1
|
Chen H, Ai Z, Liao X. Protocol for Sonogashira coupling of alkynes and aryl halides via nickel catalysis. STAR Protoc 2024; 5:102900. [PMID: 38367230 PMCID: PMC10879785 DOI: 10.1016/j.xpro.2024.102900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/29/2023] [Accepted: 02/02/2024] [Indexed: 02/19/2024] Open
Abstract
Alkynes are widely present in natural products and pharmaceutical compounds. Here, we present a protocol for nickel-catalyzed cross-coupling of terminal alkynes with aryl iodides or bromides for constructing a C(sp2)-C(sp) bond. We describe steps for reagent preparation, reaction setup, purification process, and product characterization. We also detail procedures for obtaining a single crystal of 6-(phenylethynyl)-1-(phenylsulfonyl)-1H-indole (3b). The application of this protocol is limited to aryl bromide and iodide. For complete details on the use and execution of this protocol, please refer to Chen et al.1.
Collapse
Affiliation(s)
- Hui Chen
- School of Pharmaceutical Sciences, State Key Laboratory of Molecular Oncology, Tsinghua-Peking Center for Life Science, Tsinghua University, Beijing 100084, China
| | - Zhenkang Ai
- School of Pharmaceutical Sciences, State Key Laboratory of Molecular Oncology, Tsinghua-Peking Center for Life Science, Tsinghua University, Beijing 100084, China
| | - Xuebin Liao
- School of Pharmaceutical Sciences, State Key Laboratory of Molecular Oncology, Tsinghua-Peking Center for Life Science, Tsinghua University, Beijing 100084, China.
| |
Collapse
|
2
|
Bossuat M, Rullière P, Preuilh N, Peixoto A, Joly E, Gomez JG, Bourkhis M, Rodriguez F, Gonçalves F, Fabing I, Gaspard H, Bernardes-Génisson V, Maraval V, Ballereau S, Chauvin R, Britton S, Génisson Y. Phenyl dialkynylcarbinols, a Bioinspired Series of Synthetic Antitumor Acetylenic Lipids. J Med Chem 2023; 66:13918-13945. [PMID: 37816126 DOI: 10.1021/acs.jmedchem.3c00859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
A series of 25 chiral anti-cancer lipidic alkynylcarbinols (LACs) were devised by introducing an (hetero)aromatic ring between the aliphatic chain and the dialkynylcarbinol warhead. The resulting phenyl-dialkynylcarbinols (PACs) exhibit enhanced stability, while retaining cytotoxicity against HCT116 and U2OS cell lines with IC50 down to 40 nM for resolved eutomers. A clickable probe was used to confirm the PAC prodrug behavior: upon enantiospecific bio-oxidation of the carbinol by the HSD17B11 short-chain dehydrogenase/reductase (SDR), the resulting ynones covalently modify cellular proteins, leading to endoplasmic reticulum stress, ubiquitin-proteasome system inhibition, and apoptosis. Insights into the design of LAC prodrugs specifically bioactivated by HSD17B11 vs its paralogue HSD17B13 were obtained. The HSD17B11/HSD17B13-dependent cytotoxicity of PACs was exploited to develop a cellular assay to identify specific inhibitors of these enzymes. A docking study was performed with the HSD17B11 AlphaFold model, providing a molecular basis of the SDR substrates mimicry by PACs. The safety profile of a representative PAC was established in mice.
Collapse
Affiliation(s)
- Margaux Bossuat
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
- LCC-CNRS, Université de Toulouse, CNRS UPR 8241, UPS, F-31077 Toulouse, France
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Pauline Rullière
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Nadège Preuilh
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Antonio Peixoto
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Etienne Joly
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Jean-Guillaume Gomez
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Maroua Bourkhis
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Frédéric Rodriguez
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Fernanda Gonçalves
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Isabelle Fabing
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Hafida Gaspard
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | | | - Valérie Maraval
- LCC-CNRS, Université de Toulouse, CNRS UPR 8241, UPS, F-31077 Toulouse, France
| | - Stéphanie Ballereau
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| | - Remi Chauvin
- LCC-CNRS, Université de Toulouse, CNRS UPR 8241, UPS, F-31077 Toulouse, France
| | - Sébastien Britton
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III─Paul Sabatier (UT3), F-31044 Toulouse, France
| | - Yves Génisson
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), UMR 5068, CNRS, Université Paul Sabatier-Toulouse III, F-31062 Toulouse, France
| |
Collapse
|
3
|
Hale EA, Ryan HM, McOsker AM, Funk CM, Green LC, Mazur LE, Uthappa DM, Flood BM, Young DD, Hinkle RJ. Effects of Structural Variations on Antibacterial Properties for Conjugated Diynes Generated through Glaser Hay Couplings. ChemMedChem 2022; 17:e202200455. [PMID: 36194525 PMCID: PMC10092682 DOI: 10.1002/cmdc.202200455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/30/2022] [Indexed: 01/14/2023]
Abstract
Antibiotic resistance is a growing problem facing global societies today. Many new antibiotics are derivatized versions of already existing antibiotics, which allows for antibiotic resistance to arise. To combat this issue, new antibiotics with different core structures need to be elucidated. Asymmetrical polyacetylenes have been isolated from natural products and they have previously been demonstrated to exhibit antimicrobial and antibacterial activity; however, their synthetic preparation has not made them easily amenable to rapid derivatization for SAR studies. Using a combination of solution and solid-supported chemistries, an array of diynes inspired by a known natural product were prepared and assessed for antibacterial activity. Ultimately, several compounds were identified with improved activity in bacterial viability assays. Moreover, some compounds were discovered that displayed a degree of specificity for E. coli over P. fluorescens and vice versa. These new compounds show promise, and further investigation is needed to pinpoint the specific structural components that elicit biological activity.
Collapse
Affiliation(s)
- Emma A. Hale
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Hannah M. Ryan
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | | | - Cody M. Funk
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Lauren C. Green
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Lauren E. Mazur
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Diya M. Uthappa
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Brian M. Flood
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Douglas D. Young
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| | - Robert J. Hinkle
- Department of ChemistryWilliam & MaryPO Box 8795Williamsburg, VA23187USA
| |
Collapse
|
4
|
Othmanm MO, Abdallahi SM, Ewies EF, El-Shazly M, Elemine BO, Hadou A, Moncol J, Lawson AM, Daich A, Othman M. Autotandem Catalysis: Inexpensive and Green Access to Functionalized Ketones by Intermolecular Iron-Catalyzed Amidoalkynylation/Hydration Cascade Reaction via N-Acyliminium Ion Chemistry. Chemistry 2021; 27:15440-15449. [PMID: 34346129 DOI: 10.1002/chem.202102357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Indexed: 11/05/2022]
Abstract
Iron-based catalysts were applied in cascade-type reactions for the synthesis of different carbonyl compounds. The reactions proceeded by a new iron-catalyzed cascade of alkynylation/hydration by using both the σ- and π-Lewis acid properties of iron salts. The alkynylation reactions of several endo and exocyclic acetoxylactams were achieved with three different catalysts including FeCl 3 .6H 2 O, FeCl 3 , and Fe(OTf) 3 showing the efficiency of σ-Lewis acidity of iron (III) salts in catalyzing the alkynylation reaction. We also demonstrated that the reaction sequence could be shortened by the direct use of hydroxylactams, leading to an environmentally friendly protocol, avoiding the need to perform unnecessary lengthy steps. A combination of the hard/soft iron Lewis acid properties was then used to implement an unprecedented tandem intermolecular alkynylation/intramolecular hydration sequence allowing expedient access to a new carbonyl structures from trivial materials.
Collapse
Affiliation(s)
- Mohamed Othman Othmanm
- University of le Havre, Unit� de Recherche en Chimie Organique et Macromol�culaire URCOM, 25, Rue Philippe Lebon, BP 540, 76058, Le Havre, FRANCE
| | | | | | | | | | | | - Ján Moncol
- Slovak University of Technology Faculty of Chemical and Food Technology: Slovenska Technicka Univerzita v Bratislave Fakulta chemickej a potravinarskej technologie, Chemistry, SLOVAKIA
| | | | | | - Mohamed Othman
- Universite du Havre, URCOM, 25, Rue Philippe Lebon, BP 540, 76058, Le Havre, FRANCE
| |
Collapse
|
5
|
Mokhtar M, Alzhrani G, Aazam ES, Saleh TS, Al-Faifi S, Panja S, Maiti D. Synergistic Effect of NiLDH@YZ Hybrid and Mechanochemical Agitation on Glaser Homocoupling Reaction. Chemistry 2021; 27:8875-8885. [PMID: 33848016 DOI: 10.1002/chem.202100018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 12/15/2022]
Abstract
Herein, we report the synthesis of nickel-layered double hydroxide amalgamated Y-zeolite (NiLDH@YZ) hybrids and the evaluation of the synergistic effect of various NiLDH@YZ catalysts and mechanochemical agitation on Glaser homocoupling reactions. Nitrogen adsorption-desorption experiments were carried out to estimate the surface area and porosity of NiLDH@YZ hybrids. The basicity and acidity of these hybrids were determined by CO2 -TPD and NH3 -TPD experiments respectively and this portrayed good acid-base bifunctional feature of the catalysts. The NiLDH@YZ-catalyzed mechanochemical Glaser coupling reaction achieved best yield of 83 % for the 0.5NiLDH@0.5YZ hybrid after 60 min of agitation, which revealed the highest acid-base bifunctional feature compared to all the investigated catalysts. The developed catalyst has proven itself as a robust and effective candidate that can successfully be employed up to four catalytic cycles without significant loss in catalytic activity, under optimized reaction conditions. This work demonstrated a new strategy for C-C bond formation enabled by the synergy between mechanochemistry and heterogeneous catalysis.
Collapse
Affiliation(s)
- Mohamed Mokhtar
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ghalia Alzhrani
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Elham S Aazam
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Tamer S Saleh
- Chemistry Department, Faculty of Science, University of Jeddah, P.O. Box 80329, Jeddah, 21589, Saudi Arabia
| | - Sulaiman Al-Faifi
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Subir Panja
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| |
Collapse
|
6
|
Ehrhorn H, Tamm M. Well-Defined Alkyne Metathesis Catalysts: Developments and Recent Applications. Chemistry 2018; 25:3190-3208. [PMID: 30346054 DOI: 10.1002/chem.201804511] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Indexed: 12/31/2022]
Abstract
Although alkyne metathesis has been known for 50 years, rapid progress in this field has mostly occurred during the last two decades. In this article, the development of several highly efficient and thoroughly studied alkyne metathesis catalysts is reviewed, which includes novel well-defined, in situ formed and heterogeneous systems. Various alkyne metathesis methodologies, including alkyne cross-metathesis (ACM), ring-closing alkyne metathesis (RCAM), cyclooligomerization, acyclic diyne metathesis polymerization (ADIMET), and ring-opening alkyne metathesis polymerization (ROAMP), are presented, and their application in natural product synthesis, materials science as well as supramolecular and polymer chemistry is discussed. Recent progress in the metathesis of diynes is also summarized, which gave rise to new methods such as ring-closing diyne metathesis (RCDM) and diyne cross-metathesis (DYCM).
Collapse
Affiliation(s)
- Henrike Ehrhorn
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| |
Collapse
|
7
|
Oplopanax horridus: Phytochemistry and Pharmacological Diversity and Structure-Activity Relationship on Anticancer Effects. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:9186926. [PMID: 30302120 PMCID: PMC6158975 DOI: 10.1155/2018/9186926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 08/29/2018] [Indexed: 12/27/2022]
Abstract
Oplopanax horridus, well-known as Devil's club, is probably the most important ethnobotanical to most indigenous people living in the Pacific Northwest of North America. Compared with the long history of traditional use and widespread distribution in North America, the study of O. horridus is relatively limited. In the past decade, some exciting advances have been presented on the phytochemistry and pharmacological diversity and structure-activity relationship on anticancer effects of O. horridus. To date, no systematic review has been drafted on the recent advances of O. horridus. In this review, the different phytochemicals in O. horridus are compiled, including purified compounds and volatile components. Animal and in vitro studies are also described and discussed. Especially, the potential structural-activity relationship of polyynes on anticancer effects is highlighted. This review aimed to provide comprehensive and useful information for researching O. horridus and finding potential agents in drug discovery.
Collapse
|
8
|
Listunov D, Joly E, Duhayon C, Saffon-Merceron N, Fabing I, Génisson Y, Maraval V, Chauvin R. Methinylogation Approach in Chiral Pharmacophore Design: from Alkynyl- to Allenyl-carbinol Warheads against Tumor Cells. ChemMedChem 2018; 13:1711-1722. [DOI: 10.1002/cmdc.201800284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Indexed: 11/11/2022]
Affiliation(s)
| | - Etienne Joly
- UMR CNRS 5089, IPBS (Institut de Pharmacologie et de Biologie Structurale); 205 Route de Narbonne 31077 Toulouse cedex France
| | - Carine Duhayon
- LCC-CNRS; Université de Toulouse, CNRS, UPS; Toulouse France
| | | | - Isabelle Fabing
- UMR CNRS 5068, LSPCMIB; Université de Toulouse, Université Paul Sabatier; 118 Route de Narbonne 31062 Toulouse cedex 9 France
| | - Yves Génisson
- UMR CNRS 5068, LSPCMIB; Université de Toulouse, Université Paul Sabatier; 118 Route de Narbonne 31062 Toulouse cedex 9 France
| | - Valérie Maraval
- LCC-CNRS; Université de Toulouse, CNRS, UPS; Toulouse France
| | - Remi Chauvin
- LCC-CNRS; Université de Toulouse, CNRS, UPS; Toulouse France
| |
Collapse
|
9
|
Schnabel TM, Melcher D, Brandhorst K, Bockfeld D, Tamm M. Unraveling the Mechanism of 1,3-Diyne Cross-Metathesis Catalyzed by Silanolate-Supported Tungsten Alkylidyne Complexes. Chemistry 2018; 24:9022-9032. [PMID: 29676817 DOI: 10.1002/chem.201801651] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Tobias M. Schnabel
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Daniel Melcher
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Kai Brandhorst
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Dirk Bockfeld
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| |
Collapse
|
10
|
Transmetalation of Alkylzirconocenes in Copper-Catalyzed Alkyl-Alkynyl Cross-Coupling Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700164] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
11
|
|
12
|
Bourkhis M, Listunov D, Gaspard H, Joly E, Abderrahim R, Maraval V, Génisson Y, Chauvin R. Ethynylogation approach in antitumor lipid pharmacochemistry: from dialkynyl-carbinols to trialkynyl-carbinols. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2017. [DOI: 10.17721/fujcv5i1p24-34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
A recently proposed "ethynylogation" pharmacochemical approach, first envisaged in the series of anticancer lipidic dialkynylcarbinols (DACs) H–C≡C–CH(OH)–C≡C–R at the levels of the H–C⋮ and ⋮C–R bonds for R = n-C12H25, is completed here at the level of the (HO)C–H bond. The so-devised mono-lipidic trialkynylcarbinol (TAC) target (HC≡C)2C(OH)–C≡CR and its bis-lipidic counterpart HC≡C–C(OH)(C≡CR)2 were synthesized in 4 steps and with 33 % and 23 % overall yield, respectively. Their antitumor cytotoxicity has been evaluated towards HCT116 cells: while the latter TAC is totally inactive, the former DAC-ethynylogous TAC still exhibits a significant toxicity with an IC50 of 10 µM.
Collapse
Affiliation(s)
| | | | | | - Etienne Joly
- Institut de Pharmacologie et de Biologie Structurale
| | | | | | | | | | | |
Collapse
|
13
|
Shao L, Nie MK, Chen MY, Wang J, Wang CZ, Huang WH, Yuan CS, Zhou HH. Screening and identifying antioxidants from Oplopanax elatus using 2,2'-diphenyl-1-picrylhydrazyl with off-line two-dimensional HPLC coupled with diode array detection and tandem time-of-flight mass spectrometry. J Sep Sci 2016; 39:4269-4280. [PMID: 27624907 DOI: 10.1002/jssc.201600838] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 11/09/2022]
Abstract
The root of Oplopanax elatus (Nakai) Nakai has a well-known history of use for the treatment of diseases such as neurasthenia, cardiovascular disorders, and cancer by the native people in northeast China. It is important to screen and identify the bioactive molecules from its root rapidly. Hereby, an off-line two-dimensional high performance liquid chromatography coupled with diode array detection and tandem time-of-flight mass spectrometry together with 2,2'-diphenyl-1-picrylhydrazyl was established to screen antioxidants from the root of O. elatus. A Waters cyanogen column (150 × 3.9 mm, id, 4 μm) was used for the first dimensional liquid chromatography, while a Hypersil BDS-C18 column (250 × 4.6 mm, id, 5 μm) was installed for the second dimension liquid chromatographic analysis. Twenty-eight compounds had been tentatively identified from the methanol extract of the air-dried root of O. elatus including six polyynes and eight phenolic derivatives were screened with antioxidant activity. The developed method could be expedient for screening and identifying antioxidants from O. elatus.
Collapse
Affiliation(s)
- Li Shao
- Department of Pharmacognosy, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Ming-Kun Nie
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Man-Yun Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Jin Wang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Chong-Zhi Wang
- Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL, USA
| | - Wei-Hua Huang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China.,Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL, USA
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL, USA
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| |
Collapse
|
14
|
Listunov D, Saffon-Merceron N, Joly E, Fabing I, Génisson Y, Maraval V, Chauvin R. Ethynylogation approach in pharmacophore design: from alkynyl-to butadiynyl-carbinols vs antitumoral cytotoxicity. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
15
|
Chinta BS, Baire B. A systematic study on the Cadiot–Chodkiewicz cross coupling reaction for the selective and efficient synthesis of hetero-diynes. RSC Adv 2016. [DOI: 10.1039/c6ra07308e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
99% selectivity for cross coupling. Excellent yields (upto 94%). Low basic reaction medium, high functional group tolerance. Use of green solvent water.
Collapse
Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Institute of Technology Madras
- Chennai – 600036
- India
| |
Collapse
|
16
|
Galler DJ, Parker KA. Five Easy Pieces. The Total Synthesis of Phosphoiodyn A (and Placotylene A). Org Lett 2015; 17:5544-6. [DOI: 10.1021/acs.orglett.5b02642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David J. Galler
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
| | - Kathlyn A. Parker
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
| |
Collapse
|
17
|
Listunov D, Billot C, Joly E, Fabing I, Volovenko Y, Génisson Y, Maraval V, Chauvin R. Extended structural modulation of bio-inspired chiral lipidic alkynylcarbinols as antitumor pharmacophores. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
18
|
Nickel S, Serwa RA, Kaschani F, Ninck S, Zweerink S, Tate EW, Kaiser M. Chemoproteomic Evaluation of the Polyacetylene Callyspongynic Acid. Chemistry 2015; 21:10721-8. [PMID: 26079733 DOI: 10.1002/chem.201500934] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Indexed: 01/17/2023]
Abstract
Polyacetylenes are a class of alkyne-containing natural products. Although potent bioactivities and thus possible applications as chemical probes have already been reported for some polyacetylenes, insights into the biological activities or molecular mode of action are still rather limited in most cases. To overcome this limitation, we describe the application of the polyacetylene callyspongynic acid in the development of an experimental roadmap for characterizing potential protein targets of alkyne-containing natural products. To this end, we undertook the first chemical synthesis of callyspongynic acid. We then used in situ chemical proteomics methods to demonstrate extensive callyspongynic acid-mediated chemical tagging of endoplasmic reticulum-associated lipid-metabolizing and modifying enzymes. We anticipate that an elucidation of protein targets of natural products may serve as an effective guide to the development of subsequent biological assays that aim to identify chemical phenotypes and bioactivities.
Collapse
Affiliation(s)
- Sabrina Nickel
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Remigiusz A Serwa
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ (UK)
| | - Farnusch Kaschani
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Sabrina Ninck
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Susanne Zweerink
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Edward W Tate
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ (UK)
| | - Markus Kaiser
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany).
| |
Collapse
|
19
|
Listunov D, Fabing I, Saffon-Merceron N, Gaspard H, Volovenko Y, Maraval V, Chauvin R, Génisson Y. Asymmetric Synthesis and Biological Evaluation of Natural or Bioinspired Cytotoxic C2-Symmetrical Lipids with Two Terminal Chiral Alkynylcarbinol Pharmacophores. J Org Chem 2015; 80:5386-94. [DOI: 10.1021/acs.joc.5b00494] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dymytrii Listunov
- UPR
CNRS 8241, LCC, Université de Toulouse, 205 route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, Université Paul Sabatier, INPT, F-31077 Toulouse, France
- Kiev National Taras Shevchenko University, 60 Volodymyrska Street, 01033 Kiev, Ukraine
- UMR
CNRS 5068, LSPCMIB, Université Paul Sabatier, 118 route de
Narbonne, Toulouse, 31062
Cedex 9, France
| | - Isabelle Fabing
- UMR
CNRS 5068, LSPCMIB, Université Paul Sabatier, 118 route de
Narbonne, Toulouse, 31062
Cedex 9, France
| | - Nathalie Saffon-Merceron
- Institut
de Chimie de Toulouse, ICT FR 2599, Université Paul Sabatier - Toulouse III, Toulouse 31062 Cedex 9, France
| | - Hafida Gaspard
- UMR
CNRS 5068, LSPCMIB, Université Paul Sabatier, 118 route de
Narbonne, Toulouse, 31062
Cedex 9, France
| | - Yulian Volovenko
- Kiev National Taras Shevchenko University, 60 Volodymyrska Street, 01033 Kiev, Ukraine
| | - Valérie Maraval
- UPR
CNRS 8241, LCC, Université de Toulouse, 205 route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, Université Paul Sabatier, INPT, F-31077 Toulouse, France
| | - Remi Chauvin
- UPR
CNRS 8241, LCC, Université de Toulouse, 205 route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, Université Paul Sabatier, INPT, F-31077 Toulouse, France
| | - Yves Génisson
- UMR
CNRS 5068, LSPCMIB, Université Paul Sabatier, 118 route de
Narbonne, Toulouse, 31062
Cedex 9, France
| |
Collapse
|
20
|
Listunov D, Maraval V, Chauvin R, Génisson Y. Chiral alkynylcarbinols from marine sponges: asymmetric synthesis and biological relevance. Nat Prod Rep 2015; 32:49-75. [PMID: 25275665 DOI: 10.1039/c4np00043a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Covering: up to March 2014. Previous review on the topic: B. W. Gung, C. R. Chim., 2009, 12, 489-505. Chiral α-functional lipidic propargylic alcohols extracted from marine sponges, in particular of the pacific genus Petrosia, constitute a class of acetylenic natural products exhibiting remarkable in vitro biological activities, especially anti-tumoral cytotoxicity. These properties, associated to functionalities that are uncommon among natural products, have prompted recent projects on asymmetric total synthesis. On the basis of a three-sector structural typology, three main sub-types of secondary alkynylcarbinols (with either alkyl, alkenyl, or alkynyl as the second substituent) can be identified as the minimal pharmacophoric units. Selected natural products containing these functionalities have been targeted using previously known or on purpose-designed procedures, where the stereo-determining step can be: (i) a C-C bond forming reaction (e.g. the Zn-mediated addition of alkynyl nucleophiles to aldehydes in the presence of chiral aminoalcohols), (ii) a functional layout (e.g. the asymmetric organo- or metallo-catalytic reduction of ynones), or (iii) an enantiomeric resolution (e.g. a lipase-mediated kinetic resolution via acetylation). The promising medicinal importance of these targets is finally surveyed, and future investigation prospects are proposed, such as: (i) further total synthesis of known or future extraction products; (ii) the synthesis of non-natural analogues, with simpler lipophilic environments of the alkynylcarbinol-based pharmacophoric units; (iii) the variation and optimization of both the pharmacophoric units and their lipophilic environment; and (iv) investigations into the biological mode of action of these unique structures.
Collapse
Affiliation(s)
- Dymytrii Listunov
- UMR CNRS 5068, LSPCMIB, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France.
| | | | | | | |
Collapse
|
21
|
Listunov D, Maraval V, Saffon-Merceron N, Mallet-Ladeira S, Voitenko Z, Volovenko Y, Génisson Y, Chauvin R. On terminal alkynylcarbinols and derivatization thereof. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2015. [DOI: 10.17721/fujcv3i1p21-28] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The chemistry of three prototypes of secondary alkynylcarbinols (ACs), recently highlighted as challenging targets in anti-tumoral medicinal chemistry, is further documented by results on n-alkyl, alkynyl and alkenyl representatives. The N-naphthyl carbamate of an n-butyl-AC is thus characterized by X-ray crystallography. A novel dialkynylcarbinol (DAC) with synthetic potential is described, namely the highly dissymmetrical triisopropylsilyl-protected version of diethynylmethanol. The latter is shown to act as a dipolarophile in a selective Huisgen reaction with benzyl azide under CuAAC click conditions, giving an alkenyl-AC, where the alkene unsaturation is embedded in a 1,4-disubstituted 1,2,3-triazole ring, as confirmed by X-ray crystallography.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Remi Chauvin
- CNRS, LCC (Laboratoire de Chimie de Coordination)
| |
Collapse
|
22
|
Zhou ZF, Menna M, Cai YS, Guo YW. Polyacetylenes of marine origin: chemistry and bioactivity. Chem Rev 2014; 115:1543-96. [PMID: 25525670 DOI: 10.1021/cr4006507] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhen-Fang Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Zu Chong Zhi Road 555, Shanghai 201203, China
| | | | | | | |
Collapse
|
23
|
Januszewski JA, Tykwinski RR. Synthesis and properties of long [n]cumulenes (n ≥ 5). Chem Soc Rev 2014; 43:3184-203. [DOI: 10.1039/c4cs00022f] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review highlights the synthesis and reactivity of longer [n]cumulenes (n ≥ 5) and summarizes their electronic and structural properties.
Collapse
Affiliation(s)
- Johanna A. Januszewski
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
- 91054 Erlangen, Germany
| | - Rik R. Tykwinski
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
- 91054 Erlangen, Germany
| |
Collapse
|
24
|
Fang Z, Wills M. Asymmetric reduction of diynones and the total synthesis of (S)-panaxjapyne A. Org Lett 2013; 16:374-7. [PMID: 24377788 DOI: 10.1021/ol4032123] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The asymmetric transfer hydrogenation of a series of diynones has been achieved in high conversion and enantiomeric induction. When R(1) is a phenyl group, a competing alkyne reduction takes place; however, when R(1) is an alkyl group, this side-reaction is not observed. The application of the reduction to the total synthesis of the natural product (S)-panaxjapyne A in high enantiomeric excess is described.
Collapse
Affiliation(s)
- Zhijia Fang
- Department of Chemistry, The University of Warwick , Coventry, CV4 7AL, U.K
| | | |
Collapse
|
25
|
Srihari P, Sathish Reddy A, Yadav J, Yedlapudi D, Kalivendi SV. First total synthesis and structure confirmation of diacetylenic polyol (+)-oploxyne B. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
26
|
Shirouzu T, Watari K, Ono M, Koizumi K, Saiki I, Tanaka C, van Soest RWM, Miyamoto T. Structure, synthesis, and biological activity of a C-20 bisacetylenic alcohol from a marine sponge Callyspongia sp. JOURNAL OF NATURAL PRODUCTS 2013; 76:1337-1342. [PMID: 23855338 DOI: 10.1021/np400297p] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
An optically inactive C-20 bisacetylenic alcohol, (4E,16E)-icosa-4,16-diene-1,19-diyne-3,18-diol, was isolated from a marine sponge Callyspongia sp. as a result of screening of antilymphangiogenic agents from marine invertebrates. An optical resolution using chiral-phase HPLC gave each enantiomer, (-)-1 and (+)-2. Because the natural and synthetic enantiomers 1 and 2 showed different biological properties, we investigated the structure-activity relationships of bisacetylenic alcohols using 11 synthetic derivatives, and it is clarified that the essential structural unit for antiproliferative activity is the "1-yn-3-ol" on both termini and that there is a minimum chain length that connects the "1-yn-3-ol" moieties.
Collapse
Affiliation(s)
- Takayuki Shirouzu
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Li ST, Schnabel T, Lysenko S, Brandhorst K, Tamm M. Synthesis of unsymmetrical 1,3-diynes via alkyne cross-metathesis. Chem Commun (Camb) 2013; 49:7189-91. [DOI: 10.1039/c3cc43108h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
28
|
Suzuki I, Yasuda M, Baba A. Zn(ii) chloride-catalyzed direct coupling of various alkynes with acetals: facile and inexpensive access to functionalized propargyl ethers. Chem Commun (Camb) 2013; 49:11620-2. [DOI: 10.1039/c3cc46570e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Lysenko S, Volbeda J, Jones PG, Tamm M. Catalytic Metathesis of Conjugated Diynes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202101] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
30
|
Lysenko S, Volbeda J, Jones PG, Tamm M. Catalytic metathesis of conjugated diynes. Angew Chem Int Ed Engl 2012; 51:6757-61. [PMID: 22623355 DOI: 10.1002/anie.201202101] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Sergej Lysenko
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | | | | | | |
Collapse
|
31
|
Wyrembek P, Negri R, Appendino G, Mozrzymas JW. Inhibitory effects of oenanthotoxin analogues on GABAergic currents in cultured rat hippocampal neurons depend on the polyacetylenes' polarity. Eur J Pharmacol 2012; 683:35-42. [PMID: 22445880 DOI: 10.1016/j.ejphar.2012.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 02/21/2012] [Accepted: 03/04/2012] [Indexed: 11/15/2022]
Abstract
Oenanthotoxin (OETX) and dihydro-OETX are polyacetylenic diols occurring in Oenanthe crocata and are known to exert proconvulsant effects. We have recently demonstrated that these compounds downregulated GABAergic currents (Appendino et al., 2009) and that OETX induced open channel block and allosterically modulated GABA(A) receptors (Wyrembek et al., 2010). O. crocata also contains several minor OETX analogues and in the present study we tested whether their effect on GABA(A) receptors depends on the compounds' polarity. We investigated a series of five polyacetylenes characterized by a higher lipophylicity than OETX, (1-acetyl-2,3-dihydrooenanthotoxin - X1, 14-acetyloenanthotoxin-X2, 1-deoxyoenanthotoxin - X3, 14-deoxyoenanthotoxin - X4, 14-dehydro-1-deoxyOETX - X5, polarity sequence: X1>X2>X3>X4>X5). Their effects were tested first on miniature inhibitory postsynaptic currents (mIPSCs). All but X3, significantly decreased the mIPSC amplitudes while X1, X2, X4 decreased, and X3 and X5 increased the mIPSC frequency. The lack of a clear correlation between the compounds' polarity and their effect on mIPSCs might result from their presynaptic effects. We thus considered their impact on current responses to exogenous GABA applications. Amplitude reduction of current responses was most prominent for X1 and virtually absent for X5 indicating a dependence on the compound's polarity. Only X1 and X2 showed open channel block, while the kinetics of currents were affected only by X1 which further supports a dependence of the drug's effects on their polarity. In conclusion, GABA(A) receptors are inhibited and allosterically modulated by naturally occurring OETX analogues (except X5) and these effects are positively correlated with the compounds' polarity.
Collapse
Affiliation(s)
- Paulina Wyrembek
- Laboratory of Neuroscience, Department of Biophysics, Wrocław Medical University, ul. Chałubińskiego 3, 50-358 Wrocław, Poland
| | | | | | | |
Collapse
|
32
|
Graham ER, Tykwinski RR. Chiral Propargyl Alcohols via the Enantioselective Addition of Terminal Di- and Triynes to Aldehydes. J Org Chem 2011; 76:6574-83. [DOI: 10.1021/jo2008719] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Erin R. Graham
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Rik R. Tykwinski
- Institut für Organische Chemie, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Henkestrasse 42, D-91054 Erlangen, Germany
| |
Collapse
|
33
|
Chalifoux WA, Ferguson MJ, McDonald R, Melin F, Echegoyen L, Tykwinski RR. Adamantyl-endcapped polyynes. J PHYS ORG CHEM 2011. [DOI: 10.1002/poc.1874] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wesley A. Chalifoux
- Department of Chemistry; University of Alberta; Edmonton; Alberta; T6G 2G2; Canada
| | - Michael J. Ferguson
- X-ray Crystallography Laboratory, Department of Chemistry; University of Alberta; Edmonton; Alberta; T6G 2G2; Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory, Department of Chemistry; University of Alberta; Edmonton; Alberta; T6G 2G2; Canada
| | - Frederic Melin
- Institut de Chimie; Université de Strasbourg; 1 Rue Blaise Pascal; F-67070; Strasbourg; France
| | - Luis Echegoyen
- Department of Chemistry; The University of Texas at El Paso; El Paso; TX; 79968; USA
| | - Rik R. Tykwinski
- Institut für Organische Chemie; Friedrich-Alexander Universität Erlangen Nürnberg; Henkestraße 42; 91054; Erlangen; Germany
| |
Collapse
|
34
|
Schmidt R, Thorwirth R, Szuppa T, Stolle A, Ondruschka B, Hopf H. Fast, Ligand- and Solvent-Free Synthesis of 1,4-Substituted Buta-1,3-diynes by Cu-Catalyzed Homocoupling of Terminal Alkynes in a Ball Mill. Chemistry 2011; 17:8129-38. [DOI: 10.1002/chem.201100604] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Indexed: 11/07/2022]
|
35
|
Thaler T, Guo LN, Mayer P, Knochel P. Highly Diastereoselective C(sp3)C(sp) Cross-Coupling Reactions between 1,3- and 1,4-Substituted Cyclohexylzinc Reagents and Bromoalkynes through Remote Stereocontrol. Angew Chem Int Ed Engl 2011; 50:2174-7. [DOI: 10.1002/anie.201006879] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Indexed: 11/10/2022]
|
36
|
Thaler T, Guo LN, Mayer P, Knochel P. Hoch diastereoselektive C(sp3)-C(sp)-Kreuzkupplungen zwischen 1,3- und 1,4-substituierten Cyclohexylzinkreagentien und Bromalkinen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006879] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
37
|
Abstract
Polyyne glycosides are a class of natural products that have been found in terrestrial plants, fungi, and marine algae. Many display interesting and potentially useful biological activities, which in some cases has initiated synthetic efforts toward their formation. This review provides a comprehensive report of polyyne glycosides isolated from natural sources, as well as the synthesis of these molecules and their analogues.
Collapse
Affiliation(s)
- Yanqing Pan
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Todd L. Lowary
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Rik R. Tykwinski
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| |
Collapse
|