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Yamaguchi A, Obiya N, Arichi N, Oishi S, Ohno H, Inuki S. Synthesis of labionin and avionin precursors via a nitrogen-centred-radical-triggered 1,5-HAT reaction of Tris derivatives. Org Biomol Chem 2024; 22:2049-2055. [PMID: 38362729 DOI: 10.1039/d3ob02037a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Labionin and avionin are non-proteinogenic amino acids containing 2,4-diamino-2-(mercaptomethyl)pentanedioic acid that forms the core structures of spirocyclic peptides including labyrinthopeptin A2 and microvionin, respectively. We have developed a diastereoselective synthetic route to labionin and avionin precursors. This route highlights the formation of the quaternary carbon stereocenter of an α,α-disubstituted amino acid via a regioselective 1,5-HAT reaction of a Tris derivative.
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Affiliation(s)
- Ayuta Yamaguchi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Naoki Obiya
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Norihito Arichi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
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2
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Ichikawa Y, Kinutani T, Sakogawa Y, Nakanishi K, Ochi R, Hosokawa S, Masuda T. Stereocontrolled Synthesis of Nitrogen-Substituted Quaternary Stereogenic Centers: Lessons from a Synthetic Route to the Core Structure of Sphingofungin E. HETEROCYCLES 2023. [DOI: 10.3987/com-23-14817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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3
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Yamashita K, Hirokawa R, Ichikawa M, Hisanaga T, Nagao Y, Takita R, Watanabe K, Kawato Y, Hamashima Y. Mechanistic Details of Asymmetric Bromocyclization with BINAP Monoxide: Identification of Chiral Proton-Bridged Bisphosphine Oxide Complex and Its Application to Parallel Kinetic Resolution. J Am Chem Soc 2022; 144:3913-3924. [PMID: 35226811 DOI: 10.1021/jacs.1c11816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The mechanism of our previously reported catalytic asymmetric bromocyclization reactions using 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (BINAP) monoxide was examined in detail by the means of control experiments, NMR studies, X-ray structure analysis, and CryoSpray electrospray ionization mass spectrometry (ESI-MS) analysis. The chiral BINAP monoxide was transformed to a key catalyst precursor, proton-bridged bisphosphine oxide complex (POHOP·Br), in the presence of N-bromosuccinimide (NBS) and contaminating water. The thus-formed POHOP further reacts with NBS to afford BINAP dioxide and molecular bromine (Br2) simultaneously in equimolar amounts. While the resulting Br2 is activated by NBS to form a more reactive brominating reagent (Br2─NBS), BINAP dioxide serves as a bifunctional catalyst, acting as both a Lewis base that reacts with Br2─NBS to form a chiral brominating agent (P═O+─Br) and also as a Brønsted base for the activation of the substrate. By taking advantage of this novel concerted Lewis/Brønsted base catalysis by BINAP dioxide, we achieved the first regio- and chemodivergent parallel kinetic resolutions (PKRs) of racemic unsymmetrical bisallylic amides via bromocyclization.
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Affiliation(s)
- Kenji Yamashita
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ryo Hirokawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Mamoru Ichikawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tatsunari Hisanaga
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshihiro Nagao
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ryo Takita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kohei Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuji Kawato
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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4
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Raguž L, Peng C, Kaiser M, Görls H, Beemelmanns C. A Modular Approach to the Antifungal Sphingofungin Family: Concise Total Synthesis of Sphingofungin A and C. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Luka Raguž
- Chemical Biology of Microbe–Host Interactions Leibniz Institute for Natural Product Research and Infection Biology Beutenbergstrasse 11A 07745 Jena Germany
| | - Chia‐Chi Peng
- Chemical Biology of Microbe–Host Interactions Leibniz Institute for Natural Product Research and Infection Biology Beutenbergstrasse 11A 07745 Jena Germany
| | - Marcel Kaiser
- Parasite Chemotherapy Swiss Tropical and Public Health Institute Socinstrasse 57 4002 Basel Switzerland
- University of Basel Petersplatz 1 4003 Basel Switzerland
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry Friedrich-Schiller-University Lessingstrasse 8 07743 Jena Germany
| | - Christine Beemelmanns
- Chemical Biology of Microbe–Host Interactions Leibniz Institute for Natural Product Research and Infection Biology Beutenbergstrasse 11A 07745 Jena Germany
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5
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Abstract
The complex and intriguing structures of the antibiotics amycolamicin and kibdelomycin are herein confirmed through total synthesis. Careful titration of the synthetic products reveals that kibdelomycin is the salt form of amycolamicin. This synthesis employs a highly convergent strategy, which provides a modular approach for further SAR studies of this class of antibiotics.
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Affiliation(s)
- Shaoqiang Yang
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Chenglong Chen
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Jie Chen
- National Institute of Biological Sciences, Beijing, 102206, China.,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China
| | - Chao Li
- National Institute of Biological Sciences, Beijing, 102206, China.,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China
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6
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Raguž L, Peng CC, Kaiser M, Görls H, Beemelmanns C. A Modular Approach to the Antifungal Sphingofungin Family: Concise Total Synthesis of Sphingofungin A and C. Angew Chem Int Ed Engl 2021; 61:e202112616. [PMID: 34677894 PMCID: PMC9300042 DOI: 10.1002/anie.202112616] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/21/2021] [Indexed: 12/17/2022]
Abstract
Sphingofungins are fungal natural products known to inhibit the biosynthesis of sphingolipids which play pivotal roles in various cell functions. Here, we report a short and flexible synthetic approach towards the sphingofungin family. Key step of the synthesis was a decarboxylative cross‐coupling reaction of chiral sulfinyl imines with a functionalized tartaric acid derivative, which yielded the core motif of sphingofungins carrying four consecutive stereocenters and a terminal double bond. Subsequent metathesis reaction allowed for the introduction of different side chains of choice resulting in a total of eight sphingofungins, including for the first time sphingofungin C (eight steps from commercially available protected tartaric acid with an overall yield of 6 %) and sphingofungin A (ten steps). All newly synthesized derivatives were tested for their antifungal, cell‐proliferative and antiparasitic activity unraveling their structure–activity relations.
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Affiliation(s)
- Luka Raguž
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Beutenbergstrasse 11A, 07745, Jena, Germany
| | - Chia-Chi Peng
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Beutenbergstrasse 11A, 07745, Jena, Germany
| | - Marcel Kaiser
- Parasite Chemotherapy, Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002, Basel, Switzerland.,University of Basel, Petersplatz 1, 4003, Basel, Switzerland
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller-University, Lessingstrasse 8, 07743, Jena, Germany
| | - Christine Beemelmanns
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Beutenbergstrasse 11A, 07745, Jena, Germany
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7
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Inuki S, Ohno H. Total Syntheses of Myriocin, Mycestericins and Sphingofungin E: Sphingosine Analogues Containing a β, β′-Dihydroxy α-Amino Acid Framework. CHEM LETT 2021. [DOI: 10.1246/cl.210133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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Ohmi K, Miura Y, Nakao Y, Goto A, Yoshimura S, Ouchi H, Inai M, Asakawa T, Yoshimura F, Kondo M, Kan T. Pactamycin and Its Derivatives: Improved Synthesis Route: Pactamycin and Its Derivatives: Improved Synthesis Route. European J Org Chem 2020; 2020:488-91. [DOI: 10.1002/ejoc.201901747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Jacková D, Brunderová M, Fábian M, Martinková M, Gonda J, Pilátová MB. Synthesis and anticancer profile of novel sphingoid base-like compounds with a quaternary stereocentre. Carbohydr Res 2019; 487:107862. [PMID: 31734523 DOI: 10.1016/j.carres.2019.107862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 11/30/2022]
Abstract
The synthesis of novel sphingoid base-like compounds with a quaternary stereocentre was achieved in a sequence featuring [3,3]-sigmatropic rearrangements and olefin cross-metathesis transformation as the key reaction steps, which were accompanied by the rational selection of suitable functional group transformations. The stereochemistry of the desired tetra-substituted carbon bearing nitrogen functionality was determined via NOESY experiments of the advanced oxazolidine-2-thiones. Cell viability experiments revealed significant antiproliferative/cytotoxic activity of the target compounds 7, ent-7 and 29 against the Jurkat cell line, with the IC50 values of 6.6 μM, 5.6 μM and 6.1 μM, respectively.
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Affiliation(s)
- Dominika Jacková
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Mária Brunderová
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Martin Fábian
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Miroslava Martinková
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic.
| | - Jozef Gonda
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Martina Bago Pilátová
- Institute of Pharmacology, Faculty of Medicine, P.J. Šafárik University, SNP 1, 040 66, Košice, Slovak Republic
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10
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Kan T, Nagasaka Y, Asakawa T, Shintaku S, Masuda A, Matsumura K, Inai M, Ishikawa Y, Egi M, Hamashima Y. Consice Synthesis of TAN1251C. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Sugai T, Usui S, Tsuzaki S, Oishi H, Yasushima D, Hisada S, Fukuyasu T, Oishi T, Sato T, Chida N. Synthesis of β-Hydroxy-α,α-disubstituted Amino Acids through the Orthoamide-Type Overman Rearrangement of an α,β-Unsaturated Ester and Stereodivergent Intramolecular SN2′ Reaction: Development and Application to the Total Synthesis of Sphingofungin F. BCSJ 2018. [DOI: 10.1246/bcsj.20170408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tomoya Sugai
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Shunme Usui
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Shun Tsuzaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Hiroki Oishi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Daichi Yasushima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Shoko Hisada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takahiro Fukuyasu
- 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
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12
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13
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Nagao Y, Hisanaga T, Utsumi T, Egami H, Kawato Y, Hamashima Y. Enantioselective Synthesis of Nelfinavir via Asymmetric Bromocyclization of Bisallylic Amide. J Org Chem 2018; 83:7290-7295. [DOI: 10.1021/acs.joc.8b00039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yoshihiro Nagao
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tatsunari Hisanaga
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takahiro Utsumi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiromichi Egami
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuji Kawato
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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14
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Nagao Y, Hisanaga T, Egami H, Kawato Y, Hamashima Y. Desymmetrization of Bisallylic Amides through Catalytic Enantioselective Bromocyclization with BINAP Monoxide. Chemistry 2017; 23:16758-16762. [PMID: 29044749 DOI: 10.1002/chem.201704847] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 01/12/2023]
Abstract
We report the first desymmetrization of bisallylic amides by enantioselective bromocyclization with BINAP monoxide as a catalyst. Depending upon the substitution pattern of the alkene moieties, densely functionalized, optically active oxazoline or dihydrooxazine compounds were obtained in a highly stereoselective manner. The remaining alkene moiety was subjected to various functional group manipulations to afford a diverse array of chiral molecules with multiple stereogenic centers.
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Affiliation(s)
- Yoshihiro Nagao
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Tatsunari Hisanaga
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Hiromichi Egami
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Yuji Kawato
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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15
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Nagasaka Y, Shintaku S, Matsumura K, Masuda A, Asakawa T, Inai M, Egi M, Hamashima Y, Ishikawa Y, Kan T. Total Synthesis of TAN1251C via Diastereoselective Construction of the Azaspiro Skeleton. Org Lett 2017; 19:3839-3842. [PMID: 28661151 DOI: 10.1021/acs.orglett.7b01718] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient total synthesis of TAN1251C was accomplished by employing a Ugi four-component accumulation reaction and a Dieckmann condensation to construct the spiro-fused cyclohexanone and γ-lactam ring. Diastereoselective reduction by side-chain-controlled hydrogenation of enamide 15 or Zn reduction of oxime 23 enabled construction of the amino group with the desired stereochemistry.
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Affiliation(s)
- Yosuke Nagasaka
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Sayaka Shintaku
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kosuke Matsumura
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Akitaka Masuda
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tomohiro Asakawa
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshinobu Ishikawa
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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16
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Abstract
Total synthesis of sphingofungin E and 4,5-di-epi-sphingofungin E was achieved from an intermediate same as that of myriocin and mycestericin D via antipodal stereoselective dihydroxylations.
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Affiliation(s)
- Narumi Noda
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Hisanori Nambu
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Tomoya Fujiwara
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Takayuki Yakura
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
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17
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Goto A, Yoshimura S, Nakao Y, Inai M, Asakawa T, Egi M, Hamashima Y, Kondo M, Kan T. Synthetic Study on Pactamycin: Stereoselective Synthesis of the Cyclopentane Core Framework. Org Lett 2017; 19:3358-3361. [PMID: 28604005 DOI: 10.1021/acs.orglett.7b01257] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cyclopentane core framework 23 of pactamycin (1) was synthesized in 14 steps from symmetric cyclohexadiene 11. Our synthetic strategy features Rh-mediated catalytic desymmetrization of 10 via aziridination and then regioselective ring-opening reaction of sulfonylaziridine 9 with NaN3, ring-contraction of cyclohexene 14 by ozonolysis followed by intramolecular aldol reaction, and stereoselective construction of the sequential tetrasubstituted carbons by dihydroxylation and methylation reaction. Stereospecific incorporation of amine on tetrasubstituted carbon was achieved by Curtius rearrangement and subsequent carbamide formation.
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Affiliation(s)
- Atsumi Goto
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Satoshi Yoshimura
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuta Nakao
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tomohiro Asakawa
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Mitsuru Kondo
- Graduate School of Science and Technology, Shizuoka University , 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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18
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Fernandes RA, Kattanguru P, Gholap SP, Chaudhari DA. Recent advances in the Overman rearrangement: synthesis of natural products and valuable compounds. Org Biomol Chem 2017; 15:2672-2710. [DOI: 10.1039/c6ob02625g] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This review documents the reports since 2005 on the Overman rearrangement, an important C–N bond forming reaction that has been profoundly used in the synthesis of natural products, synthetic intermediates, building blocks and valuable compounds.
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Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Pullaiah Kattanguru
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Sachin P. Gholap
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Dipali A. Chaudhari
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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Kawato Y, Ono H, Kubota A, Nagao Y, Morita N, Egami H, Hamashima Y. Highly Enantioselective Bromocyclization of Allylic Amides with a P/P=O Double-Site Lewis Base Catalyst. Chemistry 2016; 22:2127-2133. [DOI: 10.1002/chem.201503153] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Indexed: 01/10/2023]
Affiliation(s)
- Yuji Kawato
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Hiromi Ono
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Akino Kubota
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Yoshihiro Nagao
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Naoki Morita
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Hiromichi Egami
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
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21
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Tsuzaki S, Usui S, Oishi H, Yasushima D, Fukuyasu T, Oishi T, Sato T, Chida N. Total Synthesis of Sphingofungin F by Orthoamide-Type Overman Rearrangement of an Unsaturated Ester. Org Lett 2015; 17:1704-7. [DOI: 10.1021/acs.orglett.5b00475] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shun Tsuzaki
- Department
of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Shunme Usui
- Department
of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Hiroki Oishi
- Department
of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Daichi Yasushima
- Department
of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takahiro Fukuyasu
- 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
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Abstract
A highly enantioselective bromocyclization of allylic amides with N-bromosuccinimide (NBS) was developed with DTBM-BINAP as a catalyst, affording chiral oxazolines with a tetrasubstituted carbon center in high yield with up to 99% ee. By utilizing the bromo substituent as a handle, the obtained compounds were converted to synthetically useful chiral building blocks.
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Affiliation(s)
- Yuji Kawato
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Park SH, Jin X, Kang JC, Jung C, Kim SS, Kim SS, Lee KY, Ham WH. Chirality extension of an oxazine building block en route to total syntheses of (+)-hyacinthacine A2 and sphingofungin B. Org Biomol Chem 2015; 13:4539-50. [DOI: 10.1039/c5ob00251f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Concise total syntheses of (+)-hyacinthacine A2 and sphingofungin B were achieved by palladium(0)-catalyzed intramolecular oxazine formation and diastereoselective nucleophilic additions.
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Affiliation(s)
- Seok-Hwi Park
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Xiangdan Jin
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Jong-Cheol Kang
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Changyoung Jung
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Seong-Soo Kim
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Sung-Soo Kim
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Kee-Young Lee
- Yonsung Fine Chemicals Co
- Ltd
- Hwaseong 445-944, Republic of Korea
| | - Won-Hun Ham
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
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Tsuji T, Suzuki K, Nakamura T, Nishi T. Synthesis of a chiral phosphonium salt for the preparation of α-substituted alaninol derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hirooka Y, Ikeuchi K, Kawamoto Y, Akao Y, Furuta T, Asakawa T, Inai M, Wakimoto T, Fukuyama T, Kan T. Enantioselective Synthesis of SB-203207. Org Lett 2014; 16:1646-9. [DOI: 10.1021/ol5002973] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasuo Hirooka
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kazutada Ikeuchi
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuichiro Kawamoto
- Graduate
School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Yusuke Akao
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takumi Furuta
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tomohiro Asakawa
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshiyuki Wakimoto
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
- Graduate
School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Tohru Fukuyama
- Graduate
School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
- Graduate
School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Toshiyuki Kan
- School
of Pharmaceutical Sciences, University of Shizuoka and Global COE Program, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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