1
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Zhang Y, Szostak M. Synthesis of Natural Products by C-H Functionalization of Heterocycless. Chemistry 2022; 28:e202104278. [PMID: 35089624 PMCID: PMC9035081 DOI: 10.1002/chem.202104278] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Indexed: 12/15/2022]
Abstract
Total synthesis is considered by many as the finest combination of art and science. During the last decades, several concepts were proposed for achieving the perfect vision of total synthesis, such as atom economy, step economy, or redox economy. In this context, C-H functionalization represents the most powerful platform that has emerged in the last years, empowering rapid synthesis of complex natural products and enabling diversification of bioactive scaffolds based on natural product architectures. In this review, we present an overview of the recent strategies towards the total synthesis of heterocyclic natural products enabled by C-H functionalization. Heterocycles represent the most common motifs in drug discovery and marketed drugs. The implementation of C-H functionalization of heterocycles enables novel tactics in the construction of core architectures, but also changes the logic design of retrosynthetic strategies and permits access to natural product scaffolds with novel and enhanced biological activities.
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Affiliation(s)
- Yang Zhang
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA
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2
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Li Z, Zhao F, Ou W, Huang P, Wang X. Asymmetric Deoxygenative Alkynylation of Tertiary Amides Enabled by Iridium/Copper Bimetallic Relay Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhaokun Li
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Feng Zhao
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wei Ou
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Pei‐Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- School of Chemistry and Materials Science Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences 1 Sub-lane Xiangshan Hangzhou 310024 China
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3
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Li Z, Zhao F, Ou W, Huang PQ, Wang X. Asymmetric Deoxygenative Alkynylation of Tertiary Amides Enabled by Iridium/Copper Bimetallic Relay Catalysis. Angew Chem Int Ed Engl 2021; 60:26604-26609. [PMID: 34596947 DOI: 10.1002/anie.202111029] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Indexed: 12/15/2022]
Abstract
A variety of inert tertiary amides have been successfully transformed into synthetically important chiral propargylamines in high yields with good to excellent enantioselectivities via a relayed sequence of Ir catalyzed partial reduction and Cu/GARPHOS catalyzed asymmetric alkynylation with terminal alkynes. The reaction was readily extended to some drug molecules and the transformations of representative products have been demonstrated, thus attesting the practical utilities and the robust nature of the protocol.
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Affiliation(s)
- Zhaokun Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Feng Zhao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Wei Ou
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
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4
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Matheau‐Raven D, Dixon DJ. General α-Amino 1,3,4-Oxadiazole Synthesis via Late-Stage Reductive Functionalization of Tertiary Amides and Lactams*. Angew Chem Int Ed Engl 2021; 60:19725-19729. [PMID: 34191400 PMCID: PMC8457168 DOI: 10.1002/anie.202107536] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Indexed: 01/25/2023]
Abstract
An iridium-catalyzed reductive three-component coupling reaction for the synthesis of medicinally relevant α-amino 1,3,4-oxadiazoles from abundant tertiary amides or lactams, carboxylic acids, and (N-isocyanimino) triphenylphosphorane, is described. Proceeding under mild conditions using (<1 mol %) Vaska's complex (IrCl(CO)(PPh3 )2 ) and tetramethyldisiloxane to access the key reactive iminium ion intermediates, a broad range of α-amino 1,3,4-oxadiazole architectures were accessed from carboxylic acid feedstock coupling partners. Extension to α-amino heterodiazole synthesis was readily achieved by exchanging the carboxylic acid coupling partner for C-, S-, or N-centered Brønsted acids, and provided rapid and modular access to these desirable, yet difficult-to-access, heterocycles. The high chemoselectivity of the catalytic reductive activation step allowed late-stage functionalization of 10 drug molecules, including the synthesis of heterodiazole-fused drug-drug conjugates.
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Affiliation(s)
- Daniel Matheau‐Raven
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordUK
| | - Darren J. Dixon
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordUK
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5
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Matheau‐Raven D, Dixon DJ. General α‐Amino 1,3,4‐Oxadiazole Synthesis via Late‐Stage Reductive Functionalization of Tertiary Amides and Lactams**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Daniel Matheau‐Raven
- Chemistry Research Laboratory Department of Chemistry University of Oxford 12 Mansfield Road Oxford UK
| | - Darren J. Dixon
- Chemistry Research Laboratory Department of Chemistry University of Oxford 12 Mansfield Road Oxford UK
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6
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García‐Garrido SE, Presa Soto A, Hevia E, García‐Álvarez J. Advancing Air‐ and Moisture‐Compatible s‐Block Organometallic Chemistry Using Sustainable Solvents. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100347] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sergio E. García‐Garrido
- Laboratorio de Compuestos Organometálicos y Catálisis Departamento de Química Orgánica e Inorgánica (IUQOEM) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad de Oviedo 33071 Oviedo Spain
| | - Alejandro Presa Soto
- Laboratorio de Compuestos Organometálicos y Catálisis Departamento de Química Orgánica e Inorgánica (IUQOEM) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad de Oviedo 33071 Oviedo Spain
| | - Eva Hevia
- Departement für Chemie, Biochemie und Pharmazie (DCBP) Universität Bern Freiestrasse 3 3012 Bern Switzerland
| | - Joaquín García‐Álvarez
- Laboratorio de Compuestos Organometálicos y Catálisis Departamento de Química Orgánica e Inorgánica (IUQOEM) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad de Oviedo 33071 Oviedo Spain
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7
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Guo Z, Bao R, Li Y, Li Y, Zhang J, Tang Y. Tailored Synthesis of Skeletally Diverse Stemona Alkaloids through Chemoselective Dyotropic Rearrangements of β-Lactones. Angew Chem Int Ed Engl 2021; 60:14545-14553. [PMID: 33848039 DOI: 10.1002/anie.202102614] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Indexed: 12/13/2022]
Abstract
The collective synthesis of skeletally diverse Stemona alkaloids featuring tailored dyotropic rearrangements of β-lactones as key elements is described. Specifically, three typical 5/7/5 tricyclic skeletons associated with stemoamide, tuberostemospiroline and parvistemonine were first accessed through chemoselective dyotropic rearrangements of β-lactones involving alkyl, hydrogen, and aryl migration, respectively. By the rational manipulation of substrate structures and reaction conditions, these dyotropic rearrangements proceeded with excellent efficiency, good chemoselectivity and high stereospecificity. Furthermore, several polycyclic Stemona alkaloids, including saxorumamide, isosaxorumamide, stemonine and bisdehydroneostemoninine, were obtained from the aforementioned tricyclic skeletons through late-stage derivatizations. A novel visible-light photoredox-catalyzed formal [3+2] cycloaddition was also developed, which offers a valuable tool for accessing oxaspirobutenolide and related scaffolds.
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Affiliation(s)
- Zhen Guo
- School of Pharmaceutical Sciences, MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Ruiyang Bao
- School of Pharmaceutical Sciences, MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Yuanhe Li
- School of Pharmaceutical Sciences, MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Yunshan Li
- School of Pharmaceutical Sciences, MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Jingyang Zhang
- School of Pharmaceutical Sciences, MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Yefeng Tang
- School of Pharmaceutical Sciences, MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
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8
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Guo Z, Bao R, Li Y, Li Y, Zhang J, Tang Y. Tailored Synthesis of Skeletally Diverse
Stemona
Alkaloids through Chemoselective Dyotropic Rearrangements of β‐Lactones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102614] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhen Guo
- School of Pharmaceutical Sciences MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Ruiyang Bao
- School of Pharmaceutical Sciences MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Yuanhe Li
- School of Pharmaceutical Sciences MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Yunshan Li
- School of Pharmaceutical Sciences MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Jingyang Zhang
- School of Pharmaceutical Sciences MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Yefeng Tang
- School of Pharmaceutical Sciences MOE Key Laboratory of, Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
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9
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Podunavac M, Mailyan AK, Jackson JJ, Lovy A, Farias P, Huerta H, Molgó J, Cardenas C, Zakarian A. Scalable Total Synthesis, IP3R Inhibitory Activity of Desmethylxestospongin B, and Effect on Mitochondrial Function and Cancer Cell Survival. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maša Podunavac
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Artur K. Mailyan
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Jeffrey J. Jackson
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Alenka Lovy
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
| | - Paula Farias
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
| | - Hernan Huerta
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
| | - Jordi Molgó
- Université Paris-Saclay CEA Institut des Sciences du Vivant Frédéric Joliot ERL CNRS n 9004 Département Médicaments et Technologies pour la Santé Service d'Ingéniere Moléculaire pour Santé (SIMoS) Batiment 152, Point courrier 24 91191 Gif-sur-Yvette France
| | - Cesar Cardenas
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
- The Buck Institute for Research on Aging Novato CA USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
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10
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Podunavac M, Mailyan AK, Jackson JJ, Lovy A, Farias P, Huerta H, Molgó J, Cardenas C, Zakarian A. Scalable Total Synthesis, IP3R Inhibitory Activity of Desmethylxestospongin B, and Effect on Mitochondrial Function and Cancer Cell Survival. Angew Chem Int Ed Engl 2021; 60:11278-11282. [PMID: 33751770 DOI: 10.1002/anie.202102259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Indexed: 11/05/2022]
Abstract
The scalable synthesis of the oxaquinolizidine marine natural product desmethylxestospongin B is based on the early application of Ireland-Claisen rearrangement, macrolactamization, and a late-stage installation of the oxaquinolizidine units by lactam reduction. The synthesis serves as the source of material to investigate calcium signaling and its effect on mitochondrial metabolism in various cell types, including cancer cells.
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Affiliation(s)
- Maša Podunavac
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Artur K Mailyan
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Jeffrey J Jackson
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Alenka Lovy
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
| | - Paula Farias
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
| | - Hernan Huerta
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
| | - Jordi Molgó
- Université Paris-Saclay, CEA, Institut des Sciences du Vivant Frédéric Joliot, ERL CNRS n 9004, Département Médicaments et Technologies pour la Santé, Service d'Ingéniere Moléculaire pour Santé (SIMoS), Batiment 152, Point courrier 24, 91191, Gif-sur-Yvette, France
| | - Cesar Cardenas
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA.,Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile.,The Buck Institute for Research on Aging, Novato, CA, USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
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11
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Boit TB, Mehta MM, Kim J, Baker EL, Garg NK. Reductive Arylation of Amides via a Nickel‐Catalyzed Suzuki–Miyaura‐Coupling and Transfer‐Hydrogenation Cascade. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Timothy B. Boit
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Milauni M. Mehta
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Junyong Kim
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Emma L. Baker
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Neil K. Garg
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
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12
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Boit TB, Mehta MM, Kim J, Baker EL, Garg NK. Reductive Arylation of Amides via a Nickel-Catalyzed Suzuki-Miyaura-Coupling and Transfer-Hydrogenation Cascade. Angew Chem Int Ed Engl 2021; 60:2472-2477. [PMID: 33029868 PMCID: PMC7855255 DOI: 10.1002/anie.202012048] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/26/2020] [Indexed: 12/11/2022]
Abstract
We report a means to achieve the addition of two disparate nucleophiles to the amide carbonyl carbon in a single operational step. Our method takes advantage of non-precious-metal catalysis and allows for the facile conversion of amides to chiral alcohols via a one-pot Suzuki-Miyaura cross-coupling/transfer-hydrogenation process. This study is anticipated to promote the development of new transformations that allow for the conversion of carboxylic acid derivatives to functional groups bearing stereogenic centers via cascade processes.
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Affiliation(s)
- Timothy B Boit
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Milauni M Mehta
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Junyong Kim
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Emma L Baker
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Neil K Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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13
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Nakayama A, Nakamura T, Zaima T, Fujimoto S, Karanjit S, Namba K. Concise Total Synthesis of Tronocarpine. Angew Chem Int Ed Engl 2021; 60:635-639. [PMID: 32969565 DOI: 10.1002/anie.202009966] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/09/2020] [Indexed: 11/09/2022]
Abstract
A concise total synthesis of tronocarpine, a chippiine-type indole alkaloid, was accomplished. The key feature of this total synthesis is a one-pot construction of the pentacyclic skeleton containing an azabicyclo[3.3.1]nonane core by tandem cyclization from an indole derivative with all carbon side chains and functional groups. This tandem cyclization consists of α,β-unsaturated aldehyde formation, intramolecular aldol reaction, six-membered lactamization, azide reduction, and seven-membered lactamization. The stereochemical outcome in this tandem cyclization is controlled by the stereocenter at the C14 position. This strategy can be utilized to synthesize other chippiine-type alkaloids with azabicyclo[3.3.1]nonane skeletons.
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Affiliation(s)
- Atsushi Nakayama
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78 Shomachi, Tokushima, Tokushima, 770-8505, Japan
| | - Tenta Nakamura
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78 Shomachi, Tokushima, Tokushima, 770-8505, Japan
| | - Toshihiro Zaima
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78 Shomachi, Tokushima, Tokushima, 770-8505, Japan
| | - Saho Fujimoto
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78 Shomachi, Tokushima, Tokushima, 770-8505, Japan
| | - Sangita Karanjit
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78 Shomachi, Tokushima, Tokushima, 770-8505, Japan
| | - Kosuke Namba
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78 Shomachi, Tokushima, Tokushima, 770-8505, Japan
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14
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Nakayama A, Nakamura T, Zaima T, Fujimoto S, Karanjit S, Namba K. Concise Total Synthesis of Tronocarpine. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Atsushi Nakayama
- Graduate School of Pharmaceutical Sciences Tokushima University 1–78 Shomachi, Tokushima Tokushima 770-8505 Japan
| | - Tenta Nakamura
- Graduate School of Pharmaceutical Sciences Tokushima University 1–78 Shomachi, Tokushima Tokushima 770-8505 Japan
| | - Toshihiro Zaima
- Graduate School of Pharmaceutical Sciences Tokushima University 1–78 Shomachi, Tokushima Tokushima 770-8505 Japan
| | - Saho Fujimoto
- Graduate School of Pharmaceutical Sciences Tokushima University 1–78 Shomachi, Tokushima Tokushima 770-8505 Japan
| | - Sangita Karanjit
- Graduate School of Pharmaceutical Sciences Tokushima University 1–78 Shomachi, Tokushima Tokushima 770-8505 Japan
| | - Kosuke Namba
- Graduate School of Pharmaceutical Sciences Tokushima University 1–78 Shomachi, Tokushima Tokushima 770-8505 Japan
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15
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Yoshida K, Okada K, Ueda H, Tokuyama H. A Concise Enantioselective Total Synthesis of (-)-Deoxoapodine. Angew Chem Int Ed Engl 2020; 59:23089-23093. [PMID: 32896080 DOI: 10.1002/anie.202010759] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Indexed: 12/14/2022]
Abstract
We have established a highly convergent 10-step route for the total synthesis of (-)-deoxoapodine, which is a hexacyclic aspidosperma alkaloid. The quaternary C5 center of the characteristic tetrahydrofuran ring was constructed by a chiral-phosphoric-acid-catalyzed enantioselective bromocycloetherification in a 5-endo fashion and subsequent allylation by using the Keck protocol. Construction of the aspidosperma skeleton features the formation of a nine-membered lactam by a catalytic C-H palladation/alkylation cascade at the indole 2-position and an iron-catalyzed oxidative transannular reaction at a late-stage of the synthesis.
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Affiliation(s)
- Kei Yoshida
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Kosuke Okada
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Hirofumi Ueda
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
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16
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Wang N, Jiang X. Synthetic Approaches to Tricyclic Aminoketones in the Total Synthesis of Aspidosperma and Kopsia Alkaloids. CHEM REC 2020; 21:295-314. [PMID: 33289266 DOI: 10.1002/tcr.202000131] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/13/2022]
Abstract
Aspidosperma and kopsia alkaloids are significant functional molecules because of their potent biological activities. Their intricate structures present an intrinsic synthetic challenge and thus attract significant attention from synthetic organic academic community. Over the past decades, a series of elegant strategies has been developed, in particular, the Stork's original Fischer indolization of tricyclic aminoketones 1. Herein, we report a comprehensive review on various synthetic approaches access to tricyclic aminoketones 1 and provide a practical guidance to readers whose are interested in employing tricyclic aminoketones 1 as versatile building blocks in the realm of total synthesis of aspidosperma, kopsia and structurally related alkaloids.
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Affiliation(s)
- Nengzhong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
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17
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Yoshida K, Okada K, Ueda H, Tokuyama H. A Concise Enantioselective Total Synthesis of (−)‐Deoxoapodine. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010759] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kei Yoshida
- Graduate School of Pharmaceutical Sciences Tohoku University Aoba 6-3, Aramaki Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Kosuke Okada
- Graduate School of Pharmaceutical Sciences Tohoku University Aoba 6-3, Aramaki Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Hirofumi Ueda
- Graduate School of Pharmaceutical Sciences Tohoku University Aoba 6-3, Aramaki Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences Tohoku University Aoba 6-3, Aramaki Aoba-ku Sendai, Miyagi 980-8578 Japan
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18
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Ong DY, Fan D, Dixon DJ, Chiba S. Transition-Metal-Free Reductive Functionalization of Tertiary Carboxamides and Lactams for α-Branched Amine Synthesis. Angew Chem Int Ed Engl 2020; 59:11903-11907. [PMID: 32329555 DOI: 10.1002/anie.202004272] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Indexed: 12/29/2022]
Abstract
A new method for the synthesis of α-branched amines by reductive functionalization of tertiary carboxamides and lactams is described. The process relies on the efficient and controlled reduction of tertiary amides by a sodium hydride/sodium iodide composite, in situ treatment of the resulting anionic hemiaminal with trimethylsilyl chloride and subsequent coupling with nucleophilic reagents including Grignard reagents and tetrabutylammonium cyanide. The new method exhibits broad functional-group compatibility, operates under transition-metal-free reaction conditions, and is suitable for various synthetic applications on both sub-millimole and on multigram scales.
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Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Dongyang Fan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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19
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Varga S, Angyal P, Martin G, Egyed O, Holczbauer T, Soós T. Total Syntheses of (−)‐Minovincine and (−)‐Aspidofractinine through a Sequence of Cascade Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004769] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Szilárd Varga
- Institute of Organic Chemistry Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
| | - Péter Angyal
- Institute of Organic Chemistry Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
| | - Gábor Martin
- Institute of Organic Chemistry Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
| | - Orsolya Egyed
- Instrumentation Center Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
| | - Tamás Holczbauer
- Institute of Organic Chemistry Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
- Instrumentation Center Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
| | - Tibor Soós
- Institute of Organic Chemistry Research Centre for Natural Sciences 2 Magyar tudósok krt. 1117 Budapest Hungary
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20
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Varga S, Angyal P, Martin G, Egyed O, Holczbauer T, Soós T. Total Syntheses of (-)-Minovincine and (-)-Aspidofractinine through a Sequence of Cascade Reactions. Angew Chem Int Ed Engl 2020; 59:13547-13551. [PMID: 32351014 PMCID: PMC7497198 DOI: 10.1002/anie.202004769] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/27/2020] [Indexed: 12/31/2022]
Abstract
We report 8‐step syntheses of (−)‐minovincine and (−)‐aspidofractinine using easily available and inexpensive reagents and catalyst. A key element of the strategy was the utilization of a sequence of cascade reactions to rapidly construct the penta‐ and hexacyclic frameworks. These cascade transformations included organocatalytic Michael‐aldol condensation, a multistep anionic Michael‐SN2 cascade reaction, and Mannich reaction interrupted Fischer indolization. To streamline the synthetic routes, we also investigated the deliberate use of steric effect to secure various chemo‐ and regioselective transformations.
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Affiliation(s)
- Szilárd Varga
- Institute of Organic Chemistry, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary
| | - Péter Angyal
- Institute of Organic Chemistry, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary
| | - Gábor Martin
- Institute of Organic Chemistry, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary
| | - Orsolya Egyed
- Instrumentation Center, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary
| | - Tamás Holczbauer
- Institute of Organic Chemistry, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary.,Instrumentation Center, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary
| | - Tibor Soós
- Institute of Organic Chemistry, Research Centre for Natural Sciences, 2 Magyar tudósok krt., 1117, Budapest, Hungary
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21
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Ong DY, Fan D, Dixon DJ, Chiba S. Transition‐Metal‐Free Reductive Functionalization of Tertiary Carboxamides and Lactams for α‐Branched Amine Synthesis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004272] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Dongyang Fan
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Darren J. Dixon
- Department of Chemistry Chemistry Research Laboratory University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
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22
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Zhang J, Yan Y, Hu R, Li T, Bai W, Yang Y. Enantioselective Total Syntheses of Lyconadins A–E through a Palladium‐Catalyzed Heck‐Type Reaction. Angew Chem Int Ed Engl 2020; 59:2860-2866. [DOI: 10.1002/anie.201912948] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/18/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Jiayang Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Yangtian Yan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Rong Hu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Ting Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Wen‐Ju Bai
- Department of ChemistryStanford University Stanford CA 94305-5080 USA
| | - Yang Yang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
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23
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Zhang J, Yan Y, Hu R, Li T, Bai W, Yang Y. Enantioselective Total Syntheses of Lyconadins A–E through a Palladium‐Catalyzed Heck‐Type Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912948] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jiayang Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Yangtian Yan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Rong Hu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Ting Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
| | - Wen‐Ju Bai
- Department of ChemistryStanford University Stanford CA 94305-5080 USA
| | - Yang Yang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource EvaluationSchool of PharmacyHuazhong University of Science and Technology 13 Hangkong Road Wuhan Hubei 430030 China
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24
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Ou W, Lu GS, An D, Han F, Huang PQ. Two-Step Catalytic Transformation of N
-Benzyllactams to Alkaloids (±)-Solenopsin, (±)-Solenopsin A, and (+)-Julifloridine. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901752] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Guang-Sheng Lu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Dong An
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
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25
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Baráth E, Mejía E. Ein Fest der Wissenschaft inmitten der Natur: Die 54. Bürgenstock‐Konferenz. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eszter Baráth
- Department ChemieZentralforschungsinstitut für KatalyseTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Esteban Mejía
- Leibniz-Institut für Katalyse (LIKAT) Albert-Einstein-Straße 29a 18059 Rostock Deutschland
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26
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Baráth E, Mejía E. A Celebration of Science amidst Nature: The 54th Bürgenstock Conference. Angew Chem Int Ed Engl 2019; 58:17107-17113. [PMID: 31441577 DOI: 10.1002/anie.201906781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Eszter Baráth
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Esteban Mejía
- Leibniz Institute for Catalysis (LIKAT), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
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27
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Liu YP, Zhu CJ, Yu CC, Wang AE, Huang PQ. Tf2
O-Mediated Intermolecular Coupling of Secondary Amides with Enamines or Ketones: A Versatile and Direct Access to β-Enaminones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yong-Peng Liu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian China
| | - Cheng-Jie Zhu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian China
| | - Cun-Cun Yu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian China
| | - Ai-E Wang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian China
- College of Chemistry and Chemical Engineering; State Key Laboratory of Applied Organic Chemistry Lanzhou University; 730000 Lanzhou China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian China
- College of Chemistry and Chemical Engineering; State Key Laboratory of Applied Organic Chemistry Lanzhou University; 730000 Lanzhou China
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28
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Saya JM, Ruijter E, Orru RVA. Total Synthesis of
Aspidosperma
and
Strychnos
Alkaloids through Indole Dearomatization. Chemistry 2019; 25:8916-8935. [DOI: 10.1002/chem.201901130] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Jordy M. Saya
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines & SystemsVrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines & SystemsVrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines & SystemsVrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
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29
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Pan L, Zheng C, Fang G, Hong H, Liu J, Yu L, Zhao G. Asymmetric Total Synthesis of Vincadifformine Enabled by a Thiourea‐Phosphonium Salt Catalyzed Mannich‐Type Reaction. Chemistry 2019; 25:6306-6310. [DOI: 10.1002/chem.201900896] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/28/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Lu Pan
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Chang‐Wu Zheng
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Guo‐Sheng Fang
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Hao‐Ran Hong
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Jun Liu
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Long‐Hui Yu
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural SubstancesShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
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30
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Hiraoka S, Matsumoto T, Matsuzaka K, Sato T, Chida N. Approach to Fully Substituted Cyclic Nitrones from
N
‐Hydroxylactam Derivatives: Development and Application to the Total Synthesis of Cylindricine C. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shobu Hiraoka
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3-14-1, Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Tsutomu Matsumoto
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3-14-1, Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Koki Matsuzaka
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3-14-1, Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Takaaki Sato
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3-14-1, Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Noritaka Chida
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3-14-1, Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
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31
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Hiraoka S, Matsumoto T, Matsuzaka K, Sato T, Chida N. Approach to Fully Substituted Cyclic Nitrones from N-Hydroxylactam Derivatives: Development and Application to the Total Synthesis of Cylindricine C. Angew Chem Int Ed Engl 2019; 58:4381-4385. [PMID: 30720229 DOI: 10.1002/anie.201901049] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Indexed: 01/03/2023]
Abstract
An approach to cyclic nitrones from N-hydroxylactam derivatives is documented. The nucleophilic addition of an organolithium reagent to an N-OSEM [SEM=2-(trimethylsilyl)ethoxymethyl] lactam forms a five-membered chelated intermediate, which undergoes both elimination and deprotection to give a fully substituted nitrone in a one-pot process. When combined with the N-oxidation of easily available chiral lactams, this method becomes especially useful for the quick synthesis of chiral nitrones in enantio-pure form, enabling the concise total synthesis of cylindricine C.
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Affiliation(s)
- Shobu Hiraoka
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Tsutomu Matsumoto
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Koki Matsuzaka
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, 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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32
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Trillo P, Slagbrand T, Adolfsson H. Straightforward α-Amino Nitrile Synthesis Through Mo(CO)6
-Catalyzed Reductive Functionalization of Carboxamides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807735] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paz Trillo
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
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33
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Trillo P, Slagbrand T, Adolfsson H. Straightforward α-Amino Nitrile Synthesis Through Mo(CO)6
-Catalyzed Reductive Functionalization of Carboxamides. Angew Chem Int Ed Engl 2018; 57:12347-12351. [DOI: 10.1002/anie.201807735] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Paz Trillo
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
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34
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Ou W, Han F, Hu XN, Chen H, Huang PQ. Iridium-Catalyzed Reductive Alkylations of Secondary Amides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806747] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Xiu-Ning Hu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Hang Chen
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 P. R. China
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35
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Ou W, Han F, Hu XN, Chen H, Huang PQ. Iridium-Catalyzed Reductive Alkylations of Secondary Amides. Angew Chem Int Ed Engl 2018; 57:11354-11358. [DOI: 10.1002/anie.201806747] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/05/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Xiu-Ning Hu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Hang Chen
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 P. R. China
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36
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Nebe MM, Loeper D, Fürmeyer F, Opatz T. Visible-Light Organophotoredox-Catalyzed Synthesis of Precursors for Horner-Type Olefinations. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800213] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Marco M. Nebe
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Daniel Loeper
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Fabian Fürmeyer
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Till Opatz
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
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37
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He Y, Li Z, Robeyns K, Van Meervelt L, Van der Eycken EV. A Gold-Catalyzed Domino Cyclization Enabling Rapid Construction of Diverse Polyheterocyclic Frameworks. Angew Chem Int Ed Engl 2017; 57:272-276. [PMID: 29144011 DOI: 10.1002/anie.201710592] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 12/28/2022]
Abstract
We report herein an efficient gold(I)-catalyzed post-Ugi domino dearomatization/ipso-cyclization/Michael sequence that enables access to libraries of diverse (hetero)arene-annulated tricyclic heterocycles. This process affords novel complex polycyclic scaffolds in moderate to good yields from readily available acyclic precursors with excellent chemo-, regio-, and diastereoselectivity. The power of this strategy has been demonstrated by the rapid synthesis of 40 highly functionalized polyheterocycles bearing indole, pyrrole, (benzo)furan, (benzo)thiophene, pyrazole, and electron-rich arene groups in two operational steps.
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Affiliation(s)
- Yi He
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Heverlee, 3001, Leuven, Belgium
| | - Zhenghua Li
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Heverlee, 3001, Leuven, Belgium
| | - Koen Robeyns
- Institute of Condensed Matter and Nanosciences, MOST-Inorganic Chemistry, Université catholique de Louvain, Place L. Pasteur 1, 1348, Louvain-la-Neuve, Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Heverlee, 3001, Leuven, Belgium
| | - Erik V Van der Eycken
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Heverlee, 3001, Leuven, Belgium.,Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russia
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38
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He Y, Li Z, Robeyns K, Van Meervelt L, Van der Eycken EV. A Gold-Catalyzed Domino Cyclization Enabling Rapid Construction of Diverse Polyheterocyclic Frameworks. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yi He
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry; KU Leuven; Celestijnenlaan 200F, Heverlee 3001 Leuven Belgium
| | - Zhenghua Li
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry; KU Leuven; Celestijnenlaan 200F, Heverlee 3001 Leuven Belgium
| | - Koen Robeyns
- Institute of Condensed Matter and Nanosciences; MOST-Inorganic Chemistry; Université catholique de Louvain; Place L. Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture; Department of Chemistry; KU Leuven; Celestijnenlaan 200F, Heverlee 3001 Leuven Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry; KU Leuven; Celestijnenlaan 200F, Heverlee 3001 Leuven Belgium
- Peoples Friendship University of Russia (RUDN University); 6 Miklukho-Maklaya Street Moscow 117198 Russia
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39
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Huang PQ, Fan T. Intramolecular Keto Lactam Condensation: A Convenient and Straightforward Approach to Bicyclic Vinylogous Lactams. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Ting Fan
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
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40
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Kang T, White KL, Mann TJ, Hoveyda AH, Movassaghi M. Enantioselective Total Synthesis of (-)-Deoxoapodine. Angew Chem Int Ed Engl 2017; 56:13857-13860. [PMID: 28862815 DOI: 10.1002/anie.201708088] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 01/07/2023]
Abstract
The first enantioselective total synthesis of (-)-deoxoapodine is described. Our synthesis of this hexacyclic aspidosperma alkaloid includes an efficient molybdenum-catalyzed enantioselective ring-closing metathesis reaction for the desymmetrization of an advanced intermediate that introduces the C5-quaternary stereocenter. After C21-oxygenation, the pentacyclic core was accessed by electrophilic C19-amide activation and transannular spirocyclization. A biogenetically inspired dehydrative C6-etherification reaction proved highly effective to secure the F-ring and the fourth contiguous stereocenter of (-)-deoxoapodine with complete stereochemical control.
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Affiliation(s)
- Taek Kang
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Kolby L White
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Tyler J Mann
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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41
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Kang T, White KL, Mann TJ, Hoveyda AH, Movassaghi M. Enantioselective Total Synthesis of (−)-Deoxoapodine. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Taek Kang
- Department of Chemistry; Massachusetts Institute of Technology; Cambridge MA 02139 USA
| | - Kolby L. White
- Department of Chemistry; Massachusetts Institute of Technology; Cambridge MA 02139 USA
| | - Tyler J. Mann
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Mohammad Movassaghi
- Department of Chemistry; Massachusetts Institute of Technology; Cambridge MA 02139 USA
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42
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Trillo P, Slagbrand T, Tinnis F, Adolfsson H. Mild Reductive Functionalization of Amides into N-Sulfonylformamidines. ChemistryOpen 2017; 6:484-487. [PMID: 28794940 PMCID: PMC5542752 DOI: 10.1002/open.201700087] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Indexed: 01/12/2023] Open
Abstract
The development of a protocol for the reductive functionalization of amides into N‐sulfonylformamidines is reported. The one‐pot procedure is based on a mild catalytic reduction of tertiary amides into the corresponding enamines by the use of Mo(CO)6 (molybdenum hexacarbonyl) and TMDS (1,1,3,3‐tetramethyldisiloxane). The formed enamines were allowed to react with sulfonyl azides to give the target compounds in moderate to good yields.
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Affiliation(s)
- Paz Trillo
- Department of Organic Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Fredrik Tinnis
- Department of Organic Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Organic Chemistry Stockholm University 106 91 Stockholm Sweden.,Department of Chemistry Umeå University 901 87 Umeå Sweden
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43
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Fuentes de Arriba ÁL, Lenci E, Sonawane M, Formery O, Dixon DJ. Iridium‐Catalyzed Reductive Strecker Reaction for Late‐Stage Amide and Lactam Cyanation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612367] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ángel L. Fuentes de Arriba
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Elena Lenci
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Mahendra Sonawane
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Odilon Formery
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Darren J. Dixon
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
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44
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Fuentes de Arriba ÁL, Lenci E, Sonawane M, Formery O, Dixon DJ. Iridium-Catalyzed Reductive Strecker Reaction for Late-Stage Amide and Lactam Cyanation. Angew Chem Int Ed Engl 2017; 56:3655-3659. [PMID: 28233919 DOI: 10.1002/anie.201612367] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 12/15/2022]
Abstract
A new iridium-catalyzed reductive Strecker reaction for the direct and efficient formation of α-amino nitrile products from a broad range of (hetero)aromatic and aliphatic tertiary amides, and N-alkyl lactams is reported. The protocol exploits the mild and highly chemoselective reduction of the amide and lactam functionalities using IrCl(CO)[P(C6 H5 )3 ]2 (Vaska's complex) in the presence of tetramethyldisiloxane, as a reductant, to directly generate hemiaminal species able to undergo substitution by cyanide upon treatment with TMSCN (TMS=trimethylsilyl). The protocol is simple to perform, broad in scope, efficient (up to 99 % yield), and has been successfully applied to the late-stage functionalization of amide- and lactam-containing drugs, and naturally occurring alkaloids, as well as for the selective cyanation of the carbonyl carbon atom linked to the N atom of proline residues within di- and tripeptides.
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Affiliation(s)
- Ángel L Fuentes de Arriba
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Elena Lenci
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Mahendra Sonawane
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Odilon Formery
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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45
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Académie des Sciences Prizes/Novartis Chemistry Lectureship 2016–2017/Welch Award in Chemistry. Angew Chem Int Ed Engl 2017; 56:1447-1448. [DOI: 10.1002/anie.201611822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Preise der Académie des Sciences/Novartis Chemistry Lectureship 2016-2017/Welch-Preis in Chemie. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Huang PQ, Ou W. A Direct, Versatile, and Chemoselective Synthesis of Vinylogous Bis- and Monourethanes/amides and β-Keto Esters by Aza-Knoevenagel-Type Reactions of Tertiary Amides with Enolates. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601326] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P.R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Wei Ou
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P.R. China
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