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Fernandes RA, Bhowmik A, Choudhary P. Muricatacin, a Gateway Molecule to Higher Acetogenin Synthesis. Chem Asian J 2020; 15:3660-3681. [DOI: 10.1002/asia.202000955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/15/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076, Maharashtra India
| | - Amit Bhowmik
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076, Maharashtra India
| | - Priyanka Choudhary
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076, Maharashtra India
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Bricout H, Vanbésien T, Wei MM, Billamboz M, Len C, Monflier E, Hapiot F. cRh-Catalyzed Hydroformylation of Divinylglycol: An Effective Way to Access 2,7-Dioxadecalin-3,8-diol. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hervé Bricout
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Théodore Vanbésien
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Muh-Mei Wei
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Muriel Billamboz
- Ecole Supérieure de Chimie Organique et Minérale (ESCOM); 60200 Compiègne France
| | - Christophe Len
- Université de Technologie de Compiègne, Centre de Recherches Royallieu, CS 60319; Sorbonne Universités; 60203 Compiègne France
| | - Eric Monflier
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Frédéric Hapiot
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
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3
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Quinn KJ, Hu Y, Miller PJ, Walsh RT, Caporello MA, Maliszewski ML, Markowski JH. Synthesis of the non-adjacent bis(tetrahydrofuran) core of squamostanin C by silicon-tethered, size-selective triple ring-closing metathesis. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Unzue A, Cribiú R, Hoffman MM, Knehans T, Lafleur K, Caflisch A, Nevado C. Iriomoteolides: novel chemical tools to study actin dynamics. Chem Sci 2018; 9:3793-3802. [PMID: 29780512 PMCID: PMC5939837 DOI: 10.1039/c7sc04286h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 03/10/2018] [Indexed: 01/25/2023] Open
Abstract
Despite its promising biological profile, the cellular targets of iriomoteolide-3a, a novel 15-membered macrolide isolated from Amphidinium sp., have remained unknown. A small library of non-natural iriomoteolide-3a analogues is presented here as a result of a novel, highly convergent, catalysis-based scaffold-diversification campaign, which revealed the suitable sites for chemical editing in the original core. We provide compelling experimental evidence for actin as one of iriomoteolides' primary cellular targets, establishing the ability of these secondary metabolites to inhibit cell migration, induce severe morphological changes in cells and cause a reversible cytoplasmic retraction and reduction of F-actin fibers in a time and dose dependent manner. These results are interpreted in light of the ability of iriomoteolides to stabilize F-actin filaments. Molecular dynamics simulations provide evidence for iriomoteolide-3a binding to the barbed end of G-actin. These results showcase iriomoteolides as novel and easily tunable chemical probes for the in vitro study of actin dynamics in the context of cell motility processes including cell invasion and division.
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Affiliation(s)
- A Unzue
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - R Cribiú
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - M M Hoffman
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - T Knehans
- Department of Biochemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - K Lafleur
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - A Caflisch
- Department of Biochemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - C Nevado
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
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5
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Liaw CC, Liou JR, Wu TY, Chang FR, Wu YC. Acetogenins from Annonaceae. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2016; 101:113-230. [PMID: 26659109 DOI: 10.1007/978-3-319-22692-7_2] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In recent decades, annonaceous acetogenins have become highly studied plant secondary metabolites in terms of their isolation, structure elucidation, synthesis, biological evaluation, mechanism of action, and toxicity. The aim of the present contribution is to summarize chemical and biological reports published since 1997 on annonaceous acetogenins and synthetic acetogenin mimics. The compounds are considered biologically in terms of their cytotoxicity for cancer cell lines, neurotoxicity, pesticidal effects, and miscellaneous activities.
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Affiliation(s)
- Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 804, Taiwan.
| | - Jing-Ru Liou
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Tung-Ying Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, 404, Taiwan.
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6
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Schmidt B, Kunz O. Bidirectional cross metathesis and ring-closing metathesis/ring opening of a C 2-symmetric building block: a strategy for the synthesis of decanolide natural products. Beilstein J Org Chem 2013; 9:2544-55. [PMID: 24367418 PMCID: PMC3869341 DOI: 10.3762/bjoc.9.289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 10/29/2013] [Indexed: 11/23/2022] Open
Abstract
Starting from the conveniently available ex-chiral pool building block (R,R)-hexa-1,5-diene-3,4-diol, the ten-membered ring lactones stagonolide E and curvulide A were synthesized using a bidirectional olefin-metathesis functionalization of the terminal double bonds. Key steps are (i) a site-selective cross metathesis, (ii) a highly diastereoselective extended tethered RCM to furnish a (Z,E)-configured dienyl carboxylic acid and (iii) a Ru-lipase-catalyzed dynamic kinetic resolution to establish the desired configuration at C9. Ring closure was accomplished by macrolactonization. Curvulide A was synthesized from stagonolide E through Sharpless epoxidation.
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Affiliation(s)
- Bernd Schmidt
- Institut für Chemie, Organische Synthesechemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
| | - Oliver Kunz
- Institut für Chemie, Organische Synthesechemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
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7
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Sousa BA, Keppler AF, Gariani RA, Comasseto JV, Dos Santos AA. Metallic chalcogenolates mediated modular Michael-aldol cascade reaction: an easy route to multi-functionalized chalcogenides and Morita–Baylis–Hillman adducts. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
A stereoselective total synthesis of the reported structure of goniotrionin (4) has been accomplished. The key steps involved the opening of a chiral epoxide, a highly diastereoselective Mukaiyama aerobic oxidative cyclization, a selective 1,2-syn Mukaiyama aldol reaction, and a Noyori reduction.
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Affiliation(s)
- Luiz C Dias
- Chemistry Institute, State University of Campinas, UNICAMP, 13083-970, C.P. 6154, Campinas, SP, Brazil.
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9
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Hattori Y, Konno H, Miyoshi H, Makabe H. Synthesis of Annonaceous Acetogenins and Their Inhibitory Action with Mitochondrial Complex I. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Cros F, Pelotier B, Piva O. Regioselective Tandem Ring Closing/Cross Metathesis of 1,5-Hexadien-3-ol Derivatives: Application to the Total Synthesis of Rugulactone. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000187] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- Bernd Schmidt
- Institut fuer Chemie, Organische Synthesechemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Golm, Germany
| | - Oliver Kunz
- Institut fuer Chemie, Organische Synthesechemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Golm, Germany
| | - Anne Biernat
- Institut fuer Chemie, Organische Synthesechemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Golm, Germany
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13
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Cribiú R, Jäger C, Nevado C. Syntheses and biological evaluation of iriomoteolide 3a and analogues. Angew Chem Int Ed Engl 2010; 48:8780-3. [PMID: 19813232 DOI: 10.1002/anie.200903379] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Riccardo Cribiú
- Organic Chemistry Institute, Universität Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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Facile synthesis of (−)-6-acetoxy-5-hexadecanolide by size-selective ring-closing/cross metathesis. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.179] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Schmidt B, Staude L. Ring-Size-Selective Enyne Metathesis as a Tool for Desymmetrization of an EnantiopureC2-Symmetric Building Block. J Org Chem 2009; 74:9237-40. [DOI: 10.1021/jo9018649] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bernd Schmidt
- Institut fuer Chemie, Organische Synthesechemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Golm, Germany
| | - Lucia Staude
- Institut fuer Chemie, Organische Synthesechemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Golm, Germany
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16
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Cribiú R, Jäger C, Nevado C. Synthese und biologische Evaluierung von Iriomoteolid-3a und seinen Analoga. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903379] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Imahori T, Ojima H, Yoshimura Y, Takahata H. Acceleration effect of an allylic hydroxy group on ring-closing enyne metathesis of terminal alkynes: scope, application, and mechanistic insights. Chemistry 2008; 14:10762-71. [PMID: 18850614 DOI: 10.1002/chem.200801439] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An interesting acceleration effect of an allylic hydroxy group on ring-closing enyne metathesis has been found. Ring-closing enyne metathesis of terminal alkynes possessing an allylic hydroxy group proceeded smoothly without the ethylene atmosphere generally necessary to promote the reaction. The synthesis of (+)-isofagomine with the aid of this efficient reaction has been demonstrated. Mechanistic studies of the acceleration effect were also carried out. Results of NMR studies suggested that the reaction proceeded via an "ene-then-yne" pathway. Kinetic studies indicated switching of the rate-determining step as a consequence of the presence of an allylic hydroxy group. These results suggest acceleration of the reentry step of Ru-carbene species by the allylic hydroxy group.
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Affiliation(s)
- Tatsushi Imahori
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
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Li N, Shi Z, Tang Y, Chen J, Li X. Recent progress on the total synthesis of acetogenins from Annonaceae. Beilstein J Org Chem 2008; 4:48. [PMID: 19190742 PMCID: PMC2633664 DOI: 10.3762/bjoc.4.48] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2008] [Accepted: 11/25/2008] [Indexed: 11/23/2022] Open
Abstract
An overview of recent progress on the total synthesis of acetogenins from Annonaceae during the past 12 years is provided. These include mono-tetrahydrofurans, adjacent bis-tetrahydrofurans, nonadjacent bis-tetrahydrofurans, tri-tetrahydrofurans, adjacent tetrahydrofuran-tetrahydropyrans, nonadjacent tetrahydrofuran-tetrahydropyrans, mono-tetrahydropyrans, and acetogenins containing only gamma-lactone. This review emphasizes only the first total synthesis of molecules of contemporary interest and syntheses that have helped to correct structures. In addition, some significant results on the novel synthesis and structure-activity relationship studies of annonaceous acetogenins are also introduced.
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Affiliation(s)
- Nianguang Li
- Department of Medicinal Chemistry, Nanjing University of Chinese Medicine, No. 138, Xianlindadao, Nanjing, Jiangsu 210046, P. R. China. Tel & Fax: +86-25-85811512
| | - Zhihao Shi
- Division of Organic Chemistry, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Yuping Tang
- Jiangsu Key Laboratory for TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210046, P. R. China
| | - Jianwei Chen
- Department of Medicinal Chemistry, Nanjing University of Chinese Medicine, No. 138, Xianlindadao, Nanjing, Jiangsu 210046, P. R. China. Tel & Fax: +86-25-85811512
| | - Xiang Li
- Department of Medicinal Chemistry, Nanjing University of Chinese Medicine, No. 138, Xianlindadao, Nanjing, Jiangsu 210046, P. R. China. Tel & Fax: +86-25-85811512
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Bourcet E, Virolleaud MA, Fache F, Piva O. Tandem cross-metathesis/hydrogenation: application to an enantioselective synthesis of pentadecyl 6-hydroxydodecanoate. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.09.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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The use of d-mannitol-derived C2-symmetric trienes in tandem metathesis reactions towards valuable lactones. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Wu MJ, Lee CL, Wu YC, Chen CP. Synthesis of (4R,15R,16R,21S)-Rollicosin and Its 4S Epimer. European J Org Chem 2008. [DOI: 10.1002/ejoc.200700930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Trost BM, Aponick A, Stanzl BN. A Convergent Pd-Catalyzed Asymmetric Allylic Alkylation ofdl- andmeso-Divinylethylene Carbonate: Enantioselective Synthesis of (+)-Australine Hydrochloride and Formal Synthesis of Isoaltholactone. Chemistry 2007; 13:9547-60. [PMID: 17847148 DOI: 10.1002/chem.200700832] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The use of a mixture of dl- and meso-divinylethylene carbonate as an electrophile in palladium-catalyzed asymmetric allylic alkylation reactions is reported. From the diastereomeric mixture of meso and chiral racemic starting materials, a single product is obtained in high optical purity employing either oxygen or nitrogen nucleophiles. The resulting dienes have proven to be versatile synthetic intermediates as each carbon is functionalized for further transformation and differentiated by virtue of the reaction. A mechanism for this intriguing transformation is proposed and a concise enantioselective total synthesis of (+)-australine hydrochloride is reported as well as a formal synthesis of isoaltholactone.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA.
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25
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Kim YJ, Grimm JB, Lee D. Absence of the Thorpe-Ingold Effect by gem-Diphenyl Groups in Ring-Closing Enyne Metathesis. Tetrahedron Lett 2007; 48:7961-7964. [PMID: 18046462 DOI: 10.1016/j.tetlet.2007.09.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In tandem ring-closing metathesis of alkynyl silaketals containing two different tethered olefins, the gem-dimethyl group showed the expected Thorpe-Ingold effect, thereby giving good level of group selectivity. Unexpectedly, however, the corresponding gem-diphenyl group did not show any Thorpe-Ingold effect for the ring closure reaction.
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Affiliation(s)
- Yi Jin Kim
- Department of Chemistry, University of Wisconsin-Madison, WI 53706
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27
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Virolleaud MA, Piva O. Tandem Sequential Ring-Closing Metathesis/Diels–Alder/Cross-Metathesis: Formation of Polycyclic Compounds by a New Three-Component Reaction. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600946] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Virolleaud MA, Piva O. Selective formation of dihydropyran derivatives by a tandem domino ring-closing metathesis/cross-metathesis. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2006.12.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Schmidt B, Nave S. Synthesis of Dihydrofurans and Dihydropyrans with Unsaturated Side Chains Based on Ring Size-Selective Ring-Closing Metathesis. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600473] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schmidt B, Nave S. Stereoselective Syntheses of Enantiomerically Pure 2,5-disubstituted Dihydropyrans Based on Olefin Metathesis. J Org Chem 2006; 71:7364-9. [PMID: 16958531 DOI: 10.1021/jo061190k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A short synthesis of 2,5-disubstituted dihydropyrans starting from d-mannitol as a chiral building block is described. Our synthetic approach combines ruthenium-catalyzed ring closing olefin metathesis and palladium-catalyzed nucleophilic substitution.
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Affiliation(s)
- Bernd Schmidt
- Universität Potsdam, Institut für Chemie, Organische Chemie II, Karl-Liebknecht-Strasse 24-25, Haus 25, D-14476 Golm, Germany.
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32
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Michaelis S, Blechert S. Total synthesis of (+)-phomopsolide C by ring-size selective ring-closing metathesis/cross-metathesis. Org Lett 2006; 7:5513-6. [PMID: 16288544 DOI: 10.1021/ol052332k] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text]A new strategy for the synthesis of chiral 6-substituted 5,6-dihydro-5-hydroxypyran-2-ones by ring-size selective ring-closing metathesis (RCM) and its application to a short total synthesis of (+)-phomopsolide C are described. The key bond-forming reactions in this approach are a chemoselective cross-metathesis (CM) and RCM.
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Affiliation(s)
- Simon Michaelis
- Institut für Chemie, Technische Universität Berlin, Strasse des 17.Juni 135, 10623 Berlin, Germany
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Trost BM, Aponick A. Palladium-catalyzed asymmetric allylic alkylation of meso- and dl-1,2-divinylethylene carbonate. J Am Chem Soc 2006; 128:3931-3. [PMID: 16551099 PMCID: PMC2531165 DOI: 10.1021/ja0578348] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium-catalyzed asymmetric allylic alkylation of a 1:1 mixture of dl- and meso-1,2-divinylethylene carbonate is reported. For the first time, both the ionization and nucleophilic addition steps of the catalytic cycle act as enantiodiscriminating steps to give a single product in high enantiomeric excess. The reactions proceed in >98% ee to efficiently generate useful chiral building blocks from acrolein. The absolute and relative configurations of iso-cladospolide B and 11-epi-iso-cladospolide B were verified by total synthesis, solving an apparent discrepancy in the literature.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA.
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Makabe H, Kimura Y, Higuchi M, Konno H, Murai M, Miyoshi H. Synthesis of (4R,15R,16R,21S)- and (4R,15S,16S,21S)-rollicosin, squamostolide, and their inhibitory action with bovine heart mitochondrial complex I. Bioorg Med Chem 2006; 14:3119-30. [PMID: 16431114 DOI: 10.1016/j.bmc.2005.12.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2005] [Revised: 12/14/2005] [Accepted: 12/15/2005] [Indexed: 11/17/2022]
Abstract
A convergent stereoselective synthesis of (4R,15R,16R,21S)- and (4R,15S,16S,21S)-rollicosin and squamostolide was accomplished via a Pd-catalyzed cross-coupling reaction. The inhibitory activity of these compounds was examined with bovine heart mitochondrial NADH-ubiquinone oxidoreductase. These compounds showed a remarkably weak inhibitory activity compared to ordinary acetogenins such as bullatacin. Our results indicate that to maintain potent inhibitory effect, the hydroxylated lactone cannot substitute for the hydroxylated mono- or bis-THF rings with a long alkyl chain that can be seen in ordinary acetogenins.
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Affiliation(s)
- Hidefumi Makabe
- Sciences of Functional Foods, Graduate School of Agriculture, Shinshu University, 8304 Minami-minowa, Kamiina, Nagano 399-4598, Japan.
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36
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Tominaga H, Maezaki N, Yanai M, Kojima N, Urabe D, Ueki R, Tanaka T. First Total Synthesis of Longimicin D. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500850] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Schmidt B, Nave S. Control of ring size selectivity by substrate directable RCM. Chem Commun (Camb) 2006:2489-91. [PMID: 16758025 DOI: 10.1039/b604359c] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxy groups may exert strong catalyst-directing effects in olefin metathesis reactions, which are exploited for a ring size-selective RCM reaction.
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Affiliation(s)
- Bernd Schmidt
- Institut für Chemie der Universität Potsdam, Karl-Liebknecht-Strasse 24-25, Haus 25, D-14476 Golm, Germany.
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Lee CL, Lin CF, Lin WR, Wang KS, Chang YH, Lin SR, Wu YC, Wu MJ. Design, syntheses, and biological evaluations of squamostolide and its related analogs. Bioorg Med Chem 2005; 13:5864-72. [PMID: 15993613 DOI: 10.1016/j.bmc.2005.05.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2005] [Revised: 05/12/2005] [Accepted: 05/13/2005] [Indexed: 11/16/2022]
Abstract
Squamostolide and its related analogs were designed and synthesized for biological evaluation. All these compounds were tested for growth inhibition activities against human tumor cell lines, in which one of the compounds showed the most potent cytotoxicity among these derivatives against a full panel of 60 human cancer cell lines. The same compound also showed G2/M phase arrest and a weak apoptotic effect during flow cytometric analysis.
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Affiliation(s)
- Cheng-Lin Lee
- Faculty of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
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