1
|
Labra-Vázquez P, Ochoa ME, Alfonso-Herrera LA, Vera MA, Farfán N, Santillan R. A Steroidal Molecular Rotor with Fast Solid‐State Dynamics Obtained by Crystal Engineering: Role of the Polarity of the Stator. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pablo Labra-Vázquez
- UNAM Facultad de Quimica: Universidad Nacional Autonoma de Mexico Facultad de Quimica Química orgánica 04510 Ciudad de México, México MEXICO
| | - María E. Ochoa
- Centro de Investigacion y de Estudios Avanzados Unidad Zacatenco: Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional Química Apdo. Postal 14-740, 07000, Ciudad de México, México MEXICO
| | - Luis A. Alfonso-Herrera
- Universidad Autónoma de Nuevo León: Universidad Autonoma de Nuevo Leon Departamento de Ecomateriales y Energía Av. Universidad S/N Ciudad Universitaria, San Nicolás de los Garza, Nuevo León, MEXICO
| | - Marco A. Vera
- Universidad Autonoma Metropolitana Iztapalapa Lab. de RMN MEXICO
| | - Norberto Farfán
- UNAM Facultad de Quimica: Universidad Nacional Autonoma de Mexico Facultad de Quimica Química orgánica 04510 Ciudad de México, México MEXICO
| | - Rosa Santillan
- Centro de Investigacion y de Estudios Avanzados Unidad Zacatenco: Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional Química Apdo. Postal 14-740, 07000, Ciudad de México, México 07000 Ciudad de México MEXICO
| |
Collapse
|
2
|
Guo L, Xu Z, Tong R. Asymmetric Total Synthesis of Indole Diterpenes Paspalicine, Paspalinine, and Paspalinine‐13‐ene. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lian‐Dong Guo
- Department of Chemistry The Hong Kong University of Science and Technology Clearwater Bay Kowloon, Hong Kong China
| | - Zejun Xu
- Department of Chemistry The Hong Kong University of Science and Technology Clearwater Bay Kowloon, Hong Kong China
| | - Rongbiao Tong
- Department of Chemistry The Hong Kong University of Science and Technology Clearwater Bay Kowloon, Hong Kong China
- Hong Kong Branch of the Guangdong Southern Marine Science and Engineering Laboratory (Guangzhou) The Hong Kong University of Science and Technology Clearwater Bay Kowloon, Hong Kong China
- HKUST Shenzhen Research Institute Shenzhen 518057 China
| |
Collapse
|
3
|
Hauser N, Imhof MA, Eichenberger SS, Kündig T, Carreira EM. Total Synthesis of Shearinines D and G: A Convergent Approach to Indole Diterpenoids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Nicole Hauser
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 3, HCI H335 8093 Zürich Switzerland
| | - Michael A. Imhof
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 3, HCI H335 8093 Zürich Switzerland
| | - Sarah S. Eichenberger
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 3, HCI H335 8093 Zürich Switzerland
| | - Tomas Kündig
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 3, HCI H335 8093 Zürich Switzerland
| | - Erick M. Carreira
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 3, HCI H335 8093 Zürich Switzerland
| |
Collapse
|
4
|
Guo LD, Xu Z, Tong R. Asymmetric Total Synthesis of Indole Diterpenes Paspalicine, Paspalinine, and Paspalinine-13-ene. Angew Chem Int Ed Engl 2021; 61:e202115384. [PMID: 34784090 DOI: 10.1002/anie.202115384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Indexed: 11/08/2022]
Abstract
Paspaline-derived indole diterpenes (IDTs) are structurally complex mycotoxins with unique tremorgenic activity. Reported are asymmetric total syntheses of three paspaline-derived IDTs paspalicine, paspalinine and paspalinine-13-ene. Our synthesis features a green Achmatowicz rearrangement/bicycloketalization for the efficient construction of FG rings (75 % yield) and a cascade ring-closing metathesis of dienyne for highly regioselective formation of CD rings (72 % yield). Other highlights include four palladium-mediated reactions (Stille, aza-Wacker, Suzuki, and Heck) to forge the BE rings and the installation of two continuous all-carbon quaternary stereocenters via reductive ring-opening of cyclopropane and α-methylation of the conjugate ester. Our new synthetic strategy is expected to be applicable to the chemical synthesis of other paspaline-derived IDTs and will facilitate the bioactivity studies of these agriculturally and pharmacologically important IDTs.
Collapse
Affiliation(s)
- Lian-Dong Guo
- Department of Chemistry, The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong, China
| | - Zejun Xu
- Department of Chemistry, The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong, China.,Hong Kong Branch of the Guangdong Southern Marine Science and Engineering Laboratory (Guangzhou), The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong, China.,HKUST Shenzhen Research Institute, Shenzhen, 518057, China
| |
Collapse
|
5
|
Carreira EM, Hauser N, Imhof MA, Eichenberger SS, Kündig T. Total Synthesis of Shearinines D and G: A Convergent Approach to Indole Diterpenoids. Angew Chem Int Ed Engl 2021; 61:e202112838. [PMID: 34738695 PMCID: PMC9300186 DOI: 10.1002/anie.202112838] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Indexed: 11/11/2022]
Abstract
The first total syntheses of the indole diterpenoids (+)‐shearinine G and D are disclosed. The successful routes rely on late‐stage coupling of two complex fragments. Formation of the challenging trans‐hydrindane motif was accomplished by diastereoselective, intramolecular cyclopropanation. A one‐pot sequence consisting of Sharpless dihydroxylation/Achmatowicz reaction was developed to install the dioxabicyclo[3.2.1]octane motif. The indenone subunit was accessed by Prins cyclization. Tuning the electronic nature of the substituents on the parent arylcarboxaldehyde allowed access to divergent products that were further transformed into shearinines G and D. Riley‐type oxidation of a bicyclic enone yielded a surprising stereochemical outcome.
Collapse
Affiliation(s)
- Erick Moran Carreira
- ETH-Hönggerberg, Laboratorium für Anorganische Chemie, Vladimir Prelog Weg 3, HCl H335, 8093, Zürich, SWITZERLAND
| | | | - Michael A Imhof
- ETH-Zürich LOC: Eidgenossische Technische Hochschule Zurich Laboratorium fur Organische Chemie, Chemistry, SWITZERLAND
| | - Sarah S Eichenberger
- ETH-Zürich LOC: Eidgenossische Technische Hochschule Zurich Laboratorium fur Organische Chemie, Chemistry, SWITZERLAND
| | - Tomas Kündig
- ETH-Zürich LOC: Eidgenossische Technische Hochschule Zurich Laboratorium fur Organische Chemie, Chemistry, SWITZERLAND
| |
Collapse
|
6
|
Borowiecki P, Dranka M, Ochal Z. Lipase-Catalyzed Kinetic Resolution ofN-Substituted 1-(β-Hydroxypropyl)indoles by Enantioselective Acetylation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paweł Borowiecki
- Faculty of Chemistry; Department of Drugs Technology and Biotechnology; Warsaw University of Technology; Koszykowa St. 3 00-664 Warsaw Poland
| | - Maciej Dranka
- Faculty of Chemistry; Department of Drugs Technology and Biotechnology; Warsaw University of Technology; Koszykowa St. 3 00-664 Warsaw Poland
| | - Zbigniew Ochal
- Faculty of Chemistry; Department of Drugs Technology and Biotechnology; Warsaw University of Technology; Koszykowa St. 3 00-664 Warsaw Poland
| |
Collapse
|
7
|
Alonso P, Pardo P, Galván A, Fañanás FJ, Rodríguez F. Synthesis of Cyclic Alkenyl Triflates by a Cationic Cyclization Reaction and its Application in Biomimetic Polycyclizations and Synthesis of Terpenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
8
|
Alonso P, Pardo P, Galván A, Fañanás FJ, Rodríguez F. Synthesis of Cyclic Alkenyl Triflates by a Cationic Cyclization Reaction and its Application in Biomimetic Polycyclizations and Synthesis of Terpenes. Angew Chem Int Ed Engl 2015; 54:15506-10. [DOI: 10.1002/anie.201508077] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/16/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Pedro Alonso
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Pilar Pardo
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Alicia Galván
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Francisco J. Fañanás
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Félix Rodríguez
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| |
Collapse
|
9
|
Tagami K, Minami A, Fujii R, Liu C, Tanaka M, Gomi K, Dairi T, Oikawa H. Rapid Reconstitution of Biosynthetic Machinery for Fungal Metabolites inAspergillus oryzae: Total Biosynthesis of Aflatrem. Chembiochem 2014; 15:2076-80. [DOI: 10.1002/cbic.201402195] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 01/08/2023]
|