1
|
Smith BP, Truax NJ, Pollatos AS, Meanwell M, Bedekar P, Garrido-Castro AF, Baran PS. Total Synthesis of Dragocins A-C through Electrochemical Cyclization. Angew Chem Int Ed Engl 2024; 63:e202401107. [PMID: 38358802 DOI: 10.1002/anie.202401107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/16/2024]
Abstract
The first total synthesis of dragocins A-C, remarkable natural products containing an unusual C4' oxidized ribose architecture bridged by a polyhydroxylated pyrrolidine, is presented through a route featuring a number of uncommon maneuvers. Several generations towards the target molecules are presented, including the spectacular failure of a key C-H oxidation on a late-stage intermediate. The final route features rapid, stereocontrolled access to a densely functionalized pyrrolidine and an unprecedented diastereoselective oxidative electrochemical cyclization to forge the hallmark 9-membered ring. Preliminary studies suggest this electrochemical oxidation protocol is generally useful.
Collapse
Affiliation(s)
- Brendyn P Smith
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Nathanyal J Truax
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Alexandros S Pollatos
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Michael Meanwell
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr NW, Edmonton, AB T6G 2N4, Canada
| | - Pranali Bedekar
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Alberto F Garrido-Castro
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| |
Collapse
|
2
|
Rodriguez-Matsui H, Aparicio DM, Orea ML, Juárez JR, Gómez-Calvario V, Gnecco D, Carrasco-Carballo A, Terán JL. Chiral Indolizinium Salts Derived from 2-Pyridinecarbaldehyde-First Diastereoselective Syntheses of (-)-1- epi-lentiginosine. Molecules 2023; 28:molecules28093719. [PMID: 37175128 PMCID: PMC10180032 DOI: 10.3390/molecules28093719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/18/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
The first diastereoselective synthesis of (-)-1-epi-lentiginosine from a common chiral trans-epoxyamide derived from 2-pyridincarbaldehyde is reported. This methodology involves a sequential oxirane ring opening and intramolecular 5-exo-tet cyclization of tosylate trans-epoxyalcohol to afford a diastereomeric mixture of indolizinium salts in a one-pot fashion, followed by regio- and diastereospecific pyridinium ring reduction.
Collapse
Affiliation(s)
- Hisami Rodriguez-Matsui
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| | - David M Aparicio
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| | - María L Orea
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| | - Jorge R Juárez
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| | - Victor Gómez-Calvario
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| | - Dino Gnecco
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| | - Alan Carrasco-Carballo
- Laboratorio de Elucidación y Síntesis en Química Orgánica, Benemérita Universidad Autónoma de Puebla, C.U., Puebla 72570, Mexico
| | - Joel L Terán
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC9 Complejo de Ciencias, C.U., Puebla 72570, Mexico
| |
Collapse
|
3
|
Stereoselective addition of Grignard reagents to sulfinimines derived from tartrate diol (threitol): Generation of chiral building blocks for the collective total synthesis of lentiginosine, conhydrine and methyldihydropalustramate. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
4
|
Guthertz A, Lusseau J, Desvergnes V, Massip S, Landais Y. An Approach towards the Synthesis of the Spiroimine Fragment of 13-Desmethylspirolide C and Gymnodimine A. Chemistry 2019; 25:1553-1560. [DOI: 10.1002/chem.201804972] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Alexandre Guthertz
- Institute of Molecular Sciences (ISM), UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Jonathan Lusseau
- Institute of Molecular Sciences (ISM), UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Valérie Desvergnes
- Institute of Molecular Sciences (ISM), UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Stéphane Massip
- European Institute of Chemistry and Biology (IECB); University of Bordeaux; 2 Rue Robert Escarpit 33600 Pessac France
| | - Yannick Landais
- Institute of Molecular Sciences (ISM), UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| |
Collapse
|
5
|
Yi CB, She ZY, Cheng YF, Qu J. Redox-Neutral α-C–H Functionalization of Pyrrolidin-3-ol. Org Lett 2018; 20:668-671. [DOI: 10.1021/acs.orglett.7b03807] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Cheng-Bo Yi
- The State Key Laboratory
and Institute of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhi-Ying She
- The State Key Laboratory
and Institute of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yong-Feng Cheng
- The State Key Laboratory
and Institute of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin Qu
- The State Key Laboratory
and Institute of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
6
|
Li Y, Li J, Ding H, Li A. Recent advances on the total synthesis of alkaloids in mainland China. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
AbstractAlkaloids are a large family of natural products that mostly contain basic nitrogen atoms. Because of their intriguing structures and important functions, they have long been popular targets for synthetic organic chemists. China's chemists have made significant progress in the area of alkaloid synthesis over past decades. In this article, selected total syntheses of alkaloids from research groups in mainland China during the period 2011–16 are highlighted.
Collapse
Affiliation(s)
- Yong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
7
|
Abstract
This review of simple indolizidine and quinolizidine alkaloids (i.e., those in which the parent bicyclic systems are in general not embedded in polycyclic arrays) is an update of the previous coverage in Volume 55 of this series (2001). The present survey covers the literature from mid-1999 to the end of 2013; and in addition to aspects of the isolation, characterization, and biological activity of the alkaloids, much emphasis is placed on their total synthesis. A brief introduction to the topic is followed by an overview of relevant alkaloids from fungal and microbial sources, among them slaframine, cyclizidine, Steptomyces metabolites, and the pantocins. The important iminosugar alkaloids lentiginosine, steviamine, swainsonine, castanospermine, and related hydroxyindolizidines are dealt with in the subsequent section. The fourth and fifth sections cover metabolites from terrestrial plants. Pertinent plant alkaloids bearing alkyl, functionalized alkyl or alkenyl substituents include dendroprimine, anibamine, simple alkaloids belonging to the genera Prosopis, Elaeocarpus, Lycopodium, and Poranthera, and bicyclic alkaloids of the lupin family. Plant alkaloids bearing aryl or heteroaryl substituents include ipalbidine and analogs, secophenanthroindolizidine and secophenanthroquinolizidine alkaloids (among them septicine, julandine, and analogs), ficuseptine, lasubines, and other simple quinolizidines of the Lythraceae, the simple furyl-substituted Nuphar alkaloids, and a mixed quinolizidine-quinazoline alkaloid. The penultimate section of the review deals with the sizable group of simple indolizidine and quinolizidine alkaloids isolated from, or detected in, ants, mites, and terrestrial amphibians, and includes an overview of the "dietary hypothesis" for the origin of the amphibian metabolites. The final section surveys relevant alkaloids from marine sources, and includes clathryimines and analogs, stellettamides, the clavepictines and pictamine, and bis(quinolizidine) alkaloids.
Collapse
|
8
|
Chavan SP, Khairnar LB, Pawar KP, Chavan PN, Kawale SA. Enantioselective syntheses of (R)-pipecolic acid, (2R,3R)-3-hydroxypipecolic acid, β-(+)-conhydrine and (−)-swainsonine using an aziridine derived common chiral synthon. RSC Adv 2015. [DOI: 10.1039/c5ra06429e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Concise total syntheses of (R)-pipecolic acid, (2R,3R)-3-hydroxypipecolic acid and formal syntheses of β-(+)-conhydrine, (−)-lentiginosine, (−)-swainsonine and -1,2-di-epi-swainsonine have been accomplished starting from a common chiral synthon.
Collapse
|
9
|
Kauloorkar SV, Jha V, Jogdand G, Kumar P. A stereoselective approach to indolizidine and pyrrolizidine alkaloids: total synthesis of (−)-lentiginosine, (−)-epi-lentiginosine and (−)-dihydroxypyrrolizidine. Org Biomol Chem 2014; 12:4454-60. [DOI: 10.1039/c4ob00461b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The total synthesis of (−)-lentiginosine, epi-1,2-lentiginosine and dihydroxypyrrolizidine is reported from an aldehyde as a starting material using organocatalysis and asymmetric dihydroxylation as key steps.
Collapse
Affiliation(s)
| | - Vishwajeet Jha
- Division of Organic Chemistry
- CSIR-NCL (National Chemical Laboratory)
- Pune 411008, India
| | - Ganesh Jogdand
- Central NMR Facility
- CSIR-NCL (National Chemical Laboratory)
- Pune 411008, India
| | - Pradeep Kumar
- Division of Organic Chemistry
- CSIR-NCL (National Chemical Laboratory)
- Pune 411008, India
| |
Collapse
|