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Derstine BC, Cook AJ, Collings JD, Gair J, Saurí J, Kwan EE, Burns NZ. Total Synthesis of (+)-Discorhabdin V. Angew Chem Int Ed Engl 2024; 63:e202315284. [PMID: 37956221 DOI: 10.1002/anie.202315284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/15/2023]
Abstract
The discorhabdin natural products are a large subset of pyrroloiminoquinone alkaloids with a myriad of biological activities. Despite garnering much synthetic attention, few members have thus far been completed, particularly those featuring a bridging carbon-nitrogen bond that is found in numerous discorhabdins, including discorhabdin V. Herein we report the first total synthesis and full stereochemical assignment of (+)-discorhabdin V. To access the pyrroloiminoquinone we developed a convergent N-alkylation/oxidative aminocyclization/bromination cascade that joins two key components, which are both made on multigram scale. An intramolecular Heck reaction then forms the quaternary carbon center in an intermediate containing the carbon-nitrogen bridge, and a reductive N,O-acetal cyclization sequence introduces the final piperidine ring. Furthermore, we have established the relative configuration of (+)-discorhabdin V through experimental NOESY data and DP4 NMR probability calculations. The absolute configuration of the natural product has also been determined by circular dichroism and the use of an amino acid derived chiral starting material. Our work represents one of only two reports of a total synthesis of a nitrogen-bridged discorhabdin and paves the way for future biological evaluation of such compounds.
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Affiliation(s)
| | - Alina J Cook
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - James D Collings
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | | | - Josep Saurí
- Institut Químic de Sarrià (IQS), 08017, Barcelona, Catalonia, Spain
| | | | - Noah Z Burns
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
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Zorrilla JG, Evidente A. Structures and Biological Activities of Alkaloids Produced by Mushrooms, a Fungal Subgroup. Biomolecules 2022; 12:biom12081025. [PMID: 35892335 PMCID: PMC9332295 DOI: 10.3390/biom12081025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/11/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
Alkaloids are a wide family of basic N-containing natural products, whose research has revealed bioactive compounds of pharmacological interest. Studies on these compounds have focused more attention on those produced by plants, although other types of organisms have also been proven to synthesize bioactive alkaloids, such as animals, marine organisms, bacteria, and fungi. This review covers the findings of the last 20 years (2002–2022) related to the isolation, structures, and biological activities of the alkaloids produced by mushrooms, a fungal subgroup, and their potential to develop drugs and agrochemicals. In some cases, the synthesis of the reviewed compounds and structure−activity relationship studies have been described.
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Affiliation(s)
- Jesús G. Zorrilla
- Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), School of Science, University of Cadiz, C/Republica Saharaui, s/n, 11510 Puerto Real, Spain
- Department of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario Monte Sant’Angelo, Via Cintia 4, 80126 Napoli, Italy;
- Correspondence:
| | - Antonio Evidente
- Department of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario Monte Sant’Angelo, Via Cintia 4, 80126 Napoli, Italy;
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Noro T, Sakata J, Tokuyama H. Synthetic studies on discorhabdin V: Construction of the A–F hexacyclic framework. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Singh N, Singh S, Kohli S, Singh A, Asiki H, Rathee G, Chandra R, Anderson EA. Recent progress in the total synthesis of pyrrole-containing natural products (2011–2020). Org Chem Front 2021. [DOI: 10.1039/d0qo01574a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review discusses total syntheses of pyrrole-containing natural products over the last ten years, highlighting recent advances in the chemistry of pyrroles in the context of their innate reactivity, and their preparation in complex settings.
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Affiliation(s)
- Nidhi Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Snigdha Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Sahil Kohli
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Aarushi Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Hannah Asiki
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Garima Rathee
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi 110007, India
- Dr B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Edward A. Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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Himstedt R, Wagner S, Jaeger RJR, Lieunang Watat M, Backenköhler J, Rupcic Z, Stadler M, Spiteller P. Formaldehyde as a Chemical Defence Agent of Fruiting Bodies of Mycena rosea and its Role in the Generation of the Alkaloid Mycenarubin C. Chembiochem 2020; 21:1613-1620. [PMID: 31972067 PMCID: PMC7318143 DOI: 10.1002/cbic.201900733] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Indexed: 12/25/2022]
Abstract
Mycenarubin C, a previously unknown red pyrroloquinoline alkaloid, was isolated from fruiting bodies of the mushroom Mycena rosea and its structure was elucidated mainly by NMR spectroscopy and mass spectrometry. Unlike mycenarubin A, the major pyrroloquinoline alkaloid in fruiting bodies of M. rosea, mycenarubin C, contains an eight-membered ring with an additional C1 unit that is hitherto unprecedented for pyrroloquinoline alkaloids known in nature. Incubation of mycenarubin A with an excess of formaldehyde revealed that mycenarubin C was generated nearly quantitatively from mycenarubin A. An investigation into the formaldehyde content of fresh fruiting bodies of M. rosea showed the presence of considerable amounts of formaldehyde, with values of 5 μg per gram of fresh weight in fresh fruiting bodies. Although mycenarubin C did not show bioactivity against selected bacteria and fungi, formaldehyde inhibits the growth of the mycoparasite Spinellus fusiger at concentrations present in fruiting bodies of M. rosea. Therefore, formaldehyde might play an ecological role in the chemical defence of M. rosea against S. fusiger. In turn, S. fusiger produces gallic acid-presumably to detoxify formaldehyde by reaction of this aldehyde with amino acids and gallic acid to Mannich adducts.
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Affiliation(s)
- Rieke Himstedt
- Institut für Organische und Analytische ChemieUniversität BremenLeobener Strasse 728359BremenGermany
| | - Silke Wagner
- Institut für Organische und Analytische ChemieUniversität BremenLeobener Strasse 728359BremenGermany
| | - Robert J. R. Jaeger
- Institut für Organische und Analytische ChemieUniversität BremenLeobener Strasse 728359BremenGermany
| | | | - Jana Backenköhler
- Institut für Organische und Analytische ChemieUniversität BremenLeobener Strasse 728359BremenGermany
| | - Zeljka Rupcic
- Mikrobielle WirkstoffeHelmholtz-Zentrum für InfektionsforschungInhoffenstrasse 738124BraunschweigGermany
| | - Marc Stadler
- Mikrobielle WirkstoffeHelmholtz-Zentrum für InfektionsforschungInhoffenstrasse 738124BraunschweigGermany
| | - Peter Spiteller
- Institut für Organische und Analytische ChemieUniversität BremenLeobener Strasse 728359BremenGermany
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Guo S, Zhang Z, Xu J, Li S, Fu Z, Cai H. Acid and 1, 2‐Dichloroethane Co‐Promoted Substitution of the Amino Groups in Gramine and its Analogues with Trialkyl Phosphites. ChemistrySelect 2019. [DOI: 10.1002/slct.201904138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shengmei Guo
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Zhebin Zhang
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Jianxin Xu
- The Second Clinical Medical CollegeNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Sen Li
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Zhengjiang Fu
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Hu Cai
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
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Complexes of damirone A/C, batzelline A/D, makaluvamine O and makaluvone with guanidinium and magnesium cations: a theoretical study. Struct Chem 2019. [DOI: 10.1007/s11224-019-01325-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Schrey H, Backenköhler J, Kogler H, Plaumann M, Spiteller P. Aminotenuazonic Acid: Isolation, Structure Elucidation, Total Synthesis and Herbicidal Activity of a New Tetramic Acid from Fruiting Bodies ofLaccariaSpecies. Chemistry 2019; 25:10333-10341. [DOI: 10.1002/chem.201901405] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/24/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Hedda Schrey
- Institut für Organische und Analytische ChemieUniversität Bremen Leobener Straße 7 28359 Bremen Germany
| | - Jana Backenköhler
- Institut für Organische und Analytische ChemieUniversität Bremen Leobener Straße 7 28359 Bremen Germany
| | - Herbert Kogler
- KITInstitut für Biologische Grenzflächen 4, Magnetische Resonanz Postfach 3640 76021 Karlsruhe Germany
| | - Markus Plaumann
- Institut für Biometrie und Medizinische InformatikOtto von Guericke Universität Magdeburg Leipziger Straße 44 (Haus 2) 39120 Magdeburg Germany
| | - Peter Spiteller
- Institut für Organische und Analytische ChemieUniversität Bremen Leobener Straße 7 28359 Bremen Germany
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Smith MW, Falk ID, Ikemoto H, Burns NZ. A Convenient C-H Functionalization Platform for Pyrroloiminoquinone Alkaloid Synthesis. Tetrahedron 2019; 75:3366-3370. [PMID: 31889735 DOI: 10.1016/j.tet.2019.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pyrroloiminoquinone alkaloids represent a structurally intriguing class of natural products that display an array of useful biological properties. Here, we present a versatile and scalable platform for the synthesis of this diverse family - and in particular the antitumor discorhabdins - built upon sequential selective C-H functionalization of tryptamine. The utility of this strategy is showcased through short formal syntheses of damirones A-C, makaluvamines D and I, and discorhadbin E. Additionally, we describe efforts to develop the first catalytic asymmetric entry to the discorhabdin subclass.
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Affiliation(s)
- Myles W Smith
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Isaac D Falk
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Hideya Ikemoto
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Noah Z Burns
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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