 52:9201-4. [PMID: 23857819 DOI: 10.1002/anie.201303334] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 06/20/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Yu Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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96
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Lu Z, Li Y, Deng J, Li A. Total synthesis of the Daphniphyllum alkaloid daphenylline. Nat Chem 2013; 5:679-84. [DOI: 10.1038/nchem.1694] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 05/03/2013] [Indexed: 02/08/2023]
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97
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Singh N, Allam BK, Raghuvanshi DS, Singh KN. An Efficient Tetrabutylammonium Fluoride (TBAF)-Catalyzed Three-Component Synthesis of 3-Substituted Indole Derivatives under Solvent-Free Conditions. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300162] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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98
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Zhang JJ, Yan CS, Peng Y, Luo ZB, Xu XB, Wang YW. Total synthesis of (±)-sacidumlignans D and A through Ueno–Stork radical cyclization reaction. Org Biomol Chem 2013; 11:2498-513. [DOI: 10.1039/c3ob00053b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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