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Rose C, Tomas-Grau RH, Zabala B, Michel PP, Brunel JM, Chehín R, Raisman-Vozari R, Ferrié L, Figadère B. C9-Functionalized Doxycycline Analogs as Drug Candidates to Prevent Pathological α-Synuclein Aggregation and Neuroinflammation in Parkinson's Disease Degeneration. ChemMedChem 2024; 19:e202300597. [PMID: 38526011 DOI: 10.1002/cmdc.202300597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Doxycycline, a semi-synthetic tetracycline, is a widely used antibiotic for treating mild-to-moderate infections, including skin problems. However, its anti-inflammatory and antioxidant properties, combined with its ability to interfere with α-synuclein aggregation, make it an attractive candidate for repositioning in Parkinson's disease. Nevertheless, the antibiotic activity of doxycycline restricts its potential use for long-term treatment of Parkinsonian patients. In the search for non-antibiotic tetracyclines that could operate against Parkinson's disease pathomechanisms, eighteen novel doxycycline derivatives were designed. Specifically, the dimethyl-amino group at C4 was reduced, resulting in limited antimicrobial activity, and several coupling reactions were performed at position C9 of the aromatic D ring, this position being one of the most reactive for introducing substituents. Using the Thioflavin-T assay, we found seven compounds were more effective than doxycycline in inhibiting α-synuclein aggregation. Furthermore, two of these derivatives exhibited better anti-inflammatory effects than doxycycline in a culture system of microglial cells used to model Parkinson's disease neuroinflammatory processes. Overall, through structure-activity relationship studies, we identified two newly designed tetracyclines as promising drug candidates for Parkinson's disease treatment.
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Affiliation(s)
- Clémence Rose
- BioCIS, CNRS, Université Paris-Saclay, 91400, Orsay, France
| | | | - Brenda Zabala
- Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Hôpital Pitié Salpêtrière, 75013, Paris, France
| | - Patrick Pierre Michel
- Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Hôpital Pitié Salpêtrière, 75013, Paris, France
| | - Jean-Michel Brunel
- UMR_MD1 Membranes et Cibles Thérapeutiques, U1261 INSERM, Aix-Marseille Université, 13385, Marseille, France
| | - Rosana Chehín
- IMMCA, CONICET-UNT-SIPROSA, Tucumán, 4000, Argentina
| | - Rita Raisman-Vozari
- Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Hôpital Pitié Salpêtrière, 75013, Paris, France
| | - Laurent Ferrié
- BioCIS, CNRS, Université Paris-Saclay, 91400, Orsay, France
| | - Bruno Figadère
- BioCIS, CNRS, Université Paris-Saclay, 91400, Orsay, France
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Ciss I, Seck M, Figadère B, Ferrié L. Advances Toward Amphidinolides C, F and U: Isolations, Synthetic Studies and Total Syntheses. Chemistry 2024; 30:e202400471. [PMID: 38407454 DOI: 10.1002/chem.202400471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Amphidinolides C, F, and U, including C2-C4 analogs, are highly cytotoxic marine macrolides, mainly isolated from dinoflagellates of the genus Amphidinium. All these polyketides share a 75 % or more similar structure, highlighted by a macrolactone ring, at least one trans-2,5-substituted-THF motif and a characteristic polyenic side chain. From their isolation and absolute configurational assignment, the total synthesis of these marine macrolides represented an intense challenge to the organic synthesis community over the last 15 years, with around 14 research groups engaged in this inspiring task. In the first part of this review, we present the different approaches to the isolation and characterization of these natural products, including the most recent analogs, which may cast doubt on the biogenetic origin of these compounds. The various synthetic approaches to the total synthesis of C, F, and U amphidinolides are presented in a second part, focusing on key reactions and/or innovative strategies. The review concludes in a third section summarizing the successful approaches leading to the total synthesis of one of the members of this amphidinolide subfamily.
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Affiliation(s)
- Ismaila Ciss
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
- Laboratoire de Chimie Organique et Chimie Thérapeutique, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar -, BP 5005, Dakar-Fann, Sénégal
| | - Matar Seck
- Laboratoire de Chimie Organique et Chimie Thérapeutique, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar -, BP 5005, Dakar-Fann, Sénégal
| | - Bruno Figadère
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
| | - Laurent Ferrié
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
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Carroll AR, Copp BR, Grkovic T, Keyzers RA, Prinsep MR. Marine natural products. Nat Prod Rep 2024; 41:162-207. [PMID: 38285012 DOI: 10.1039/d3np00061c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Covering: January to the end of December 2022This review covers the literature published in 2022 for marine natural products (MNPs), with 645 citations (633 for the period January to December 2022) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, the submerged parts of mangroves and other intertidal plants. The emphasis is on new compounds (1417 in 384 papers for 2022), together with the relevant biological activities, source organisms and country of origin. Pertinent reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. An analysis of NP structure class diversity in relation to biota source and biome is discussed.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia.
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Tanja Grkovic
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, and Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - Robert A Keyzers
- Centre for Biodiscovery, and School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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Mushtaq A, Zahoor AF. Mukaiyama aldol reaction: an effective asymmetric approach to access chiral natural products and their derivatives/analogues. RSC Adv 2023; 13:32975-33027. [PMID: 38025859 PMCID: PMC10631541 DOI: 10.1039/d3ra05058k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/21/2023] [Indexed: 12/01/2023] Open
Abstract
The Mukaiyama aldol reaction is generally a Lewis-acid catalyzed cross-aldol reaction between an aldehyde or ketone and silyl enol ether. It was first described by Mukaiyama in 1973, almost 5 decades ago, to achieve the enantioselective synthesis of β-hydroxy carbonyl compounds in high percentage yields. Mukaiyama aldol adducts play a pivotal role in the synthesis of various naturally occurring and medicinally important organic compounds such as polyketides, alkaloids, macrolides, etc. This review highlights the significance of the Mukaiyama aldol reaction towards the asymmetric synthesis of a wide range of biologically active natural products reported recently (since 2020).
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Affiliation(s)
- Aqsa Mushtaq
- Department of Chemistry, Government College University Faisalabad 38000 Faisalabad Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad 38000 Faisalabad Pakistan
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Chatterjee B, Mondal D, Bera S. Macrocyclization Strategies Towards the Synthesis of Amphidinolide Natural Products. ASIAN J ORG CHEM 2023. [DOI: 10.1002/ajoc.202200702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Bhaskar Chatterjee
- Department of Chemistry Nabadwip Vidyasagar College 741302 Nabadwip West Bengal India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat (India
| | - Smritilekha Bera
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat (India
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Decultot L, Clark JS. Synthetic Studies on Amphidinolide F: Exploration of Macrocycle Construction by Intramolecular Stille Coupling. Org Lett 2022; 24:7600-7604. [PMID: 36223230 DOI: 10.1021/acs.orglett.2c03045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Exploration of an ambitious new strategy for the total synthesis of the cytotoxic marine natural product amphidinolide F is described, which features fabrication of the core structure from four readily accessible fragments and macrocycle construction through C9-C10 bond formation by intramolecular Stille coupling between an alkenyl iodide and alkenyl stannane. Efficient stereoselective synthesis of each of the four building-blocks and subsequent coupling of them to produce the requisite cyclization precursor has been accomplished, but suitable conditions for high-yielding palladium-mediated closure of the macrocycle to produce the fully protected amphidinolide F ring system have yet to be identified.
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Affiliation(s)
- Ludovic Decultot
- School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K
| | - J Stephen Clark
- School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K
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Abstract
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The complete carbon
framework of the macrocyclic marine natural
product amphidinolide F has been prepared by a convergent synthetic
route in which three fragments of similar size and complexity have
been coupled. Key features of the syntheses of the fragments include
the stereoselective construction of the tetrahydrofuran in the C1–C9
fragment by oxonium ylide (free or metal-bound) formation and rearrangement
triggered by the direct generation of a rhodium carbenoid from 1-sulfonyl-1,2,3-triazole,
the highly diastereoselective aldol reaction between a boron enolate
and an aldehyde with 1,4-control to prepare the C10–C17 fragment,
and the formation of the tetrahydrofuran in the C18–C29 fragment
by intramolecular nucleophilic ring opening of an epoxide with a hydroxyl
group under acidic conditions.
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Affiliation(s)
- Filippo Romiti
- School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K
| | - Ludovic Decultot
- School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K
| | - J Stephen Clark
- School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K
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