1
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Li QZ, Hou SH, Kang JC, Lian PF, Hao Y, Chen C, Zhou J, Ding TM, Zhang SY. Bioinspired Palladium-Catalyzed Intramolecular C(sp 3 )-H Activation for the Collective Synthesis of Proline Natural Products. Angew Chem Int Ed Engl 2022; 61:e202207088. [PMID: 35751877 DOI: 10.1002/anie.202207088] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Indexed: 12/18/2022]
Abstract
Bioinspired palladium-catalyzed intramolecular cyclization of amino acid derivatives containing a vinyl iodide moiety by C-H activation enabled rapid access to a wide range of functionalized proline derivatives with an exocyclic olefin. To demonstrate the practicality of this methodology, the functionalized prolines were used as intermediates for the synthesis of several natural products: lucentamycin A, oxotomaymycin, oxoprothracarcin, and barmumycin.
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Affiliation(s)
- Quan-Zhe Li
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.,School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Si-Hua Hou
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.,School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jun-Chen Kang
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Peng-Fei Lian
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yu Hao
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Chao Chen
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jia Zhou
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Tong-Mei Ding
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shu-Yu Zhang
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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2
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Shen SM, Appendino G, Guo YW. Pitfalls in the structural elucidation of small molecules. A critical analysis of a decade of structural misassignments of marine natural products. Nat Prod Rep 2022; 39:1803-1832. [PMID: 35770685 DOI: 10.1039/d2np00023g] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Covering: July 2010 to August 2021This article summarizes more than 200 cases of misassigned marine natural products reported between July 2010 and August 2021, sorting out errors according to the structural elements. Based on a comparative analysis of the original and the revised structures, major pitfalls still plaguing the structural elucidation of small molecules were identified, emphasizing the role of total synthesis, crystallography, as well as chemical- and biosynthetic logic to complement spectroscopic data. Distinct "trends" in natural product misassignment are evident between compounds of marine and plant origin, with an overall much lower incidence of "impossible" structures within misassigned marine natural products.
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Affiliation(s)
- Shou-Mao Shen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. .,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Giovanni Appendino
- Dipartimento di Scienze del Farmaco, Universitá degli Studi del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. .,Drug Discovery Shandong Laboratory, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
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3
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Li QZ, Hou SH, Kang JC, Lian PF, Hao Y, Chen C, Zhou J, Ding TM, Zhang SY. Bioinspired Palladium‐Catalyzed Intramolecular C(sp3)−H Activation for the Collective Synthesis of Proline Natural Products. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Quan-Zhe Li
- Shanghai Jiao Tong University Chemistry CHINA
| | - Si-Hua Hou
- SJTU: Shanghai Jiao Tong University CHEMISTRY CHINA
| | | | | | - Yu Hao
- SJTU: Shanghai Jiao Tong University Chemistry CHINA
| | - Chao Chen
- SJTU: Shanghai Jiao Tong University Chemistry CHINA
| | - Jia Zhou
- SJTU: Shanghai Jiao Tong University Chemistry CHINA
| | | | - Shu-Yu Zhang
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering 800 Dongchuan RoadB329 Chemsitry BuildingShanghai Jiao Tong University 200240 Shanghai CHINA
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4
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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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5
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Highly efficient and enantioselective syntheses of (2S,3R)-3-alkyl- and alkenylglutamates from Fmoc-protected Garner's aldehyde. Amino Acids 2020; 52:987-998. [PMID: 32621203 DOI: 10.1007/s00726-020-02868-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/25/2020] [Indexed: 02/06/2023]
Abstract
A 6-step enantioselective synthesis of (2S,3R)-3-alkyl/alkenylglutamates, including the biologically significant amino acid, (2S,3R)-3-methylglutamate, protected for Fmoc SPPS, is reported. Overall yields range from 52-65%. Key to the success of these syntheses was the development of a high-yielding 2-step synthesis of Fmoc Garner's aldehyde followed by a Horner-Wadsworth-Emmons reaction to give the corresponding Fmoc Garner's enoate in a 94% yield. The diastereoselective 1,4-addition of lithium dialkylcuprates to the Fmoc Garner's enoate was explored. Significant decomposition occurred when using lithium diethylcuprate and conditions previously reported for the 1,4-addition of lithium dialkylcuprates to Boc or Cbz-protected Garner's enoate. An optimization study of this reaction resulted in a robust set of conditions that addressed the shortcomings of previously reported conditions. Under these conditions, highly diastereoselective (> 20:1 in most cases) 1,4-addition reactions of lithium dialkyl/dialkenylcuprates to the Fmoc Garner's enoate were achieved in 76-99% yield. The resulting 1,4-addition products were easily converted into the Fmoc-(2S,3R)-3-alkyl/alkenylglutamates in two steps.
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6
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Álvarez-Calero JM, Ruiz E, López-Pérez JL, Jaraíz M, Rubio JE, Jorge ZD, Suárez M, Massanet GM. 15-Hydroxygermacranolides as Sources of Structural Diversity: Synthesis of Sesquiterpene Lactones by Cyclization and Rearrangement Reactions. Experimental and DFT Study. J Org Chem 2018; 83:5480-5495. [PMID: 29694044 DOI: 10.1021/acs.joc.8b00407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A study on the electrophile-induced rearrangement of two 15-hydroxygermacranolides, salonitenolide and artemisiifolin, was carried out. These compounds underwent electrophilic intramolecular cyclizations or acid-mediated rearrangements to give sesquiterpene lactones with different skeletons such as eudesmanolides, guaianolides, amorphanolides, or other germacranolides. The cyclization that gives guaianolides can be considered a biomimetic route to this type of sesquiterpene lactones. The use of acetone as a solvent changes the reactivity of the two starting germacranolides to the acid catalysts, with a 4,15-diol acetonide being the main product obtained. The δ-amorphenolide obtained by intramolecular cyclization of this acetonide is a valuable intermediate for accessing the antimalarials artemisinin and its derivatives. Mechanistic proposals for the transformations are raised, and to provide support them, quantum chemical calculations [DFT B3LYP/6-31+G(d,p) level] were undertaken.
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Affiliation(s)
- José María Álvarez-Calero
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Cádiz , Puerto Real, Cádiz 11510 , Spain
| | - Enrique Ruiz
- Departamento de Química, Instituto de Ciencias Básicas , Universidad Técnica de Manabí (UTM) , Avenida Urbina y Che Guevara , Portoviejo , Manabí 130103 , Ecuador.,Laboratorio de Síntesis Orgánica, Facultad de Química , Universidad de La Habana , La Habana 10400 , Cuba
| | - José Luis López-Pérez
- Departamento de Farmacología, Facultad de Medicina , Universidad de Panamá , Ciudad de Panamá 3366 , República de Panamá.,Departamento de Ciencias Farmacéuticas, IBSAL-CIETUS , Universidad de Salamanca , Avda. Campo Charro s/n , Salamanca 37007 , Spain
| | - Martín Jaraíz
- Departamento de Electrónica , Universidad de Valladolid , Paseo Belén 15 , Valladolid 47011 , Spain
| | - José E Rubio
- Departamento de Electrónica , Universidad de Valladolid , Paseo Belén 15 , Valladolid 47011 , Spain
| | - Zacarías D Jorge
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Cádiz , Puerto Real, Cádiz 11510 , Spain
| | - Margarita Suárez
- Laboratorio de Síntesis Orgánica, Facultad de Química , Universidad de La Habana , La Habana 10400 , Cuba
| | - Guillermo M Massanet
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Cádiz , Puerto Real, Cádiz 11510 , Spain
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7
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Takahashi K, Fukushima K, Tsubuki M, Honda T. The formal synthesis of lucentamycin A: Construction of cis -2,3-disubstituted pyrrolidine core by application of SmI 2 -DMPU system. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.076] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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α-Amino acids with electrically charged and polar uncharged side chains as chiral synthon: Application to the synthesis of bioactive alkaloids (1996-Dec, 2013). Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Berthet M, Martinez J, Parrot I. MgI
2
‐chemoselective cleavage for removal of amino acid protecting groups: A fresh vision for peptide synthesis. Pept Sci (Hoboken) 2017; 108. [DOI: 10.1002/bip.22908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/28/2016] [Accepted: 07/04/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Mathéo Berthet
- Institut des Biomolécules Max Mousseron, IBMM UMR‐5247 CNRS, Université de Montpellier, ENSCMCC17‐03, Pl. E. Bataillon, 34095 Montpellier Cedex 5 France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron, IBMM UMR‐5247 CNRS, Université de Montpellier, ENSCMCC17‐03, Pl. E. Bataillon, 34095 Montpellier Cedex 5 France
| | - Isabelle Parrot
- Institut des Biomolécules Max Mousseron, IBMM UMR‐5247 CNRS, Université de Montpellier, ENSCMCC17‐03, Pl. E. Bataillon, 34095 Montpellier Cedex 5 France
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10
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Bennur T, Ravi Kumar A, Zinjarde S, Javdekar V. Nocardiopsis
species: a potential source of bioactive compounds. J Appl Microbiol 2015; 120:1-16. [DOI: 10.1111/jam.12950] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/16/2015] [Accepted: 07/07/2015] [Indexed: 12/12/2022]
Affiliation(s)
- T. Bennur
- Institute of Bioinformatics and Biotechnology; Savitribai Phule Pune University; Pune India
| | - A. Ravi Kumar
- Institute of Bioinformatics and Biotechnology; Savitribai Phule Pune University; Pune India
| | - S.S. Zinjarde
- Institute of Bioinformatics and Biotechnology; Savitribai Phule Pune University; Pune India
| | - V. Javdekar
- Department of Biotechnology; Abasaheb Garware College; Pune India
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11
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Smits G, Kinens A, Zemribo R. Ireland-Claisen Rearrangement of 6-Methylene-1,4-oxazepan-2-ones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500918] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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13
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Abstract
This review covers the literature published in 2012 for marine natural products, with 1035 citations (673 for the period January to December 2012) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1241 for 2012), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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14
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Passiniemi M, Koskinen AMP. Garner's aldehyde as a versatile intermediate in the synthesis of enantiopure natural products. Beilstein J Org Chem 2013; 9:2641-59. [PMID: 24367429 PMCID: PMC3869249 DOI: 10.3762/bjoc.9.300] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 10/29/2013] [Indexed: 12/27/2022] Open
Abstract
Since its introduction to the synthetic community in 1984, Garner's aldehyde has gained substantial attention as a chiral intermediate for the synthesis of numerous amino alcohol derivatives. This review presents some of the most successful carbon chain elongation reactions, namely carbonyl alkylations and olefinations. The literature is reviewed with particular attention on understanding how to avoid the deleterious epimerization of the existing stereocenter in Garner's aldehyde.
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Affiliation(s)
- Mikko Passiniemi
- Aalto-University, School of Chemical Technology, Department of Chemistry P.O. Box 16100 (Kemistintie 1), FI-00076 Aalto, Finland
| | - Ari MP Koskinen
- Aalto-University, School of Chemical Technology, Department of Chemistry P.O. Box 16100 (Kemistintie 1), FI-00076 Aalto, Finland
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