1
|
Zhao J, Xu G, Wang X, Liu J, Ren X, Hong X, Lu Z. Cobalt-Catalyzed Migration Isomerization of Dienes. Org Lett 2022; 24:4592-4597. [PMID: 35727697 DOI: 10.1021/acs.orglett.2c01701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A cobalt-catalyzed multipositional isomerization of conjugated dienes has been reported for the first time using an 8-oxazoline iminoquinoline ligand. This reaction is operationally simple and atom-economical using readily available starting materials with an E/Z mixture to access disubstituted 1,3-dienes with excellent yields and good E,E stereoselectivity. The mechanism via alkene insertion of cobalt hydride species and β-H elimination of a π-allyl cobalt intermediate is proposed on the basis of deuterium labeling and control experiments and density functional theory calculations.
Collapse
Affiliation(s)
- Jiajin Zhao
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Guoxiong Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.,Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street NO. 2, Beijing 100190, P.R. China.,Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Xue Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jiren Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.,Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street NO. 2, Beijing 100190, P.R. China.,Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Xiang Ren
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.,Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street NO. 2, Beijing 100190, P.R. China.,Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
2
|
Scaringi S, Mazet C. Kinetically Controlled Stereoselective Access to Branched 1,3-Dienes by Ru-Catalyzed Remote Conjugative Isomerization. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02144] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Simone Scaringi
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| |
Collapse
|
3
|
Fürstner A. Lessons from Natural Product Total Synthesis: Macrocyclization and Postcyclization Strategies. Acc Chem Res 2021; 54:861-874. [PMID: 33507727 PMCID: PMC7893715 DOI: 10.1021/acs.accounts.0c00759] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Macrocyclic
natural products are plentiful in
the bacteria, archaea,
and eukaryote domains of life. For the significant advantages that
they provide to the producing organisms, evolution has learned how
to implement various types of macrocyclization reactions into the
different biosynthetic pathways and how to effect them with remarkable
ease. Mankind greatly benefits from nature’s pool, not least
because naturally occurring macrocycles or derivatives thereof serve
as important drugs for the treatment of many serious ailments. In stark contrast, macrocyclization reactions are usually perceived
as difficult to accomplish by purely chemical means. While it is true
that ring closure necessarily entails an entropic loss and may result
in the buildup of (considerable) ring strain that must be compensated
for in one way or the other, it is also fair to note tremendous methodological
advances during the last decades that greatly alleviated this traditional
“macrocycle challenge”. It is therefore increasingly
possible to explore the advantages provided by large as well as medium-size
ring systems in a more systematic manner. This venture also holds
the promise of increasing the “chemical space” amenable
to drug development to a considerable extent. In consideration
of this and other important long-term perspectives,
it is appropriate to revisit the current state of the art. To this
end, a number of vignettes are presented, each of which summarizes
a total synthesis project targeting macrocyclic natural products of
greatly different chemotypes using a variety of transformations to
reach these goals. Although we were occasionally facing “dead
ends”, which are also delineated for the sake of a complete
picture, these case studies illustrate the notion that the formation
of a certain macrocyclic perimeter is (usually) no longer seriously
limiting. In addition to substantial progress in the “classical”
repertoire (macrolactonization and macrolactamization
(pateamine A, spirastrellolide, and belizentrin)), various metal-catalyzed
reactions have arguably led to the greatest leaps forward. Among them,
palladium-catalyzed C–C bond formation (roseophilin and nominal
xestocyclamine A) and, in particular, alkene and alkyne metathesis
stand out (iejimalide, spirastrellolide, enigmazole, ingenamine, and
sinulariadiolide). In some cases, different methods were pursued in
parallel, thus allowing for a critical assessment and comparison. To the extent that the macrocyclic challenge is vanishing, the
opportunity arises to focus attention on the postmacrocyclization
phase. One may stipulate that a well-designed cyclization precursor
does not only ensure efficient ring closure but also fosters and streamlines
the steps that come after the event. One way to do so is dual (multiple)
use in that the functional groups serving the actual cyclization reaction
also find productive applications downstream from it rather than being
subject to simple defunctionalization. In this context,
better insight into the conformational peculiarities of large rings
and the growing confidence in their accessibility in a stereochemically
well defined format rejuvenate the implementation of transannular
reactions or reaction cascades that can lead to rapid and substantial
increases in molecular complexity. The examples summarized herein
showcase such possibilities, with special emphasis on tranannular
gold catalysis and the emerging ruthenium-catalyzed trans-hydrometalation chemistry for the selective functionalization of
alkynes.
Collapse
|
4
|
|
5
|
AnkiReddy P, AnkiReddy S, Gowravaram S. Synthetic studies toward the marine metabolite prorocentin-4: synthesis of the C1-C23 fragment. Org Biomol Chem 2018; 16:4191-4194. [PMID: 29796520 DOI: 10.1039/c8ob00388b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A synthetic study of the construction of the C1-C23 fragment of prorocentin-4, a novel linear polyketide, is described. The synthetic highlights include the acid catalyzed epoxide opening, Gilman reaction, Pd(OH)2 catalyzed transformation of a primary propargylic alcohol into an aldehyde, Oxa-Michael cyclization, and Horner-Wadsworth-Emmons (HWE) olefination reaction as key steps.
Collapse
Affiliation(s)
- Praveen AnkiReddy
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India.
| | | | | |
Collapse
|
6
|
Hattori H, Kaufmann E, Miyatake-Ondozabal H, Berg R, Gademann K. Total Synthesis of Tiacumicin A. Total Synthesis, Relay Synthesis, and Degradation Studies of Fidaxomicin (Tiacumicin B, Lipiarmycin A3). J Org Chem 2018; 83:7180-7205. [DOI: 10.1021/acs.joc.8b00101] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hiromu Hattori
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Elias Kaufmann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | | | - Regina Berg
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| |
Collapse
|
7
|
Abstract
Total synthesis of nannocystin Ax has been accomplished concisely. The key elements in this total synthesis feature Kobayashi's remote asymmetric induction with vinylketene silyl N,O-acetal, Roush's asymmetric crotylboration of aldehyde, Mitsunobu's esterification and macrocyclization via Stille cross-coupling.
Collapse
Affiliation(s)
- Yan-Hui Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Rong Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| |
Collapse
|
8
|
Si D, Peczuh MW. Synthesis and structure of a carbohydrate-fused [15]-macrodilactone. Carbohydr Res 2016; 434:113-120. [PMID: 27639337 DOI: 10.1016/j.carres.2016.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/24/2016] [Accepted: 08/26/2016] [Indexed: 10/21/2022]
Abstract
The design, synthesis and structural characterization of a new α-d-glucose fused [15]-macrodilactone is reported. The macrolide was synthesized by a route involving sequential acylations of glucose at the C4' and C6' hydroxyl groups followed by an intramolecular Stille reaction previously established for other [15]-macrodilactones. Analysis of the X-ray crystallographic structure of the macrolide revealed a unique conformation of this macrocycle that differs from earlier models for [13]- and [15]-macrodilactones. Organizing the three planar units and the pyranose moiety into a macrocyclic ring resulted in a cup-shaped structure with planar chirality. Further, the gt conformation of the exocyclic hydroxymethyl group in the glucose unit was found to be crucial for controlling the planar chirality and, hence, governing the molecular shape and overall topology of the compound.
Collapse
Affiliation(s)
- Debjani Si
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, U3060, Storrs, CT 06269, USA
| | - Mark W Peczuh
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, U3060, Storrs, CT 06269, USA.
| |
Collapse
|
9
|
Ma K, Liao D, Yang S, Li X, Lei X. Studies towards the synthesis of the functionalized C3–C14 decalin framework of alchivemycin A. Org Chem Front 2016. [DOI: 10.1039/c5qo00343a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report our synthetic endeavors towards the synthesis of the C3–C14 fragment of the complex natural product alchivemycin A.
Collapse
Affiliation(s)
- Kaiqing Ma
- Modern Research Center for Traditional Chinese Medicine of Shanxi University
- Taiyuan 030006
- China
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
| | - Daohong Liao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Department of Chemical Biology
- College of Chemistry and Molecular Engineering
- Synthetic and Functional Biomolecules Center
| | - Shaoqiang Yang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Department of Chemical Biology
- College of Chemistry and Molecular Engineering
- Synthetic and Functional Biomolecules Center
| | - Xiaofei Li
- National Institute of Biological Sciences (NIBS)
- Beijing 102206
- China
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Department of Chemical Biology
- College of Chemistry and Molecular Engineering
- Synthetic and Functional Biomolecules Center
| |
Collapse
|
10
|
Ronson TO, Taylor RJ, Fairlamb IJ. Palladium-catalysed macrocyclisations in the total synthesis of natural products. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
11
|
Si D, Peczuh MW. Synthesis, structure and reactivity of [15]-macrodilactones. Org Biomol Chem 2015; 13:6463-7. [DOI: 10.1039/c5ob00809c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and characterization of some new [15]-macrodilactones revealed that the interplay between three planar units, a stereogenic center and a hinge atom generated a planar chirality that governs their molecular topology.
Collapse
Affiliation(s)
- Debjani Si
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
| | - Mark W. Peczuh
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
| |
Collapse
|
12
|
Tsakos M, Schaffert ES, Clement LL, Villadsen NL, Poulsen TB. Ester coupling reactions – an enduring challenge in the chemical synthesis of bioactive natural products. Nat Prod Rep 2015; 32:605-32. [DOI: 10.1039/c4np00106k] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this review we investigate the use of complex ester fragment couplings within natural product total syntheses. Using examples from the literature up to 2014 we illustrate the state-of-the-art as well as the challenges within this area of organic synthesis.
Collapse
Affiliation(s)
- Michail Tsakos
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Eva S. Schaffert
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Lise L. Clement
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Nikolaj L. Villadsen
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Thomas B. Poulsen
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| |
Collapse
|
13
|
|
14
|
Tan KC, Wakimoto T, Abe I. Lipodiscamides A–C, New Cytotoxic Lipopeptides from Discodermia kiiensis. Org Lett 2014; 16:3256-9. [DOI: 10.1021/ol501271v] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Karen Co Tan
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiyuki Wakimoto
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
15
|
Chatterjee B, Bera S, Mondal D. Julia–Kocienski olefination: a key reaction for the synthesis of macrolides. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.09.027] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
16
|
Heravi MM, Hashemi E, Azimian F. Recent developments of the Stille reaction as a revolutionized method in total synthesis. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.07.108] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
17
|
Abstract
This review covers the literature published in 2011 for marine natural products, with 870 citations (558 for the period January to December 2011) 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 (1152 for 2011), 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.
Collapse
Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | | | | | | | | |
Collapse
|
18
|
|
19
|
|
20
|
Iafe RG, Chan DG, Kuo JL, Boon BA, Faizi DJ, Saga T, Turner JW, Merlic CA. Cyclization strategies to polyenes using Pd(II)-catalyzed couplings of pinacol vinylboronates. Org Lett 2012; 14:4282-5. [PMID: 22867013 DOI: 10.1021/ol3020623] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As a complement to Pd(0)-catalyzed cyclizations, seven Pd(II)-catalyzed cyclization strategies are reported. α,ω-Diynes are selectively hydroborated to bis(boronate esters), which cyclize under Pd(II)-catalysis producing a diverse array of small, medium, and macrocyclic polyenes with controlled E,E, Z,Z, or E,Z stereochemistry. Various functional groups are tolerated including aryl bromides, and applications are illustrated.
Collapse
Affiliation(s)
- Robert G Iafe
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Chen M, Roush WR. Enantioselective synthesis of anti- and syn-homopropargyl alcohols via chiral Brønsted acid catalyzed asymmetric allenylboration reactions. J Am Chem Soc 2012; 134:10947-52. [PMID: 22731887 PMCID: PMC3474359 DOI: 10.1021/ja3031467] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Chiral Brønsted acid catalyzed asymmetric allenylboration reactions are described. Under optimized conditions, anti-homopropargyl alcohols 2 are obtained in high yields with excellent diastereo- and enantioselectivities from stereochemically matched aldehyde allenylboration reactions with (M)-1 catalyzed by the chiral phosphoric acid (S)-4. The syn-isomers 3 can also be obtained in good diastereoselectivities and excellent enantioselectivities from the mismatched allenylboration reactions of aromatic aldehydes using (M)-1 in the presence of the enantiomeric phosphoric acid (R)-4. The stereochemistry of the methyl group introduced into 2 and 3 is controlled by the chirality of the allenylboronate (M)-1, whereas the configuration of the new hydroxyl stereocenter is controlled by the enantioselectivity of the chiral phosphoric acid catalyst used in these reactions. The synthetic utility of this methodology was further demonstrated in highly diastereoselective syntheses of a variety of anti, anti-stereotriads, the direct synthesis of which has constituted a significant challenge using previous generations of aldol and crotylmetal reagents.
Collapse
Affiliation(s)
- Ming Chen
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
| | - William R. Roush
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
| |
Collapse
|