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Woźnicki P, Korzeniowska E, Stankevič M. Intramolecular Nucleophilic Substitution of ω-Haloalkylphosphine Derivatives. J Org Chem 2017; 82:10271-10296. [PMID: 28857562 DOI: 10.1021/acs.joc.7b01767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
ω-Haloalkylphosphine derivatives undergo the intramolecular nucleophilic substitution reaction upon treatment with a strong base, yielding either cycloalkylphosphine derivatives or heterocyclic phosphine derivatives. The selectivity of the cyclization of (ω-haloalkyl)alkylarylphosphine derivatives depends strongly on the distance between the electrophilic and nucleophilic carbon atoms and the structure of the phosphorus moiety. The desymmetrization of dimethylphenylphosphine sulfide followed by haloalkylation and cyclization led to the enantiomerically enriched tertiary phosphine sulfide, possessing a cyclohexyl fragment at the phosphorus.
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Affiliation(s)
- Paweł Woźnicki
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University , Gliniana 33, 20-614 Lublin, Poland
| | - Ewelina Korzeniowska
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University , Gliniana 33, 20-614 Lublin, Poland
| | - Marek Stankevič
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University , Gliniana 33, 20-614 Lublin, Poland
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2
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Pfaffenbach M, Gaich T. The Rhazinilam-Leuconoxine-Mersicarpine Triad of Monoterpenoid Indole Alkaloids. THE ALKALOIDS: CHEMISTRY AND BIOLOGY 2017; 77:1-84. [DOI: 10.1016/bs.alkal.2016.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Recent advances in design, synthesis and bioactivity of paclitaxel-mimics. Fitoterapia 2016; 110:26-37. [DOI: 10.1016/j.fitote.2016.02.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/17/2016] [Accepted: 02/18/2016] [Indexed: 11/18/2022]
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4
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Chen DYK, Youn SW. C-H activation: a complementary tool in the total synthesis of complex natural products. Chemistry 2012; 18:9452-74. [PMID: 22736530 DOI: 10.1002/chem.201201329] [Citation(s) in RCA: 451] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Indexed: 02/05/2023]
Abstract
The recent advent of transition-metal mediated C-H activation is revolutionizing the synthetic field and gradually infusing a "C-H activation mind-set" in both students and practitioners of organic synthesis. As a powerful testament of this emerging synthetic tool, applications of C-H activation in the context of total synthesis of complex natural products are beginning to blossom. Herein, recently completed total syntheses showcasing creative and ingenious incorporation of C-H activation as a strategic manoeuver are compared with their "non-C-H activation" counterparts, illuminating a new paradigm in strategic synthetic design.
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Affiliation(s)
- David Y-K Chen
- Department of Chemistry, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea.
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5
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Cao H, Zhan H, Shen D, Zhao H, Liu Y. Ruthenium-catalyzed coupling reaction of 2,3,5-trisubstituted furans with aryl halides through C–H bond cleavages. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Song L, Liu K, Li C. Efficient and Regioselective 9-Endo Cyclization of α-Carbamoyl Radicals. Org Lett 2011; 13:3434-7. [DOI: 10.1021/ol201180g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liyan Song
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Kun Liu
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Chaozhong Li
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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7
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Bringmann G, Gulder T, Gulder TAM, Breuning M. Atroposelective Total Synthesis of Axially Chiral Biaryl Natural Products. Chem Rev 2010; 111:563-639. [DOI: 10.1021/cr100155e] [Citation(s) in RCA: 909] [Impact Index Per Article: 64.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tanja Gulder
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tobias A. M. Gulder
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Matthias Breuning
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
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8
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Diemer V, Chaumeil H, Defoin A, Carré C. Syntheses of extreme sterically hindered 4-methoxyboronic acids. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.11.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Bey E, Marchais-Oberwinkler S, Negri M, Kruchten P, Oster A, Klein T, Spadaro A, Werth R, Frotscher M, Birk B, Hartmann RW. New Insights into the SAR and Binding Modes of Bis(hydroxyphenyl)thiophenes and -benzenes: Influence of Additional Substituents on 17β-Hydroxysteroid Dehydrogenase Type 1 (17β-HSD1) Inhibitory Activity and Selectivity. J Med Chem 2009; 52:6724-43. [DOI: 10.1021/jm901195w] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emmanuel Bey
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | | | - Matthias Negri
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Patricia Kruchten
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Alexander Oster
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Tobias Klein
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Alessandro Spadaro
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Ruth Werth
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Martin Frotscher
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Barbara Birk
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
| | - Rolf W. Hartmann
- Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany
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10
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Marchais-Oberwinkler S, Kruchten P, Frotscher M, Ziegler E, Neugebauer A, Bhoga U, Bey E, Müller-Vieira U, Messinger J, Thole H, Hartmann RW. Substituted 6-Phenyl-2-naphthols. Potent and Selective Nonsteroidal Inhibitors of 17β-Hydroxysteroid Dehydrogenase Type 1 (17β-HSD1): Design, Synthesis, Biological Evaluation, and Pharmacokinetics. J Med Chem 2008; 51:4685-98. [DOI: 10.1021/jm800367k] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sandrine Marchais-Oberwinkler
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Patricia Kruchten
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Martin Frotscher
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Erika Ziegler
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Alexander Neugebauer
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Umadevi Bhoga
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Emmanuel Bey
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Ursula Müller-Vieira
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Josef Messinger
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Hubert Thole
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
| | - Rolf W. Hartmann
- 8.2 Pharmaceutical and Medicinal Chemistry, Saarland University, P.O. Box 15 11 50, D-66041 Saarbrücken, Germany, Pharmacelsus CRO, Science Park 2, D-66123 Saarbrücken, Germany, and Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, D-30173 Hannover, Germany
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11
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Affiliation(s)
- Toh-Seok Kam
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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12
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Hitce J, Retailleau P, Baudoin O. Palladium-catalyzed intramolecular C(sp(3))--H functionalization: catalyst development and synthetic applications. Chemistry 2007; 13:792-9. [PMID: 17044108 DOI: 10.1002/chem.200600811] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A novel catalytic system, based on a mixture of palladium acetate and tris(5-fluoro-2-methylphenyl)phosphane (F-TOTP), has been designed for the intramolecular C--H functionalization of alkane segments. Among other analogues of tris(2-methylphenyl)phosphane (P(o-tol)(3)), F-TOTP was shown to have the optimal metal-bonding properties for this reaction. This catalytic system operated under milder reaction conditions that allowed the regioselective production of various olefins adjacent to a quaternary benzylic carbon atom, as well as novel bi- and tricyclic molecules. A general mechanism was proposed, with the preferential formation of a six-membered palladium(II) palladacycle after oxidative addition and cyclopalladation. The regioselective C--H functionalization of alkyl groups into olefins was illustrated in the synthesis of the antihypertensive drug verapamil and an analogue. A particularly mild ruthenium-catalyzed direct hydroamidation of the intermediate olefin in this synthesis is also reported.
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Bonneau AL, Robert N, Hoarau C, Baudoin O, Marsais F. A new synthetic approach to biaryls of the rhazinilam type. Application to synthesis of three novel phenylpyridine-carbamate analogues. Org Biomol Chem 2007; 5:175-83. [PMID: 17164923 DOI: 10.1039/b613173e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of three novel racemic phenylpyridine-carbamate analogues of rhazinilam and their biological evaluation as inhibitors of microtubule assembly and disassembly by interaction with tubulin are described. The sterically hindered ortho-disubstituted biaryl unit as the challenging key structural element is first obtained by a sequential regiocontrolled nucleophilic addition of a lithium ortho-lithiohomobenzylic alkoxide species to 3-bromo-5-oxazolyl pyridine as the electrophile and a subsequent oxidation step. The incorporation of the amino group by replacement of the bromide has been achieved using a Buchwald-Hartwig amination coupling. Ultimate deprotection steps furnished free-amino and free-hydroxyl appendages which were connected by phosgenation to furnish the nine-membered median carbamate ring.
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Affiliation(s)
- Anne-Laure Bonneau
- Laboratoire de Chimie Organique Fine et Hétérocyclique UMR 6014, Université et INSA de Rouen, Place E. Blondel, 76131, Mont Saint Aignan, France
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Hájíček J. A Review on Recent Developments in Syntheses of the post-Secodine Indole Alkaloids. Part II: Modified Alkaloid Types. ACTA ACUST UNITED AC 2007. [DOI: 10.1135/cccc20070821] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The second part of the planned review on developments in the field of total and formal total synthesis of the post-secodine indole alkaloids concentrates on modified alkaloid types, i.e. those skeletons derived from primary types by formation of additional and/or rupture of existing bonds, while connectivities next to indol(e)ine moiety remain intact. It thus reviews the synthesis of alkaloids of quebrachamine/cleavamine type including VLB-bis-indoles, rhazinilam type, aspidofractinine/kopsane and kopsifoline type, as well as kopsijasminilam alkaloids, lapidilectine B and danuphylline. It covers the literature of from 1991-1992 up to approximately end 2006. A review with 174 references.
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Décor A, Monse B, Martin MT, Chiaroni A, Thoret S, Guénard D, Guéritte F, Baudoin O. Synthesis and biological evaluation of B-ring analogues of (−)-rhazinilam. Bioorg Med Chem 2006; 14:2314-32. [PMID: 16314101 DOI: 10.1016/j.bmc.2005.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2005] [Revised: 11/03/2005] [Accepted: 11/08/2005] [Indexed: 10/25/2022]
Abstract
Three macrocyclic analogues of rhazinilam 1 having a 11- or 12-membered B-ring with an endocyclic carbamate group or an amino-acid residue were synthesized from the natural product. These analogues 3 and 4 displayed a very low activity on tubulin. Thirty N-1 and C-16 substituted analogues of rhazinilam were also synthesized regioselectively from rhazinilam. Stereochemical analyses showed that N-1 and C-16alpha analogues have the same conformation as rhazinilam, whereas C-16beta analogues adopt a different conformation for rings B and D. All N-1 and C-16 analogues were less active than rhazinilam on tubulin, though analogues 5a, 6aalpha, 6balpha, and 6f having the less bulky substituents retained close affinities. A few analogues either active (like 6f) or inactive (like 5o) on tubulin showed significant inhibition of the growth of KB cancer cells.
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Affiliation(s)
- Anne Décor
- Institut de Chimie des Substances Naturelles, CNRS, avenue de la Terrasse, 91198 Gif-sur-Yvette cedex, France
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Morita H, Awang K, Hadi AHA, Takeya K, Itokawa H, Kobayashi J. Conformational analysis of rhazinilam and three-dimensional quantitative structure–activity relationships of rhazinilam analogues. Bioorg Med Chem Lett 2005; 15:1045-50. [PMID: 15686909 DOI: 10.1016/j.bmcl.2004.12.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2004] [Revised: 12/09/2004] [Accepted: 12/10/2004] [Indexed: 11/19/2022]
Abstract
3D QSAR of rhazinilam (1), an alkaloid isolated from Rhazya stricta (Apocynaceae) with an activity involving disassembly of microtubules and its derivatives was investigated by using the comparative molecular field analysis (CoMFA). In an effort to get a better understanding of the correlation between conformation and antitubulin activity of 1, most probable minimum energy conformation in solution of 1 was analyzed on the basis of NMR data of 1 in solution. The results indicated a correlation between the antitubulin activity of these alkaloids and the steric and electrostatic factors, which modulate their biological activity, and accounted for the potent activities of 1 with suitable relationship for the overall conformation.
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Affiliation(s)
- Hiroshi Morita
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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17
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Natural Bridged Biaryls with Axial Chirality and Antimitotic Properties. BIOACTIVE NATURAL PRODUCTS (PART J) 2003. [DOI: 10.1016/s1572-5995(03)80011-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Expedient Syntheses of Unsymmetrical 4-Bromo-2-carboxyl-biaryls via Diels-Alder Cycloadditions of 3,5-Dibromo-2-pyrone with Vinyl Arenes, Followed by One Pot, Three Step Aromatization Reactions. B KOREAN CHEM SOC 2002. [DOI: 10.5012/bkcs.2002.23.7.1021] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Baudoin O, Cesario M, Guénard D, Guéritte F. Application of the palladium-catalyzed borylation/Suzuki coupling (BSC) reaction to the synthesis of biologically active biaryl lactams. J Org Chem 2002; 67:1199-207. [PMID: 11846663 DOI: 10.1021/jo0160726] [Citation(s) in RCA: 215] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The palladium-catalyzed, two-step, one-pot borylation/Suzuki coupling (BSC) reaction was developed to synthesize sterically hindered 2,2'-disubstituted biphenyl and phenyl-indole compounds in a short, simple, and efficient manner from two easily accessible aryl halides. High yields can be obtained by choosing properly both components according to their rough electronic properties. The illustration of the utility of this method was provided by the solution and solid-phase synthesis of seven- or eight-membered biphenyl lactams 5a-e, as well as paullone 3a. These compounds exhibit moderate albeit significant cytotoxicities and may serve as structural models for future medicinal chemistry developments.
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Affiliation(s)
- Olivier Baudoin
- Institut de Chimie des Substances Naturelles, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France.
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20
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Pasquinet E, Rocca P, Richalot S, Guéritte F, Guénard D, Godard A, Marsais F, Quéguiner G. First total synthesis of phenylpyridine analogues of the antimitotic rhazinilam. J Org Chem 2001; 66:2654-61. [PMID: 11304183 DOI: 10.1021/jo0014156] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first synthesis of phenylpyridine analogues of rhazinilam and evaluation of these new structures as inhibitors of microtubule disassembly by interaction with tubulin are described. The synthesis is based on such key steps as picolinic metalation, hetero-ring cross-coupling and reduction of an acetyl group to an ethyl group. Elaboration of a quaternary picolinic carbon is one of the challenges of the synthesis. Biological evaluation of compounds bearing a quaternary picolinic carbon showed interactions with tubulin similar to (-)-rhazinilam but at a lower level.
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Affiliation(s)
- E Pasquinet
- Institut de Recherche en Chimie Organique Fine, UMR 6014, Institut National des Sciences Appliquées, B.P. 08, 76131 Mont Saint Aignan Cedex, France
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Baudoin O, Guénard D, Guéritte F. Palladium-catalyzed borylation of ortho-substituted phenyl halides and application to the one-pot synthesis of 2,2'-disubstituted biphenyls. J Org Chem 2000; 65:9268-71. [PMID: 11149887 DOI: 10.1021/jo005663d] [Citation(s) in RCA: 184] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- O Baudoin
- Institut de Chimie des Substances Naturelles, CNRS, 91198 Gif-sur-Yvette, France.
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Dupont C, Guénard D, Tchertanov L, Thoret S, Guéritte F. D-ring substituted rhazinilam analogues: semisynthesis and evaluation of antitubulin activity. Bioorg Med Chem 1999; 7:2961-9. [PMID: 10658602 DOI: 10.1016/s0968-0896(99)00241-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Novel (-)- and (+)-rhazinilam derivatives substituted on the D-ring (compounds 3, 4, 5 and 6) have been prepared from (+)-vincadifformine 7 and (-)-tabersonine and evaluated against the disassembly of microtubules into tubulin. Along with this study, a reproducible 'one pot' semisynthesis of (-)-rhazinilam 1 from (+)-1,2-didehydroaspidospermidine 2 was performed allowing the easy preparation of these new compounds.
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Affiliation(s)
- C Dupont
- Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France
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Pascal C, Dubois J, Guénard D, Tchertanov L, Thoret S, Guéritte F. Antimitotic agents interacting with tubulin: Synthesis and structure-activity relationships of novel ortho bridged biphenyls of the rhazinilam type. Tetrahedron 1998. [DOI: 10.1016/s0040-4020(98)00903-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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