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Harmange Magnani C, Hernández-Meléndez JR, Tantillo DJ, Maimone TJ. Total Synthesis of Altemicidin: A Surprise Ending for a Monoterpene Alkaloid. JACS AU 2023; 3:2883-2893. [PMID: 37885570 PMCID: PMC10598567 DOI: 10.1021/jacsau.3c00417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 10/28/2023]
Abstract
Monoterpene alkaloids encompass distinct chemical diversity and wide-ranging bioactivity. Their compact complexity has made them popular as synthetic targets and has inspired many distinct strategies and tactics in the field of heterocyclic chemistry. This article documents the evolution of a synthetic program aimed at accessing the unusual sulfonamide-containing natural product altemicidin, which was generally believed to be a monoterpene alkaloid throughout our entire synthetic investigations but has recently been found to originate through an unexpected and quite disparate biosynthetic pathway. By leveraging a pyridine dearomatization/cycloaddition strategy, we developed a concise pathway to the 5,6-fused bicyclic azaindane core and, after significant experimentation, an ultimate synthesis of altemicidin itself. Tactics to productively manipulate the multiple functional groups present on this highly polar scaffold proved challenging but were eventually realized via several carefully orchestrated and chemoselective transformations-investments that paid dividends in the form of significantly shorter chemical synthesis. Surprisingly, the bond-forming logic between our presumed abiotic synthetic strategy to this alkaloid class and its subsequently identified biosynthetic pathway is eerily similar.
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Affiliation(s)
- Claire
S. Harmange Magnani
- Department
of Chemistry, University of California,
Berkeley, 826 Latimer Hall, Berkeley, California 94720, United States
| | - José R. Hernández-Meléndez
- Department
of Chemistry, University of California,
Berkeley, 826 Latimer Hall, Berkeley, California 94720, United States
| | - Dean J. Tantillo
- Department
of Chemistry, University of California−Davis; 1 Shields Avenue, Davis, California 95616, United States
| | - Thomas J. Maimone
- Department
of Chemistry, University of California,
Berkeley, 826 Latimer Hall, Berkeley, California 94720, United States
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2
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Ueno A, Takimoto M, Hou Z. Synthesis of 2-aryloxy butenoates by copper-catalysed allylic C–H carboxylation of allyl aryl ethers with carbon dioxide. Org Biomol Chem 2017; 15:2370-2375. [DOI: 10.1039/c7ob00341b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
2-Aryloxy butenoates were efficiently synthesized by deprotonative alumination of ally aryl ethers and subsequent Cu-catalysed carboxylation with CO2.
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Affiliation(s)
- Atsushi Ueno
- Advanced Catalysis Research Group
- RIKEN Center for Sustainable Resource Science
- Wako
- Japan
| | - Masanori Takimoto
- Advanced Catalysis Research Group
- RIKEN Center for Sustainable Resource Science
- Wako
- Japan
- Organometallic Chemistry Laboratory
| | - Zhaomin Hou
- Advanced Catalysis Research Group
- RIKEN Center for Sustainable Resource Science
- Wako
- Japan
- Organometallic Chemistry Laboratory
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Sakakura A, Yamada H, Ishihara K. α-Heterosubstituted β-Alkylacroleins as Useful Multisubstituted Dienophiles for Enantioselective Diels-Alder Reactions. ASIAN J ORG CHEM 2012. [DOI: 10.1002/ajoc.201200054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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5
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Siodłak D, Grondys J, Broda MA. The conformational properties of α,β-dehydroamino acids with a C-terminal ester group. J Pept Sci 2011; 17:690-9. [PMID: 21805538 DOI: 10.1002/psc.1390] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 05/31/2011] [Accepted: 06/03/2011] [Indexed: 11/06/2022]
Abstract
α,β-Dehydroamino acid esters occur in nature. To investigate their conformational properties, a systematic theoretical analysis was performed on the model molecules Ac-ΔXaa-OMe [ΔXaa = ΔAla, (E)-ΔAbu, (Z)-ΔAbu, ΔVal] at the B3LYP/6-311+ + G(d,p) level in the gas phase as well as in chloroform and water solutions with the self-consistent reaction field-polarisable continuum model method. The Fourier transform IR spectra in CCl(4) and CHCl(3) have been analysed as well as the analogous solid state conformations drawn from The Cambridge Structural Database. The ΔAla residue has a considerable tendency to adopt planar conformations C5 (ϕ, ψ ≈ - 180°, 180°) and β2 (ϕ, ψ ≈ - 180°, 0°), regardless of the environment. The ΔVal residue prefers the conformation β2 (ϕ, ψ ≈ - 120°, 0°) in a low polar environment, but the conformations α (ϕ, ψ ≈ - 55°, 35°) and β (ϕ, ψ ≈ - 55°, 145°) when the polarity increases. The ΔAbu residues reveal intermediate properties, but their conformational dispositions depend on configuration of the side chain of residue: (E)-ΔAbu is similar to ΔAla, whereas (Z)-ΔAbu to ΔVal. Results indicate that the low-energy conformation β2 is the characteristic feature of dehydroamino acid esters. The studied molecules constitute conformational patterns for dehydroamino acid esters with various side chain substituents in either or both Z and E positions.
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Affiliation(s)
- Dawid Siodłak
- Faculty of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland.
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6
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Gulevich AV, Zhdanko AG, Orru RVA, Nenajdenko VG. Isocyanoacetate Derivatives: Synthesis, Reactivity, and Application. Chem Rev 2010; 110:5235-331. [DOI: 10.1021/cr900411f] [Citation(s) in RCA: 470] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anton V. Gulevich
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Alexander G. Zhdanko
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Valentine G. Nenajdenko
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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Kiss L, Mangelinckx S, Sillanpää R, Fülöp F, De Kimpe N. An Easy Stereoselective Access to β,γ-Aziridino α-Amino Ester Derivatives via Mannich Reaction of Benzophenone Imines of Glycine Esters with N-Sulfonyl α-Chloroaldimines. J Org Chem 2007; 72:7199-206. [PMID: 17705431 DOI: 10.1021/jo0710634] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mannich-type addition of benzophenone imine glycinates across newly synthesized N-(p-toluenesulfonyl) alpha-chloroaldimines afforded gamma-chloro-alpha,beta-diamino ester derivatives with moderate diastereoselectivity as separable mixtures of anti and syn diastereomers. The gamma-chloro-alpha,beta-diamino esters were efficiently cyclized under basic conditions to the corresponding beta,gamma-aziridino alpha-amino ester derivatives, representing a new class of conformationally constrained heterocyclic alpha,beta-diamino acid derivatives. The relative configuration of the aziridines was determined via X-ray diffraction analysis. Mechanisms and intermediate transition states to explain the stereochemical outcome of the Mannich reaction with different substrates or under different conditions are proposed. The synthetic importance of the beta,gamma-aziridino alpha-amino ester derivatives is demonstrated by their conversion into the corresponding Boc-protected derivatives and ring opening reactions to alpha,beta-diamino esters and a gamma-amino alpha,beta-unsaturated amino ester.
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Affiliation(s)
- Loránd Kiss
- Department of Organic Chemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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Kang SH, Kang SY, Lee HS, Buglass AJ. Total synthesis of natural tert-alkylamino hydroxy carboxylic acids. Chem Rev 2006; 105:4537-58. [PMID: 16351053 DOI: 10.1021/cr040608g] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sung Ho Kang
- Center for Molecular Design and Synthesis, Department of Chemistry, School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejeon
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A comparative study on the 1,3-dipolar cycloadditions of diazomethane and bis(diisopropylamino)phosphinodiazomethane to chiral electron-deficient olefins: reactivity and diastereoselectivity. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0957-4166(02)00714-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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1,3-Dipolar cycloadditions of diazomethane to chiral electron-deficient olefins: the origin of the pi-facial diastereoselection. J Org Chem 2000; 65:388-96. [PMID: 10813946 DOI: 10.1021/jo991227j] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The stereochemical outcome of diazomethane cycloadditions to several chiral electron-deficient olefins has been investigated in order to establish the origin of the pi-facial diastereoselection. Nitro olefins, vinyl sulfones, enoates, and 2-amino enoates have been used for such a purpose. These substrates have been prepared from D-glyceraldehyde acetonide through Wittig-type condensations and present an alkoxy substituent, provided by the bulky dioxolane ring, attached to the stereogenic allylic carbon. Syn-adducts have been obtained in all cases as the major isomers, independently of the Z/E stereochemistry of the double bond and the number and the nature of the substituents, the chirality of the asymmetric allylic carbon being the only thing responsible for the diastereoselection. Theoretical calculations show that steric hindrance due to the bulky dioxolane group is the main factor governing the preference for the syn-attack of diazomethane to the olefinic double bond.
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12
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Alvarez-Ibarra C, Csákÿ AG, Elena Martín M, Luz Quiroga M. Study of the asymmetric synthesis of (Z)-γ-substituted α,β-dihehydroglutamates from N-alkylideneglycinates. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00357-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Aggarwal VK, Ali A, Coogan MP. The development and use of ketene equivalents in [4+2] cycloadditions for organic synthesis. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(98)00924-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Alvarez-Ibarra C, Csákÿ AG, Murcia MC. Diastereoselective Aldol Reactions of (Z)-N-[Bis(methylthio)methylene]-α,β-didehydroglutamates. J Org Chem 1998. [DOI: 10.1021/jo980634c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carlos Alvarez-Ibarra
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Aurelio G. Csákÿ
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - M. Carmen Murcia
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
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Barluenga J, Canteli RM, Flórez J, García-Granda S, Gutiérrez-Rodríguez A, Martín E. Cyclic BF2 Adducts of Functionalized Fischer Vinylcarbene Complexes: Preparation and Stereoselective Diels−Alder Reactions with 2-Amino 1,3-Dienes. J Am Chem Soc 1998. [DOI: 10.1021/ja972588o] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José Barluenga
- Contribution from the Instituto Universitario de Química Organometálica “Enrique Moles”, Unidad Asociada al CSIC, and Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Rosa-María Canteli
- Contribution from the Instituto Universitario de Química Organometálica “Enrique Moles”, Unidad Asociada al CSIC, and Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Josefa Flórez
- Contribution from the Instituto Universitario de Química Organometálica “Enrique Moles”, Unidad Asociada al CSIC, and Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Santiago García-Granda
- Contribution from the Instituto Universitario de Química Organometálica “Enrique Moles”, Unidad Asociada al CSIC, and Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Angel Gutiérrez-Rodríguez
- Contribution from the Instituto Universitario de Química Organometálica “Enrique Moles”, Unidad Asociada al CSIC, and Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Eduardo Martín
- Contribution from the Instituto Universitario de Química Organometálica “Enrique Moles”, Unidad Asociada al CSIC, and Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
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16
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Ibuka T, Nakai K, Akaji M, Tamamura H, Fujii N, Yamamoto Y. An aza-Payne rearrangement-epoxide ring opening reaction of 2-aziridinemethanols in a one-pot manner: A regio- and stereoselective synthetic route to diastereomerically pure N-protected 1,2-amino alcohols. Tetrahedron 1996. [DOI: 10.1016/0040-4020(96)00682-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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High-pressure and thermally induced asymmetric diels-alder cycloadditions of heterosubstituted dienes to homochiral α,β-didehydro amino acid derivatives. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0957-4166(95)00429-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Node M, Nishide K, Imazato H, Kurosaki R, Inoue T, Ikariya T. Exo selective Diels–Alder reaction of nitroolefins with Danishefsky's diene. Chem Commun (Camb) 1996. [DOI: 10.1039/cc9960002559] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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A one-pot aza-Payne rearrangement-epoxide ring opening reaction of 2-aziridinemethanols: A regio- and stereoselective synthetic route to diastereomerically pure 1,2-amino alcohols. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)01203-t] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Galley G, Pätzel M, Jones P. Diastereofacial selectivity of the cycloaddition of diazo compounds to enones. Tetrahedron 1995. [DOI: 10.1016/0040-4020(94)01049-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Fujii N, Nakai K, Tamamura H, Otaka A, Mimura N, Miwa Y, Taga T, Yamamoto Y, Ibuka T. SN2′ Ring opening of aziridines bearing an α,β-unsaturated ester group with organocopper reagents. A new stereoselective synthetic route to (E)-alkene dipeptide isosteres. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p19950001359] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Reetz MT, Röhrig D, Harms K, Frenking G. Stereoselective synthesis of β-amino hydroxylamines. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)78492-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Effenberger F, Kühlwein J, Baumgartner C. Aminosäuren, 18. Darstellung und Reaktionen von 2-Isocyanato-2-alkensäureestern. ACTA ACUST UNITED AC 1994. [DOI: 10.1002/jlac.199419941105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Pyne SG, Safaei-G J, Hockless DC, Skelton BW, Sobolev AN, White AH. Exo diastereoselective Diels-Alder reactions of (R)-2-phenyl-4-methylene-oxazolidin-5-one. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)80808-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Curran DP, Abraham AC. 1,2-Asymmetric induction in radical reactions. Deuteration and allylation reactions of β-oxy-o-Iodoanilides. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)80401-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Curran DP, Ramamoorthy P. 1,2-Asymmetric induction in radical reactions. Deuteration and allylation reactions of β-oxy-α-bromo esters. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)80402-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Tanaka K, Uno H, Osuga H, Suzuki H. Stereocontrolled diels-alder reactions with chiral tricyclic oxazolidinones. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/s0957-4166(00)80165-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Kende AS, Brands K, Blass B. A novel dyatropic rearrangement of γ-N,N-dibenzylamino α,β-dehydro N-formylamino acid esters. Tetrahedron Lett 1993. [DOI: 10.1016/s0040-4039(00)61624-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Remote substituent effects on regioselectivity in rhodium(I)-catalyzed hydroborations of norbornenes. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)61080-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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