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Warren HT, Chow WL, Chytil M, Rasmussen K, Olson DE. Identification of Psychoplastogenic Tropanes Lacking Muscarinic Activity. J Med Chem 2024; 67:12410-12427. [PMID: 38979862 DOI: 10.1021/acs.jmedchem.4c01204] [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: 07/10/2024]
Abstract
Tropane-containing small molecules like scopolamine are a promising class of psychoplastogens. However, their potent antagonism of all muscarinic receptor subtypes presents the potential for undesirable anticholinergic side effects. In an effort to decouple their neuroplasticity-promoting effects from their muscarinic activity, we performed phenotypic structure-activity relationship studies across a variety of structurally distinct subclasses of tropanes. We discovered several novel tropanes capable of significantly increasing cortical neuronal growth while exhibiting drastically reduced activity at all muscarinic receptor subtypes compared to scopolamine.
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Affiliation(s)
- Hunter T Warren
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
- Institute for Psychedelics and Neurotherapeutics, University of California, Davis, Davis, California 95616, United States
| | - Winston L Chow
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
- Institute for Psychedelics and Neurotherapeutics, University of California, Davis, Davis, California 95616, United States
| | - Milan Chytil
- Delix Therapeutics, Inc., Bedford, Massachusetts 01730, United States
| | - Kurt Rasmussen
- Delix Therapeutics, Inc., Bedford, Massachusetts 01730, United States
| | - David E Olson
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
- Institute for Psychedelics and Neurotherapeutics, University of California, Davis, Davis, California 95616, United States
- Delix Therapeutics, Inc., Bedford, Massachusetts 01730, United States
- Department of Biochemistry & Molecular Medicine, School of Medicine, University of California, Davis, 2700 Stockton Blvd, Suite 2102, Sacramento, California 95817, United States
- Center for Neuroscience, University of California, Davis, 1544 Newton Ct, Davis, California 95618, United States
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2
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Gampe N, Ladocsi L, Fejős I, Boldizsár I, Darcsi A, Béni S. Enantioseparation and quantitative determination of two homologous beta amino acids found in Fabaceae plants. J Chromatogr A 2022; 1675:463089. [DOI: 10.1016/j.chroma.2022.463089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/21/2022] [Accepted: 04/23/2022] [Indexed: 10/18/2022]
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3
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Prandi C, Occhiato EG. From synthetic control to natural products: a focus on N-heterocycles. PEST MANAGEMENT SCIENCE 2019; 75:2385-2402. [PMID: 30624033 DOI: 10.1002/ps.5322] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
Natural products containing a N-heterocycle motif are widespread in nature and medicinal plants, in particular, have proved to be a source of almost unlimited N-derived structures with high molecular diversity. Because of their intrinsic potential for use in both biomedical and agricultural applications, there is a general need for new compounds and for the synthesis of 'natural-inspired' analogues. Importantly, transition of a natural product from discovery to a 'market lead' is associated with an increasingly challenging demand for more of the compound, which cannot be met by isolation from natural plant sources, often due to low extraction yields and uneven availability of the plant source itself. Synthesis remains the most reliable approach to provide valuable products for the market. In this review, a comprehensive overview of our contribution to synthetic access to N-derived natural products is given. Major strengths of the proposed methodologies are discussed critically. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | - Ernesto G Occhiato
- Department of Chemistry 'U. Schiff', Università degli Studi di Firenze, Sesto Fiorentino, Italy
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Mhaldar SN, Tilve SG. Total Synthesis of 2‐(2‐Ketoalkyl)‐piperidine Alkaloids (+)‐ Pelletierine, (+)‐Haloxynine and (‐)‐ N‐Methyl‐pelletierine via Regioselective Wacker Oxidation. ChemistrySelect 2019. [DOI: 10.1002/slct.201902115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shashank N. Mhaldar
- School of Chemical SciencesGoa University, Taleigao Plateau Goa 403206 India
| | - Santosh G. Tilve
- School of Chemical SciencesGoa University, Taleigao Plateau Goa 403206 India
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Zaidan RK, Evans P. Strategies for the Asymmetric Construction of Pelletierine and its Use in the Synthesis of Sedridine, Myrtine, and Lasubine. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900477] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Raed K. Zaidan
- School of Chemistry Centre for Synthesis and Chemical Biology University College Dublin Dublin D04, N2E5 Ireland
- Department of Chemistry College of Science University of Basra Iraq
| | - Paul Evans
- School of Chemistry Centre for Synthesis and Chemical Biology University College Dublin Dublin D04, N2E5 Ireland
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Chiou WH, Chen HY. Synthesis of dendrobatid alkaloid (+)-167B and (+)-209D and the investigation of diastereoselectivity using DFT calculations. RSC Adv 2017. [DOI: 10.1039/c6ra24960d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis of dendrobatid alkaloid (+)-167B and (+)-209D has been developed on the basis of the effective preparation of chiral tropinone 7-azabicyclo[3.2.1]octan-6-ol.
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Affiliation(s)
- Wen-Hua Chiou
- Department of Chemistry
- National Chung Hsing University
- Taichung
- ROC
| | - Hao-Yu Chen
- Department of Chemistry
- National Chung Hsing University
- Taichung
- ROC
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Veerasamy N, Carter RG. Synthesis of quinolizidine-containing lycopodium alkaloids and related natural products. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Barbier V, Marrot J, Couty F, David ORP. β-Lactams as Formal Dipoles through Amide-Bond Activation. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501342] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Morita N, Tsunokake T, Narikiyo Y, Harada M, Tachibana T, Saito Y, Ban S, Hashimoto Y, Okamoto I, Tamura O. Gold(I)/(III)-catalyzed synthesis of 2-substituted piperidines; valency-controlled cyclization modes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.115] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Scarpi D, Begliomini S, Prandi C, Oppedisano A, Deagostino A, Gómez-Bengoa E, Fiser B, Occhiato EG. Gold-Catalysed Synthesis of Exocyclic Vinylogous Amides and β-Amino Ketones: A Detailed Study on the 5-exo/6-endo-digSelectivity, Methodology and Scope. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500205] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Henry–Nef reaction: a practical and versatile chiral pool route to 2-substituted pyrrolidine and piperidine alkaloids. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.055] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Vincent G, Karila D, Khalil G, Sancibrao P, Gori D, Kouklovsky C. Stereodivergent Synthesis of Piperidine Alkaloids by Ring-Rearrangement Metathesis/Reductive Lactam Alkylation of Nitroso Diels-Alder Cycloadducts. Chemistry 2013; 19:9358-65. [DOI: 10.1002/chem.201300836] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 11/11/2022]
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Veerasamy N, Carlson EC, Collett ND, Saha M, Carter RG. Enantioselective approach to quinolizidines: total synthesis of cermizine D and formal syntheses of senepodine G and cermizine C. J Org Chem 2013; 78:4779-800. [PMID: 23627426 DOI: 10.1021/jo400324t] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The formal syntheses of C5-epi-senepodine G and C5-epi-cermizine C have been accomplished through a novel diastereoselective, intramolecular amide Michael addition process. The total synthesis of cermizine D has been achieved through use of an organocatalyzed, heteroatom Michael addition to access a common intermediate. Additional key steps of this sequence include a matched, diastereoselective alkylation with an iodomethylphenyl sulfide and sulfone-aldehyde coupling/reductive desulfurization sequence to combine the major subunits. The utility of a Hartwig-style C-N coupling has been explored on functionally dense coupling partners. Diastereoselective conjugate additions to α,β-unsaturated sulfones have been investigated, which provided the key sulfone intermediate in just six steps from commercially available starting materials. The formal syntheses of senepodine G and cermizine C have been accomplished through an intramolecular cyclization process of a N-Boc-protected piperidine sulfone.
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Affiliation(s)
- Nagarathanam Veerasamy
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, USA
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