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Luong TTH, Brachet E, Brion JD, Messaoudi S, Alami M. Palladium-Catalyzed Coupling ofN-Aminoazoles with 3-Halo-Substituted Quinolin-2(1H)-ones, Coumarins, Quinoxalin-2(1H)-ones, and Chromenes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Synthesis and antiproliferative activity of novobiocin analogues as potential hsp90 inhibitors. Eur J Med Chem 2014; 83:498-507. [DOI: 10.1016/j.ejmech.2014.06.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 06/13/2014] [Accepted: 06/28/2014] [Indexed: 01/05/2023]
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Bruneau A, Brion JD, Alami M, Messaoudi S. Stereoselective copper-catalyzed Chan–Lam–Evans N-arylation of glucosamines with arylboronic acids at room temperature. Chem Commun (Camb) 2013; 49:8359-61. [DOI: 10.1039/c3cc44780d] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Brachet E, Peyrat JF, Brion JD, Messaoudi S, Alami M. A palladium-catalyzed coupling of 3-chloroquinoxalinones with various nitrogen-containing nucleophiles. Org Biomol Chem 2013; 11:3808-16. [DOI: 10.1039/c3ob40338f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Brachet E, Messaoudi S, Peyrat JF, Brion JD, Alami M. Palladium-Catalyzed Cross-Coupling of 1-Aminoazoles with Aryl Chlorides: Application to the Synthesis of UnsymmetricalN,N′-Diaryl-1-aminoindoles. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200440] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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The synthesis of 2-deoxy-α-d-glycosides from d-glycals catalyzed by TMSI and PPh3. Carbohydr Res 2012; 358:19-22. [DOI: 10.1016/j.carres.2012.06.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 05/05/2012] [Accepted: 06/04/2012] [Indexed: 11/18/2022]
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Schmidt AW, Reddy KR, Knölker HJ. Occurrence, Biogenesis, and Synthesis of Biologically Active Carbazole Alkaloids. Chem Rev 2012; 112:3193-328. [PMID: 22480243 DOI: 10.1021/cr200447s] [Citation(s) in RCA: 942] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Arndt W. Schmidt
- Department Chemie, Technische Universität Dresden,
Bergstrasse 66, 01069 Dresden, Germany
| | - Kethiri R. Reddy
- Department Chemie, Technische Universität Dresden,
Bergstrasse 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden,
Bergstrasse 66, 01069 Dresden, Germany
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Lin HC, Pan JF, Chen YB, Lin ZP, Lin CH. Stereoselective glycosylation of endo-glycals by microwave- and AlCl3-assisted catalysis. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.124] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yamasaki K, Hishiki R, Kato E, Kawabata J. Study of kaempferol glycoside as an insulin mimic reveals glycon to be the key active structure. ACS Med Chem Lett 2011; 2:17-21. [PMID: 24900249 DOI: 10.1021/ml100171x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 10/06/2010] [Indexed: 01/15/2023] Open
Abstract
Diabetes mellitus is increasing in prevalence with patient numbers rising throughout the world. Current treatments for diabetes mellitus focus on control of blood glucose levels. Certain kinds of flavonoids or their glycosides stimulate cells to improve glucose uptake and lower blood glucose levels. We synthesized kaempferol 3-O-neohesperidoside (1), a naturally occurring substance present in Cyathea phalerata Mart., reported to mimic the action of insulin. Synthetic 1 promoted glucose uptake in the cultured cell line, L6. Further studies to determine the core structure responsible for this activity using synthetic compounds revealed neohesperidose to be the primary pharmacophore. These findings support the use of certain saccharides as a potential novel treatment for diabetes mellitus by replacing or supporting insulin.
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Affiliation(s)
- Kazuaki Yamasaki
- Laboratory of Food Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture
| | - Ryogo Hishiki
- Laboratory of Food Biochemistry, Department of Bioscience and Chemistry, Faculty of Agriculture
| | - Eisuke Kato
- Laboratory of Food Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture
| | - Jun Kawabata
- Laboratory of Food Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture
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Deslandes S, Chassaing S, Delfourne E. Marine pyrrolocarbazoles and analogues: synthesis and kinase inhibition. Mar Drugs 2009; 7:754-86. [PMID: 20098609 PMCID: PMC2810226 DOI: 10.3390/md7040754] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 11/18/2009] [Accepted: 11/27/2009] [Indexed: 12/15/2022] Open
Abstract
Granulatimide and isogranulatimide are alkaloids obtained from marine sources which have been shown to inhibit cell-cycle G2-checkpoint, targeting more particularly checkpoint 1 kinase (Chk1). At a structural level, they possess a characteristic pyrrolocarbazole framework also shared by the well-known rebeccamycin and staurosporine microbial metabolites which have been described to inhibit topoisomerase I and diverse kinases, respectively. This review reports precisely on the synthesis and kinase inhibitory activities of pyrrolocarbazole-based analogues of granulatimide.
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Affiliation(s)
- Sébastien Deslandes
- Laboratoire de Synthèse et Physicochimie de Molécules d’Intérêt Biologique, UMR CNRS 5068, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cédex 9, France; E-Mails:
(S.D.);
(S.C.)
| | - Stefan Chassaing
- Laboratoire de Synthèse et Physicochimie de Molécules d’Intérêt Biologique, UMR CNRS 5068, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cédex 9, France; E-Mails:
(S.D.);
(S.C.)
| | - Evelyne Delfourne
- Laboratoire de Synthèse et Physicochimie de Molécules d’Intérêt Biologique, UMR CNRS 5068, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cédex 9, France; E-Mails:
(S.D.);
(S.C.)
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Marminon C, Anizon F, Moreau P, Pfeiffer B, Pierré A, Golsteyn RM, Peixoto P, Hildebrand MP, David-Cordonnier MH, Lozach O, Meijer L, Prudhomme M. Rebeccamycin derivatives as dual DNA-damaging agents and potent checkpoint kinase 1 inhibitors. Mol Pharmacol 2008; 74:1620-9. [PMID: 18768386 DOI: 10.1124/mol.108.049346] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Rebeccamycin is an indolocarbazole class inhibitor of topoisomerase I. In the course of structure-activity relationship studies on rebeccamycin derivatives, we have synthesized analogs with the sugar moiety attached to either one or both indole nitrogens. Some analogs, especially those with substitutions at the 6' position of the carbohydrate moiety, exhibit potent inhibitory activity toward checkpoint kinase 1 (Chk1), a kinase that has a major role in the G(2)/M checkpoint in response to DNA damage. Some of these compounds retained a genotoxic activity either through intercalation into the DNA and/or by topoisomerase I-mediated DNA cleavage. We explored the structure-activity relationship between these compounds and their multiple targets. These rebeccamycin derivatives represent a novel class of potential antitumor agents that have a dual effect and might selectively induce the death of cancer cells.
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Affiliation(s)
- Christelle Marminon
- Laboratoire SEESIB, Université Blaise Pascal, Unité Mixte de Recherche 6504 du Centre National de la Recherche Scientifique, Aubière, France.
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Elamparuthi E, Linker T. Convenient synthesis of branched-chain glycosamines by radical addition of nitromethane to glycals. Org Lett 2008; 10:1361-4. [PMID: 18331045 DOI: 10.1021/ol703062s] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Radical addition-reduction-acetylation is the simple three-step sequence for the synthesis of branched-chain glycosamines 3 from glycals 1 and nitromethane (2). The intermediary formed 2-C-nitromethyl-pyranosides are valuable precursors for the synthesis of C-2 branched disaccharides.
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Affiliation(s)
- Elangovan Elamparuthi
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
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Yin J, Sommermann T, Linker T. Convenient syntheses and transformations of 2-C-malonyl carbohydrates. Chemistry 2008; 13:10152-67. [PMID: 17955558 DOI: 10.1002/chem.200701151] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
2-C-malonyl carbohydrates were synthesized in only few steps and high yields by radical additions of malonates to glycals. For the first time, the undesired formation of nitrates was completely suppressed with anhydrous cerium ammonium nitrate (CAN) as oxidizing agent. A coherent explanation for the high stereoselectivities of the additions to gluco-configured glycals was provided by variation of the substituents in the 3-position. We established steric effects for the face selectivity, and electronic effects strongly influence the reactivity of the double bonds. The scope and limitation of transition-metal-mediated radical reactions in the synthesis of 2-C-branched carbohydrates was thoroughly investigated. Thus, unsaturated disaccharides and benzyl-protected glycals were used as substrates for the first time. Finally, the 2-C-malonyl carbohydrates were transformed into various products by decarboxylation, saponification and reduction, which afforded interesting precursors for C-disaccharides. In this paper we describe the syntheses of more than 40 new 2-C-analogues of carbohydrates, which were isolated in high yields in analytically pure form. Therefore, the transition-metal-mediated radical addition of malonates to glycals offers a simple and convenient entry to such important carbohydrate derivatives.
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Affiliation(s)
- Jian Yin
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
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Parcerisa J, Romero M, Pujol MD. Synthesis of 2-substituted-7-azaindoles from 2-amino-3-picolin. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.11.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wakefield B, Halter RJ, Wipf P. Synthesis of (+/-)-thiohalenaquinone by iterative metalations of thiophene. Org Lett 2007; 9:3121-4. [PMID: 17630756 DOI: 10.1021/ol071258y] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of a thiophene-containing analogue of halenaquinone was realized. Key steps include an alkynyl ketone-benzocyclobutane Diels-Alder reaction to construct the C,D-ring naphthalene subunit, a Heck cyclization to form the quaternary carbon, and a ring closing metathesis to add the A-ring.
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Affiliation(s)
- Bryan Wakefield
- Department of Chemistry and Center for Chemical Methodologies & Library Development, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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Gluszok S, Goossens L, Depreux P, Barbry D, Hénichart J. Synthesis of the 7‐Azaindole (1H‐Pyrrolo[2,3‐b]pyridine) Analogous to Cannabimimetic JHW 200. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910600767504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sébastien Gluszok
- a Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille , Lille, France
| | - Laurence Goossens
- a Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille , Lille, France
| | - Patrick Depreux
- a Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille , Lille, France
| | - Didier Barbry
- b Laboratoire de Chimie Organique , Université des Sciences et Technologies de Lille , Villeneuve d'Ascq, France
| | - Jean‐Pierre Hénichart
- a Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille , Lille, France
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Abstract
7-Azaindoles are versatile building blocks, especially in medicinal chemistry, where they serve as bioisosteres of indoles or purines. Herein, we are presenting a robust and flexible synthesis of 1,3- and 1,3,6-substituted 7-azaindoles starting from nicotinic acid derivatives or 2,6-dichloropyridine, respectively. Microwave heating dramatically accelerates the penultimate reaction step, an epoxide-opening-cyclization-dehydration sequence. The functional group compatibility of the reaction is examined as well as the application of the products in further functionalizations.
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Affiliation(s)
- Hartmut Schirok
- Bayer HealthCare AG, Pharma Research, D-42096 Wuppertal, Germany.
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Moffat D, Nichols CJ, Riley DA, Simpkins NS. The synthesis of bioactive indolocarbazoles related to K-252a. Org Biomol Chem 2005; 3:2953-75. [PMID: 16186927 DOI: 10.1039/b506444a] [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] [Indexed: 11/21/2022]
Abstract
A range of functionalised indolocarbazoles, related to the natural product K-252a, have been prepared, starting from a readily available bridged cyclopentene. Sequences of transformations, involving initial hydroboration-oxidation to give a ketone, or by dihydroxylation and cyclic sulfate formation, enable the preparation of diverse indolocarbazole products. Issues of imide nitrogen protection for the indolocarbazole, and opportunities for asymmetric desymmetrisation of key intermediates were also explored. A novel chiral lithium amide base mediated transformation of a cyclic sulfate intermediate gave the anticipated ketone product in up to 87% ee. A number of compounds, in the form of unprotected imide substituted indolocarbazoles, were screened for biological activity and were found to be potent inhibitors of a number of kinase enzymes.
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Affiliation(s)
- David Moffat
- Celltech Therapeutics Ltd, 216 Bath Road, Slough, SL1 4EN, UK
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Nichols CJ, Simpkins NS. Synthesis of bioactive indolocarbazoles: synthesis, nucleophilic ring-opening and chiral base desymmetrisation of a cyclic sulfate intermediate. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.08.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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