1
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M J, Joy F, Nizam A, Naidu Krishna SB. Multicomponent Synthesis Strategies, Catalytic Activities, and Potential Therapeutic Applications of Pyranocoumarins: A Comprehensive Review. Chem Biodivers 2023; 20:e202300836. [PMID: 37702294 DOI: 10.1002/cbdv.202300836] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/14/2023]
Abstract
Fused coumarins, because of their remarkable biological and therapeutic properties, particularly pyranocoumarins, have caught the interest of synthetic organic chemists, leading to the development of more efficient and environmentally friendly protocols for synthesizing pyranocoumarin derivatives. These compounds are the most promising heterocycles discovered in both natural and synthetic sources, with anti-inflammatory, anti-HIV, antitubercular, antihyperglycemic, and antibacterial properties. This review employed the leading scientific databases Scopus, Web of Science, Google Scholar, and PubMed up to the end of 2022, as well as the combining terms pyranocoumarins, synthesis, isolation, structural elucidation, and biological activity. Among the catalysts employed, acidic magnetic nanocatalysts, transition metal catalysts, and carbon-based catalysts have all demonstrated improved reaction yields and facilitated reactions under milder conditions. Herein, the present review discusses the various multicomponent synthetic strategies for pyranocoumarins catalyzed by transition metal-based catalysts, transition metal-based nanocatalysts, transition metal-free catalysts, carbon-based nanocatalysts, and their potential pharmacological activities.
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Affiliation(s)
- Jayalakshmi M
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka), 560029, India
| | - Francis Joy
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka), 560029, India
| | - Aatika Nizam
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka), 560029, India
| | - Suresh Babu Naidu Krishna
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, 4000, South Africa
- Department of Biomedical and Clinical Technology, Durban University of Technology, Durban, 4000, South Africa
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2
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Park S, Lee J, Kim JH, Jeong Y, Lee S, Lee SW, Kim S. Evolution of a Strategy for Concise Enantioselective Total Synthesis of the Salinosporamide Family of Natural Products. Angew Chem Int Ed Engl 2022; 61:e202210317. [DOI: 10.1002/anie.202210317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Soojun Park
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Jiwoo Lee
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Jae Hyun Kim
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
- College of Pharmacy Chung-Ang University 84, Heukseok-ro Seoul 06974 Republic of Korea
| | - Yeji Jeong
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Seokwoo Lee
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Su Won Lee
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Sanghee Kim
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
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3
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Park S, Lee J, Kim JH, Jeong Y, Lee S, Lee SW, Kim S. Evolution of a Strategy for Concise Enantioselective Total Synthesis of the Salinosporamide Family of Natural Products. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210317] [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)
- Soojun Park
- Seoul National University College of Pharmacy Pharmacy KOREA, REPUBLIC OF
| | - Jiwoo Lee
- Seoul National University College of Pharmacy Pharmacy KOREA, REPUBLIC OF
| | - Jae Hyun Kim
- Chung-Ang University - Seoul Campus: Chung-Ang University Pharmacy KOREA, REPUBLIC OF
| | - Yeji Jeong
- Seoul National University College of Pharmacy Pharmacy KOREA, REPUBLIC OF
| | - Seokwoo Lee
- Seoul National University College of Pharmacy Pharmacy KOREA, REPUBLIC OF
| | - Su Won Lee
- Seoul National University College of Pharmacy Pharmacy KOREA, REPUBLIC OF
| | - Sanghee Kim
- Seoul National University College of Pharmacy 1 Gwanak-ro, Gwanak-gu 08826 Seoul KOREA, REPUBLIC OF
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4
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Bauman KD, Shende VV, Chen PYT, Trivella DBB, Gulder TAM, Vellalath S, Romo D, Moore BS. Enzymatic assembly of the salinosporamide γ-lactam-β-lactone anticancer warhead. Nat Chem Biol 2022; 18:538-546. [PMID: 35314816 PMCID: PMC9058210 DOI: 10.1038/s41589-022-00993-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 02/04/2022] [Indexed: 12/25/2022]
Abstract
The marine microbial natural product salinosporamide A (marizomib) is a potent proteasome inhibitor currently in clinical trials for the treatment of brain cancer. Salinosporamide A is characterized by a complex and densely functionalized γ-lactam-β-lactone bicyclic warhead, the assembly of which has long remained a biosynthetic mystery. Here, we report an enzymatic route to the salinosporamide core catalyzed by a standalone ketosynthase (KS), SalC. Chemoenzymatic synthesis of carrier protein-tethered substrates, as well as intact proteomics, allowed us to probe the reactivity of SalC and understand its role as an intramolecular aldolase/β-lactone synthase with roles in both transacylation and bond-forming reactions. Additionally, we present the 2.85-Å SalC crystal structure that, combined with site-directed mutagenesis, allowed us to propose a bicyclization reaction mechanism. This work challenges our current understanding of the role of KS enzymes and establishes a basis for future efforts toward streamlined production of a clinically relevant chemotherapeutic.
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Affiliation(s)
- Katherine D Bauman
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
| | - Vikram V Shende
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
| | - Percival Yang-Ting Chen
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
- Morphic Therapeutics, Waltham, MA, USA
| | - Daniela B B Trivella
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
- Brazilian Biosciences National Laboratory, National Center for Research in Energy and Materials, Campinas, Brazil
- Institute of Chemistry, University of Campinas, Campinas, Brazil
| | - Tobias A M Gulder
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
- Chair of Technical Biochemistry, Technical University of Dresden, Dresden, Germany
| | | | - Daniel Romo
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Bradley S Moore
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA.
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA.
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5
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Li W, Zheng Y, Qu E, Bai J, Deng Q. β
‐Keto Amides: A Jack‐of‐All‐Trades Building Block in Organic Chemistry. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wanfang Li
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yan Zheng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Erdong Qu
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Jin Bai
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Qinyue Deng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
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6
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Serrano-Aparicio N, Moliner V, Świderek K. On the Origin of the Different Reversible Characters of Salinosporamide A and Homosalinosporamide A in the Covalent Inhibition of the Human 20S Proteasome. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Natalia Serrano-Aparicio
- Biocomp Group, Institute of Advanced Materials (INAM), Universitat Jaume I, 12071 Castellón, Spain
| | - Vicent Moliner
- Biocomp Group, Institute of Advanced Materials (INAM), Universitat Jaume I, 12071 Castellón, Spain
| | - Katarzyna Świderek
- Biocomp Group, Institute of Advanced Materials (INAM), Universitat Jaume I, 12071 Castellón, Spain
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7
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Zhu CF, Zhang J, Zhu YL, Hao WJ, Tu SJ, Wang DC, Jiang B. A photoinduced arene–alkyne [3 + 2] cycloaddition cascade of 1-alkynylnaphthalen-2-ols for tunable synthesis of skeletally diverse bridged hexacycles. Org Chem Front 2021. [DOI: 10.1039/d1qo00124h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photoinduced solvent-dependent cyclodimerizations of 1-alkynylnaphthalen-2-ols were developed for the first time, producing skeletally diverse bridged hexacyclic architectures with good yields and high stereoselectivities.
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Affiliation(s)
- Chi-Fan Zhu
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing
- P. R. China
- School of Chemistry & Materials Science
| | - Jie Zhang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Yi-Long Zhu
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - De-Cai Wang
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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8
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Demeritte A, Wuest WM. A look around the West Indies: The spices of life are secondary metabolites. Bioorg Med Chem 2020; 28:115792. [PMID: 33038665 PMCID: PMC7528826 DOI: 10.1016/j.bmc.2020.115792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
Natural products possess a wide range of bioactivities with potential for therapeutic usage. While the distribution of these molecules can vary greatly there is some correlation that exists between the biodiversity of an environment and the uniqueness and concentration of natural products found in that region or area. The Caribbean and pan-Caribbean area is home to thousands of species of endemic fauna and flora providing huge potential for natural product discovery and by way, potential leads for drug development. This can especially be said for marine natural products as many of are rapidly diluted through diffusion once released and therefore are highly potent to achieve long reaching effects. This review seeks to highlight a small selection of marine natural products from the Caribbean region which possess antiproliferative, anti-inflammatory and antipathogenic properties while highlighting any synthetic efforts towards bioactive analogs.
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Affiliation(s)
- Adrian Demeritte
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA
| | - William M Wuest
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA.
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9
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Hubbell GE, Tepe JJ. Natural product scaffolds as inspiration for the design and synthesis of 20S human proteasome inhibitors. RSC Chem Biol 2020; 1:305-332. [PMID: 33791679 PMCID: PMC8009326 DOI: 10.1039/d0cb00111b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/01/2020] [Indexed: 12/13/2022] Open
Abstract
The 20S proteasome is a valuable target for the treatment of a number of diseases including cancer, neurodegenerative disease, and parasitic infection. In an effort to discover novel inhibitors of the 20S proteasome, many reseaarchers have looked to natural products as potential leads for drug discovery. The following review discusses the efforts made in the field to isolate and identify natural products as inhibitors of the proteasome. In addition, we describe some of the modifications made to natural products in order to discover more potent and selective inhibitors for potential disease treatment.
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Affiliation(s)
- Grace E. Hubbell
- Department of Chemistry, Michigan State UniversityEast LansingMI 48823USA
| | - Jetze J. Tepe
- Department of Chemistry, Michigan State UniversityEast LansingMI 48823USA
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10
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Gholami H, Kulshrestha A, Favor OK, Staples RJ, Borhan B. Total Synthesis of (-)-Salinosporamide A via a Late Stage C-H Insertion. Angew Chem Int Ed Engl 2019; 58:10110-10113. [PMID: 30887693 DOI: 10.1002/anie.201900340] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Indexed: 01/24/2023]
Abstract
The synthesis of (-)-salinosporamide A, a proteasome inhibitor, is described. The synthesis highlights the assembly of a densely decorated pyrrolidinone core via an aza-Payne/hydroamination sequence. Central to the success of the synthesis is a late-stage C-H insertion reaction to functionalize a sterically encumbered secondary carbon. The latter functionalization leads to an enabling transformation where most of the prototypical strategies failed.
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Affiliation(s)
- Hadi Gholami
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Aman Kulshrestha
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Olivia K Favor
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Richard J Staples
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Babak Borhan
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
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11
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Natural product derivatization with β-lactones, β-lactams and epoxides toward ‘infinite’ binders. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Gholami H, Kulshrestha A, Favor OK, Staples RJ, Borhan B. Total Synthesis of (−)‐Salinosporamide A via a Late Stage C−H Insertion. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hadi Gholami
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Aman Kulshrestha
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Olivia K. Favor
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Richard J. Staples
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Babak Borhan
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
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13
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(-)-Homosalinosporamide A and Its Mode of Proteasome Inhibition: An X-ray Crystallographic Study. Mar Drugs 2018; 16:md16070240. [PMID: 30029468 PMCID: PMC6071143 DOI: 10.3390/md16070240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/05/2018] [Accepted: 07/11/2018] [Indexed: 12/18/2022] Open
Abstract
Upon acylation of the proteasome by the β-lactone inhibitor salinosporamide A (SalA), tetrahydrofuran formation occurs by intramolecular alkylation of the incipient alkoxide onto the choroethyl sidechain and irreversibly blocks the active site. Our previously described synthetic approach to SalA, utilizing a bioinspired, late-stage, aldol-β-lactonization strategy to construct the bicyclic β-lactone core, enabled synthesis of (⁻)-homosalinosporamide A (homoSalA). This homolog was targeted to determine whether an intramolecular tetrahydropyran is formed in a similar manner to SalA. Herein, we report the X-ray structure of the yeast 20S proteasome:homoSalA-complex which reveals that tetrahydropyran ring formation does not occur despite comparable potency at the chymotrypsin-like active site in a luminogenic enzyme assay. Thus, the natural product derivative homoSalA blocks the proteasome by a covalent reversible mode of action, opening the door for further fine-tuning of proteasome inhibition.
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14
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Abstract
Salinosporamide A is a β-lactone proteasome inhibitor currently in clinical trials for the treatment of multiple-myeloma. Herein we report a short synthesis of this small, highly functionalized, biologically important natural product that uses an oxidative radical cyclization as a key step and allows for the preparation of gram quantities of advanced synthetic intermediates.
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Affiliation(s)
- Léo B Marx
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Jonathan W Burton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
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15
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Kong W, Romo D. Diastereo- and Enantioselective Synthesis of Bi- and Tricyclic N-Heterocycle-Fused β-Lactones. J Org Chem 2017; 82:13161-13170. [DOI: 10.1021/acs.joc.7b02235] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weixu Kong
- Department of Chemistry & Biochemistry, Baylor University, Waco, Texas 76710, United States
| | - Daniel Romo
- Department of Chemistry & Biochemistry, Baylor University, Waco, Texas 76710, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77840, United States
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16
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Mondal S, Mukherjee S, Das TK, Gonnade RG, Biju AT. Enantioselective Synthesis of Functionalized β-Lactones by NHC-Catalyzed Aldol Lactonization of Ketoacids. J Org Chem 2017; 82:9223-9228. [PMID: 28774172 DOI: 10.1021/acs.joc.7b01526] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
N-Heterocyclic carbene (NHC)-catalyzed intramolecular aldol lactonization of readily available ketoacids leading to the enantioselective synthesis of cyclopentane-fused β-lactones is presented. The reaction proceeds via the generation of NHC-bound enolate intermediates formed from the ketoacids in the presence of the peptide coupling reagent HATU and NHC generated from the chiral triazolium salt. The functionalized β-lactones are formed under mild conditions in high yields and enantioselectivities.
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Affiliation(s)
- Santigopal Mondal
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
| | - Subrata Mukherjee
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
| | - Tamal Kanti Das
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
| | | | - Akkattu T Biju
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
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17
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Dhakal D, Pokhrel AR, Shrestha B, Sohng JK. Marine Rare Actinobacteria: Isolation, Characterization, and Strategies for Harnessing Bioactive Compounds. Front Microbiol 2017; 8:1106. [PMID: 28663748 PMCID: PMC5471306 DOI: 10.3389/fmicb.2017.01106] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 05/31/2017] [Indexed: 12/28/2022] Open
Abstract
Actinobacteria are prolific producers of thousands of biologically active natural compounds with diverse activities. More than half of these bioactive compounds have been isolated from members belonging to actinobacteria. Recently, rare actinobacteria existing at different environmental settings such as high altitudes, volcanic areas, and marine environment have attracted attention. It has been speculated that physiological or biochemical pressures under such harsh environmental conditions can lead to the production of diversified natural compounds. Hence, marine environment has been focused for the discovery of novel natural products with biological potency. Many novel and promising bioactive compounds with versatile medicinal, industrial, or agricultural uses have been isolated and characterized. The natural compounds cannot be directly used as drug or other purposes, so they are structurally modified and diversified to ameliorate their biological or chemical properties. Versatile synthetic biological tools, metabolic engineering techniques, and chemical synthesis platform can be used to assist such structural modification. This review summarizes the latest studies on marine rare actinobacteria and their natural products with focus on recent approaches for structural and functional diversification of such microbial chemicals for attaining better applications.
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Affiliation(s)
- Dipesh Dhakal
- Department of Life Science and Biochemical Engineering, Sun Moon UniversityAsan-si, South Korea
| | - Anaya Raj Pokhrel
- Department of Life Science and Biochemical Engineering, Sun Moon UniversityAsan-si, South Korea
| | - Biplav Shrestha
- Department of Life Science and Biochemical Engineering, Sun Moon UniversityAsan-si, South Korea
| | - Jae Kyung Sohng
- Department of Life Science and Biochemical Engineering, Sun Moon UniversityAsan-si, South Korea.,Department of BT-Convergent Pharmaceutical Engineering, Sun Moon University Asan-siSouth Korea
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18
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Ruysbergh E, Van Hecke K, Stevens CV, De Kimpe N, Mangelinckx S. Synthesis of 1,4-Oxazepane-2,5-diones via Cyclization of Rotationally Restricted Amino Acid Precursors and Structural Reassignment of Serratin. J Org Chem 2017; 82:6210-6222. [DOI: 10.1021/acs.joc.7b00790] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ewout Ruysbergh
- Department
of Sustainable Organic Chemistry and Technology, Faculty of Bioscience
Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Kristof Van Hecke
- XStruct,
Department of Inorganic and Physical Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281, S3, B-9000 Ghent, Belgium
| | - Christian V. Stevens
- Department
of Sustainable Organic Chemistry and Technology, Faculty of Bioscience
Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Norbert De Kimpe
- Department
of Sustainable Organic Chemistry and Technology, Faculty of Bioscience
Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department
of Sustainable Organic Chemistry and Technology, Faculty of Bioscience
Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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19
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Zhu M, Harshbarger WD, Robles O, Krysiak J, Hull KG, Cho SW, Richardson RD, Yang Y, Garcia A, Spiegelman L, Ramirez B, Wilson CT, Yau JA, Moore JT, Walker CB, Sacchettini JC, Liu WR, Sieber SA, Smith JW, Romo D. A strategy for dual inhibition of the proteasome and fatty acid synthase with belactosin C-orlistat hybrids. Bioorg Med Chem 2017; 25:2901-2916. [PMID: 28236510 PMCID: PMC5522751 DOI: 10.1016/j.bmc.2017.01.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 01/13/2017] [Indexed: 11/21/2022]
Abstract
The proteasome, a validated cellular target for cancer, is central for maintaining cellular homeostasis, while fatty acid synthase (FAS), a novel target for numerous cancers, is responsible for palmitic acid biosynthesis. Perturbation of either enzymatic machine results in decreased proliferation and ultimately cellular apoptosis. Based on structural similarities, we hypothesized that hybrid molecules of belactosin C, a known proteasome inhibitor, and orlistat, a known inhibitor of the thioesterase domain of FAS, could inhibit both enzymes. Herein, we describe proof-of-principle studies leading to the design, synthesis and enzymatic activity of several novel, β-lactone-based, dual inhibitors of these two enzymes. Validation of dual enzyme targeting through activity-based proteome profiling with an alkyne probe modeled after the most potent inhibitor, and preliminary serum stability studies of selected derivatives are also described. These results provide proof of concept for dual targeting of the proteasome and fatty acid synthase-thioesterase (FAS-TE) enabling a new approach for the development of drug-candidates with potential to overcome resistance.
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Affiliation(s)
- Mingzhao Zhu
- Department of Chemistry & Biochemistry and CPRIT Synthesis and Drug-Lead Discovery Laboratory, Baylor University, Waco, TX 76706, USA
| | - Wayne D Harshbarger
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77840, USA
| | - Omar Robles
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Joanna Krysiak
- Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Kenneth G Hull
- Department of Chemistry & Biochemistry and CPRIT Synthesis and Drug-Lead Discovery Laboratory, Baylor University, Waco, TX 76706, USA
| | - Sung Wook Cho
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | | | - Yanyan Yang
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Andres Garcia
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Lindsey Spiegelman
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Bianca Ramirez
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | | | - Ju Anne Yau
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - James T Moore
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Caitlen B Walker
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - James C Sacchettini
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77840, USA
| | - Wenshe R Liu
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Stephan A Sieber
- Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Jeffrey W Smith
- Sanford Burnham Medical Research Institute, La Jolla, CA, USA
| | - Daniel Romo
- Department of Chemistry & Biochemistry and CPRIT Synthesis and Drug-Lead Discovery Laboratory, Baylor University, Waco, TX 76706, USA.
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20
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Zhang JQ, Li NK, Yin SJ, Sun BB, Fan WT, Wang XW. Chiral N-Heterocyclic Carbene-Catalyzed Asymmetric Michael-Intramolecular Aldol-Lactonization Cascade for Enantioselective Construction of β-Propiolactone-Fused Spiro[cyclopentane-oxindoles]. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601259] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Nai-Kai Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Shao-Jie Yin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Wei-Tai Fan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
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21
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Neyyappadath RM, Cordes DB, Slawin AMZ, Smith AD. 6-exo-trig Michael addition-lactonizations for catalytic enantioselective chromenone synthesis. Chem Commun (Camb) 2017; 53:2555-2558. [PMID: 28133660 PMCID: PMC5358503 DOI: 10.1039/c6cc10178j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/18/2017] [Indexed: 11/30/2022]
Abstract
The catalytic enantioselective 6-exo-trig Michael addition-lactonization of enone-acid substrates to form cis-chromenones with high diastereo- and enantiocontrol was developed using the commercially available isothiourea tetramisole. An acidic workup proved necessary to minimize product epimerization and maximize product er, providing cis-chromenones in excellent yield, and with excellent diastereo- and enantioselectivity.
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Affiliation(s)
- Rifahath M Neyyappadath
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
| | - David B Cordes
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
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22
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Vellalath S, Romo D. Asymmetric Organocatalysis: The Emerging Utility of α,β-Unsaturated Acylammonium Salts. Angew Chem Int Ed Engl 2016; 55:13934-13943. [PMID: 27650693 PMCID: PMC5523468 DOI: 10.1002/anie.201602217] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/12/2016] [Indexed: 11/06/2022]
Abstract
Although acylammonium salts are well-studied, chiral α,β-unsaturated acylammonium salts have received much less attention. While these intermediates are convenient synthons, which are readily available from several commodity unsaturated acids and acid chlorides, and possess three reactive sites, their application in organic synthesis has been limited because of the lack of appropriate chiral Lewis bases for their generation. In recent years, the utility of chiral, unsaturated acylammonium salts has expanded considerably, thus demonstrating the unique reactivity of this intermediate leading to the development of a diverse array of catalytic, asymmetric transformations including organocascade processes. This Minireview highlights the recent and growing interest in these intermediates which might spark further research into their untapped potential for asymmetric organocascade catalysis. A cursory comparison is made to related unsaturated iminium and acylazolium intermediates.
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Affiliation(s)
- Sreekumar Vellalath
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, 76798, USA
| | - Daniel Romo
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, 76798, USA.
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23
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Vellalath S, Romo D. Asymmetrische Organokatalyse: α,β‐ungesättigte Acylammoniumsalze erweisen sich als immer nützlicher. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602217] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sreekumar Vellalath
- Department of Chemistry and Biochemistry Baylor University Waco TX 76798 USA
| | - Daniel Romo
- Department of Chemistry and Biochemistry Baylor University Waco TX 76798 USA
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24
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25
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Zhang M, Liao L, Yu S, Liao Y, Xu X, Yuan W, Zhang X. Efficient Synthesis of 9H-Pyrrolo[1,2-α]Indoles via Michael Addition-Condensation of 3-Substituted Indoles with α,β-Unsaturated Ketimines. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2661] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Minmin Zhang
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Lihua Liao
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Shuowen Yu
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yijun Liao
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Xiaoying Xu
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
| | - Weicheng Yuan
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
| | - Xiaomei Zhang
- Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences; Chengdu 610041 China
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26
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Hager A, Vrielink N, Hager D, Lefranc J, Trauner D. Synthetic approaches towards alkaloids bearing α-tertiary amines. Nat Prod Rep 2015; 33:491-522. [PMID: 26621771 DOI: 10.1039/c5np00096c] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Alkaloids account for some of the most beautiful and biologically active natural products. Although they are usually classified along biosynthetic criteria, they can also be categorized according to certain structural motifs. Amongst these, the α-tertiary amine (ATA), i.e. a tetrasubstituted carbon atom surrounded by three carbons and one nitrogen, is particularly interesting. A limited number of methods have been described to access this functional group and fewer still are commonly used in synthesis. Herein, we review some approaches to asymmetrically access ATAs and provide an overview of alkaloid total syntheses where those have been employed.
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Affiliation(s)
- Anastasia Hager
- Fakultät für Chemie und Pharmazie, Ludwig-Maximilians-Universität München, and Munich Center for Integrated Protein Science, Butenandtstr. 5 - 13, 81377 München, Germany.
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27
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Kim JH, Lee S, Kim S. Biomimetic Total Synthesis of (−)-Penibruguieramine A Using Memory of Chirality and Dynamic Kinetic Resolution. Angew Chem Int Ed Engl 2015; 54:10875-8. [DOI: 10.1002/anie.201504954] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Indexed: 11/07/2022]
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28
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Kim JH, Lee S, Kim S. Biomimetic Total Synthesis of (−)-Penibruguieramine A Using Memory of Chirality and Dynamic Kinetic Resolution. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504954] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Morrill LC, Smith AD. Organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium or azolium enolates. Chem Soc Rev 2015; 43:6214-26. [PMID: 24867308 DOI: 10.1039/c4cs00042k] [Citation(s) in RCA: 148] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This tutorial review highlights the organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium/azolium enolates. The generation and synthetic utility of these powerful intermediates is highlighted through their application in various methodologies including aldol-lactonisations, Michael-lactonisations/lactamisations and [2,3]-rearrangements.
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Affiliation(s)
- Louis C Morrill
- EastCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, UKKY16 9ST.
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30
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Hesping L, Biswas A, Daniliuc CG, Mück-Lichtenfeld C, Studer A. Stereoselective Lewis base catalyzed formal 1,3-dipolar cycloaddition of azomethine imines with mixed anhydrides. Chem Sci 2015; 6:1252-1257. [PMID: 29541440 PMCID: PMC5811128 DOI: 10.1039/c4sc02612h] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/14/2014] [Indexed: 11/21/2022] Open
Abstract
Stereoselective synthesis of pyrazolidinones via dipolar cycloaddition of azomethine imines with active esters under Lewis base catalysis is presented. The active esters are readily generated in situ from the corresponding acids. Products, which are obtained with excellent diastereocontrol and high enantioselectivity, contain along with the pyrazolidinone core also the tetrahydroisoquinoline structural motif. Theoretical studies give insight into the mechanism of the formal cycloaddition reaction.
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Affiliation(s)
- Lena Hesping
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster Corrensstrasse 40 , 48149 Münster , Germany . ; http://www.uni-muenster.de/Chemie.oc/studer/ ; ; Tel: +49-251-83-33291
| | - Anup Biswas
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster Corrensstrasse 40 , 48149 Münster , Germany . ; http://www.uni-muenster.de/Chemie.oc/studer/ ; ; Tel: +49-251-83-33291
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster Corrensstrasse 40 , 48149 Münster , Germany . ; http://www.uni-muenster.de/Chemie.oc/studer/ ; ; Tel: +49-251-83-33291
| | - Christian Mück-Lichtenfeld
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster Corrensstrasse 40 , 48149 Münster , Germany . ; http://www.uni-muenster.de/Chemie.oc/studer/ ; ; Tel: +49-251-83-33291
| | - Armido Studer
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster Corrensstrasse 40 , 48149 Münster , Germany . ; http://www.uni-muenster.de/Chemie.oc/studer/ ; ; Tel: +49-251-83-33291
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31
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Yeh PP, Daniels DSB, Fallan C, Gould E, Simal C, Taylor JE, Slawin AMZ, Smith AD. Exploring the scope of the isothiourea-mediated synthesis of dihydropyridinones. Org Biomol Chem 2015; 13:2177-91. [DOI: 10.1039/c4ob02408g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The exploration and expansion of the scope of the isothiourea-mediated synthesis of dihydropyridinones is presented.
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Affiliation(s)
- Pei-Pei Yeh
- EaStCHEM
- School of Chemistry
- University of St Andrews
- North Haugh
- UK
| | | | - Charlene Fallan
- EaStCHEM
- School of Chemistry
- University of St Andrews
- North Haugh
- UK
| | - Eoin Gould
- EaStCHEM
- School of Chemistry
- University of St Andrews
- North Haugh
- UK
| | - Carmen Simal
- EaStCHEM
- School of Chemistry
- University of St Andrews
- North Haugh
- UK
| | - James E. Taylor
- EaStCHEM
- School of Chemistry
- University of St Andrews
- North Haugh
- UK
| | | | - Andrew D. Smith
- EaStCHEM
- School of Chemistry
- University of St Andrews
- North Haugh
- UK
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32
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Mukherjee S, Mondal S, Patra A, Gonnade RG, Biju AT. N-Heterocyclic carbene-catalyzed diastereoselective synthesis of β-lactone-fused cyclopentanes using homoenolate annulation reaction. Chem Commun (Camb) 2015; 51:9559-62. [DOI: 10.1039/c5cc02960k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
NHC-catalyzed annulation of enals with 2-enoylpyridines or 2-enoylpyridine N-oxides leading to the diastereoselective synthesis of β-lactone-fused cyclopentanes is reported.
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Affiliation(s)
- Subrata Mukherjee
- Organic Chemistry Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
| | - Santigopal Mondal
- Organic Chemistry Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
| | - Atanu Patra
- Organic Chemistry Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
| | - Akkattu T. Biju
- Organic Chemistry Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
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33
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Cheng JT, Chen XY, Ye S. N-heterocyclic carbene-catalyzed cyclocondensation of 2-aryl carboxylic acids and enones: highly enantioselective synthesis of δ-lactones. Org Biomol Chem 2015; 13:1313-6. [DOI: 10.1039/c4ob02330g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The NHC-catalyzed [4 + 2] cyclocondensation of 2-aryl carboxylic acids with enones was developed, giving δ-lactones in good yields with high enantioselectivities.
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Affiliation(s)
- Jin-Tang Cheng
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xiang-Yu Chen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Song Ye
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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34
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Harvey NL, Krysiak J, Chamni S, Cho SW, Sieber SA, Romo D. Synthesis of (±)-Spongiolactone Enabling Discovery of a More Potent Derivative. Chemistry 2014; 21:1425-8. [DOI: 10.1002/chem.201405980] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Indexed: 11/12/2022]
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35
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Chen XY, Gao ZH, Song CY, Zhang CL, Wang ZX, Ye S. N-Heterocyclic Carbene Catalyzed Cyclocondensation of α,β-Unsaturated Carboxylic Acids: Enantioselective Synthesis of Pyrrolidinone and Dihydropyridinone Derivatives. Angew Chem Int Ed Engl 2014; 53:11611-5. [DOI: 10.1002/anie.201407469] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Indexed: 12/14/2022]
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36
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Chen XY, Gao ZH, Song CY, Zhang CL, Wang ZX, Ye S. N-Heterocyclic Carbene Catalyzed Cyclocondensation of α,β-Unsaturated Carboxylic Acids: Enantioselective Synthesis of Pyrrolidinone and Dihydropyridinone Derivatives. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407469] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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37
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Jiang S, Hu B, Yu X, Deng W. Fc-PIP Catalyzed Asymmetric Synthesis ofcis-2,3-Dihydrobenzofurans. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400186] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Noel A, Delpech B, Crich D. Chemistry of the β-thiolactones: substituent and solvent effects on thermal decomposition and comparison with the β-lactones. J Org Chem 2014; 79:4068-77. [PMID: 24716459 DOI: 10.1021/jo500577c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis of a series of di-, tri-, and tetraalkyl β-thiolactones and β-lactones is described as well as their thermal decomposition with extrusion of carbon oxysulfide and carbon dioxide in two solvents of opposite polarities. The β-thiolactones are considerably more thermally stable than the β-lactones and require higher temperatures for efficient decomposition in both solvents, whatever the degree of substitution. The results are interpreted in terms of a zwitterionic mechanism for fragmentation with a change in the rate-determining step between the two series.
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Affiliation(s)
- Amandine Noel
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS , Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
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39
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Smith SR, Leckie SM, Holmes R, Douglas J, Fallan C, Shapland P, Pryde D, Slawin AMZ, Smith AD. α-Ketophosphonates as ester surrogates: isothiourea-catalyzed asymmetric diester and lactone synthesis. Org Lett 2014; 16:2506-9. [PMID: 24734989 DOI: 10.1021/ol500873s] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Isothiourea HBTM-2.1 catalyzes the asymmetric Michael addition/lactonization of aryl- and alkenylacetic acids using α-keto-β,γ-unsaturated phosphonates as α,β-unsaturated ester surrogates, giving access to a diverse range of stereodefined lactones or enantioenriched functionalized diesters upon ring-opening.
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Affiliation(s)
- Siobhan R Smith
- EaStCHEM, School of Chemistry, University of St. Andrews , North Haugh, St. Andrews KY16 9ST, U.K
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40
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Lajkiewicz NJ, Cognetta A, Niphakis MJ, Cravatt BF, Porco JA. Remodeling natural products: chemistry and serine hydrolase activity of a rocaglate-derived β-lactone. J Am Chem Soc 2014; 136:2659-64. [PMID: 24447064 PMCID: PMC3978386 DOI: 10.1021/ja412431g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Indexed: 12/22/2022]
Abstract
Flavaglines are a class of natural products with potent insecticidal and anticancer activities. β-Lactones are a privileged structural motif found in both therapeutic agents and chemical probes. Herein, we report the synthesis, unexpected light-driven di-epimerization, and activity-based protein profiling of a novel rocaglate-derived β-lactone. In addition to in vitro inhibition of the serine hydrolases ABHD10 and ACOT1/2, the most potent β-lactone enantiomer was also found to inhibit these enzymes, as well as the serine peptidases CTSA and SCPEP1, in PC3 cells.
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Affiliation(s)
- Neil J. Lajkiewicz
- Department
of Chemistry, Center for Chemical Methodology and Library Development
(CMLD-BU), Boston University, 590 Commonwealth Avenue Boston, Massachusetts 02215, United States
| | - Armand
B. Cognetta
- Department
of Chemical Physiology, The Scripps Research
Institute, 10550 North
Torrey Pines Road, La Jolla, California 92037, United States
| | - Micah J. Niphakis
- Department
of Chemical Physiology, The Scripps Research
Institute, 10550 North
Torrey Pines Road, La Jolla, California 92037, United States
| | - Benjamin F. Cravatt
- Department
of Chemical Physiology, The Scripps Research
Institute, 10550 North
Torrey Pines Road, La Jolla, California 92037, United States
| | - John A. Porco
- Department
of Chemistry, Center for Chemical Methodology and Library Development
(CMLD-BU), Boston University, 590 Commonwealth Avenue Boston, Massachusetts 02215, United States
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41
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Smith SR, Douglas J, Prevet H, Shapland P, Slawin AMZ, Smith AD. Isothiourea-Catalyzed Asymmetric Synthesis of β-Lactams and β-Amino Esters from Arylacetic Acid Derivatives and N-Sulfonylaldimines. J Org Chem 2014; 79:1626-39. [DOI: 10.1021/jo402590m] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Siobhan R. Smith
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K
| | - James Douglas
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K
| | - Hugues Prevet
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K
| | - Peter Shapland
- GSK, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Alexandra M. Z. Slawin
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K
| | - Andrew D. Smith
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K
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42
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Morrill LC, Smith SM, Slawin AMZ, Smith AD. Isothiourea-mediated asymmetric functionalization of 3-alkenoic acids. J Org Chem 2014; 79:1640-55. [PMID: 24498850 DOI: 10.1021/jo402591v] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Isothiourea HBTM-2.1 promotes the catalytic asymmetric α-functionalization of 3-alkenoic acids through formal [2 + 2] cycloadditions with N-tosyl aldimines and formal [4 + 2] cycloadditions with either 4-aryltrifluoromethyl enones or N-aryl-N-aroyl diazenes, providing useful synthetic building blocks in good yield and with excellent enantiocontrol (up to >99% ee). Stereodefined products are amenable to further synthetic elaboration through manipulation of the olefinic functionality.
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Affiliation(s)
- Louis C Morrill
- EaStCHEM, School of Chemistry, University of St Andrews , North Haugh, St Andrews, KY16 9ST, U.K
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43
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Yeh PP, Daniels DSB, Cordes DB, Slawin AMZ, Smith AD. Isothiourea-Mediated One-Pot Synthesis of Trifluoromethyl Substituted 2-Pyrones. Org Lett 2014; 16:964-7. [DOI: 10.1021/ol403697h] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Pei-Pei Yeh
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, United Kingdom
| | - David S. B. Daniels
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, United Kingdom
| | - David B. Cordes
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, United Kingdom
| | - Alexandra M. Z. Slawin
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, United Kingdom
| | - Andrew D. Smith
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, United Kingdom
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44
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Marine-sourced anti-cancer and cancer pain control agents in clinical and late preclinical development. Mar Drugs 2014; 12:255-78. [PMID: 24424355 PMCID: PMC3917273 DOI: 10.3390/md12010255] [Citation(s) in RCA: 184] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 12/17/2013] [Accepted: 01/07/2014] [Indexed: 01/08/2023] Open
Abstract
The marine habitat has produced a significant number of very potent marine-derived agents that have the potential to inhibit the growth of human tumor cells in vitro and, in a number of cases, in both in vivo murine models and in humans. Although many agents have entered clinical trials in cancer, to date, only Cytarabine, Yondelis® (ET743), Eribulin (a synthetic derivative based on the structure of halichondrin B), and the dolastatin 10 derivative, monomethylauristatin E (MMAE or vedotin) as a warhead, have been approved for use in humans (Adcetris®). In this review, we show the compounds derived from marine sources that are currently in clinical trials against cancer. We have included brief discussions of the approved agents, where they are in trials to extend their initial approved activity (a common practice once an agent is approved), and have also included an extensive discussion of the use of auristatin derivatives as warheads, plus an area that has rarely been covered, the use of marine-derived agents to ameliorate the pain from cancers in humans, and to act as an adjuvant in immunological therapies.
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45
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Hatakeyama S. Total Synthesis of Biologically Active Natural Products Based on Highly Selective Synthetic Methodologies. Chem Pharm Bull (Tokyo) 2014; 62:1045-61. [DOI: 10.1248/cpb.c14-00474] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Susumi Hatakeyama
- Graduate School of Biomedical Sciences, Nagasaki University, 1–14 Bunkyo-machi, Nagasaki 852–8521, Japan
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46
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Blasdel LK, Lee D, Sun B, Myers AG. (S)-4-Trimethylsilyl-3-butyn-2-ol as an auxiliary for stereocontrolled synthesis of salinosporamide analogs with modifications at positions C2 and C5. Bioorg Med Chem Lett 2013; 23:6905-10. [PMID: 24269479 PMCID: PMC3854947 DOI: 10.1016/j.bmcl.2013.09.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 09/23/2013] [Indexed: 11/18/2022]
Abstract
Analogs of salinosporamide A with variations of the C2 and C5 substituents are prepared in 8-10 steps using as the first and key transformation a diastereoselective Mukaiyama aldol reaction between the chiral 5-tert-butyldimethylsiloxy-3-methyl-1H-pyrrole-2-carboxylic ester depicted and various aldehyde substrates, promoted by tert-butyldimethylsilyl triflate. In this transformation, the 4-trimethylsilyl-3-butyn-2-ol ester functions to direct the formation of predominantly one of four possible diastereomeric aldol products. Introduction of the C2 appendage by a later-stage, stereocontrolled alkylation reaction permits the construction of analogs variant at this position. Results from in vitro and cell-based assays of proteasomal inhibition are reported. Mass spectrometric studies provide mechanistic details of proteasomal modification by salinosporamide A and analogs.
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Affiliation(s)
| | - DongEun Lee
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | | | - Andrew G. Myers
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
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47
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Feng Y, Majireck MM, Weinreb SM. Total syntheses of the monoterpene indole alkaloids (±)-alstilobanine A and E and (±)-angustilodine. J Org Chem 2013; 79:7-24. [PMID: 24319990 DOI: 10.1021/jo402495q] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A synthetic strategy has been developed culminating in stereoselective total syntheses of the small class of unusual monoterpenoid indole alkaloids exemplified by alstilobanines A (3) and E (2) and angustilodine (1). A pivotal step includes a novel intermolecular Michael-type addition of an indole ester dianion to a piperidine-derived nitrosoalkene to form the C15, C16 bond of the alkaloids. In addition, an application of the Romo protocol for effecting a stereoselective intramolecular nucleophile-assisted aldol-lactonization was employed, leading to a β-lactone incorporating the requisite cis-fused 2-azadecalin moiety and also setting the C15, C19, C20 relative stereochemistry of the metabolites. It was then possible to stereoselectively effect an aldolization of a dianion derived from this indole ester β-lactone intermediate with formaldehyde to introduce the requisite C16 hydroxymethyl group. Further manipulations of the system ultimately led to the three alkaloids in racemic form.
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Affiliation(s)
- Yiqing Feng
- Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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48
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Vellalath S, Van KN, Romo D. Direct Catalytic Asymmetric Synthesis of N-Heterocycles from Commodity Acid Chlorides by Employing α,β-Unsaturated Acylammonium Salts. Angew Chem Int Ed Engl 2013; 52:13688-93. [DOI: 10.1002/anie.201306050] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Indexed: 01/24/2023]
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49
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Vellalath S, Van KN, Romo D. Direct Catalytic Asymmetric Synthesis of N-Heterocycles from Commodity Acid Chlorides by Employing α,β-Unsaturated Acylammonium Salts. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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50
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Stark DG, Morrill LC, Yeh PP, Slawin AMZ, O'Riordan TJC, Smith AD. Isothiourea-Mediated One-Pot Synthesis of Functionalized Pyridines. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306786] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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