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Boulangé A, Peixoto PA, Franck X. Diastereoselective IBX Oxidative Dearomatization of Phenols by Remote Induction: Towards the Epicocconone Core Framework. Chemistry 2011; 17:10241-5. [DOI: 10.1002/chem.201101681] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Indexed: 11/05/2022]
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Bizet V, Lefebvre V, Baudoux J, Lasne MC, Boulangé A, Leleu S, Franck X, Rouden J. Metal-Free SN2′ Decarboxylative Rearrangement of β-Keto Esters. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100120] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Clavé G, Ronco C, Boutal H, Kreich N, Volland H, Franck X, Romieu A, Renard PY. Facile and rapid access to linear and truncated microcystin analogues for the implementation of immunoassays. Org Biomol Chem 2009; 8:676-90. [PMID: 20090987 DOI: 10.1039/b920193a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of simplified microcystin-LR analogues based on Adda [(2S,3S,8S,9S,4E,6E)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyldecadienoic acid] or its corresponding aldol precursor linked to a polypeptide moiety have been synthesised and assessed for their binding affinity by the monoclonal antibody mAb MC159, an anti-microcystin-LR mAb recently selected by us for the detection of microcystins through various immunoassay formats. Some modifications have been brought to the enantiospecific synthesis of N-Boc-Adda developed by Pearson et al. (Org. Lett., 2000, 2, 2901) which enabled us to access in an economical and time-saving manner a small library of MC-LR linear analogues. Among which Adda was chosen to synthesise, as an illustrative example, a fluorescent probe derived from this beta-amino acid. This probe was subsequently solid-phase immobilised by means of oxime ligation in order to lead to biochips suitable for microcystin detection through the SPIT-FRI method.
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Jalce G, Franck X, Figadère B. Diastereoselective synthesis of 2,5-disubstituted tetrahydrofurans. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.10.034] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jalce G, Franck X, Figadère B. Synthesis and Use of Achiral Oxazolidine-2-thiones in Selective Preparation oftrans2,5-Disubstituted Tetrahydrofurans. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800907] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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Redon S, Leleu S, Pannecoucke X, Franck X, Outurquin F. New synthesis and cyclopropanation of α-phenylselanyl α,β-unsaturated ketones with non-stabilized phosphorus ylides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Patel J, Clavé G, Renard PY, Franck X. Straightforward Access to Protectedsyn α-Amino-β-hydroxy Acid Derivatives. Angew Chem Int Ed Engl 2008; 47:4224-7. [DOI: 10.1002/anie.200800860] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Patel J, Clavé G, Renard PY, Franck X. Straightforward Access to Protectedsyn α-Amino-β-hydroxy Acid Derivatives. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800860] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Redon S, Pannecoucke X, Franck X, Outurquin F. Synthesis and oxidative rearrangement of selenenylated dihydropyrans. Org Biomol Chem 2008; 6:1260-7. [DOI: 10.1039/b718825k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Grassi F, Guimarães Corrêa AB, Mascarenhas RE, Galvão B, Séon-Méniel B, Schmidt F, Franck X, Hocquemiller R, Figadère B, Fournet A. Quinoline compounds decrease in vitro spontaneous proliferation of peripheral blood mononuclear cells (PBMC) from human T-cell lymphotropic virus (HTLV) type-1-infected patients. Biomed Pharmacother 2007; 62:430-5. [PMID: 17587535 DOI: 10.1016/j.biopha.2007.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2007] [Accepted: 05/02/2007] [Indexed: 10/23/2022] Open
Abstract
In vitro spontaneous proliferation is the immunological hallmark of peripheral blood mononuclear cells (PBMC) from HTLV-1-infected individuals. Quinoline compounds down regulate in vitro cell proliferation of HTLV-1 transformed cell lines. In the present study we assessed the capacity of quinolines to inhibit spontaneous cell proliferation of PBMC from HTLV-1-infected individuals. Twenty-two quinolines were evaluated. Toxicity was first assessed on PBMC from healthy donors by using both the Trypan blue technique and Tetrazolium Salt (XTT) method and then the antiproliferative effect was measured by a classic lymphoproliferative assay on PBMC from three HTLV-1-infected individuals, in the presence of decreasing concentrations of quinolines (from 100microM to 0.8microM), after 5 days of culture. We found that 14 out of 22 compounds were non-toxic to PBMC from uninfected individuals at 100, 50 and 10microM. Four compounds presented a capacity to inhibit more than 80% of the spontaneous proliferation: 7 at 25microM and 10, 20 and 23 at 100microM. Our results indicate that some quinolines block spontaneous proliferation of PBMC from HTLV-1-infected individuals.
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Franck X, Langlois E, Outurquin F. Diastereoselective Aldolization with N-Phenylselanylacetyl Derivatives. SYNTHESIS-STUTTGART 2007. [DOI: 10.1055/s-2007-965894] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Nakayama H, Desrivot J, Bories C, Franck X, Figadère B, Hocquemiller R, Fournet A, Loiseau PM. In vitro and in vivo antileishmanial efficacy of a new nitrilquinoline against Leishmania donovani. Biomed Pharmacother 2007; 61:186-8. [PMID: 17360145 DOI: 10.1016/j.biopha.2007.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2006] [Revised: 07/07/2006] [Indexed: 11/26/2022] Open
Abstract
The in vitro activity of a new analogue of 2-alkenylquinoline (2-nitrilquinoline or NQ) against Leishmania donovani was compared to oral reference drug miltefosine (HePC). IC(50) of NQ was found at 38.6 microM against promastigotes and 2.4 microM against intramacrophage amastigotes. In vivo evaluation in the L. donovani Balb/c mice model indicated that oral treatments at 12.5 and 25 mg/kg for 10 consecutive days significantly reduced the parasite burden in the liver by 68.9 and 68.5%, respectively. This activity was similar to those of HePC at 7.5 mg/kg for 10 days which reduced the parasite burden in liver by 72.5%. The present study shows the positive contribution of a nitril substitute being added into the alkenyl chain branched at the 2-position of the quinoline ring to the antileishmanial activity. In addition, any apparent toxicological disorder was observed during the experiments.
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Figadère B, Hui X, Schmidt F, Akram Fakhfakh M, Franck X. Novel Highly Regioselective Syntheses of Unsymmetrical 2,3-Disubstituted Quinoxalines. HETEROCYCLES 2007. [DOI: 10.3987/com-06-s(k)19] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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Franck X, Seon-Meniel B, Figadère B. Highly Diastereoselective Aldol Reaction with α-CF3-Substituted Enolates. Angew Chem Int Ed Engl 2006; 45:5174-6. [PMID: 16823794 DOI: 10.1002/anie.200600927] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Franck X, Seon-Meniel B, Figadère B. Highly Diastereoselective Aldol Reaction with α-CF3-Substituted Enolates. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600927] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Luna JDS, De Carvalho JM, De Lima MRF, Bieber LW, Bento EDS, Franck X, Sant'ana AEG. Acetogenins in Annona muricata L. (annonaceae) leaves are potent molluscicides. Nat Prod Res 2006; 20:253-7. [PMID: 16401556 DOI: 10.1080/14786410500161445] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
An ethanolic extract of the leaves of Annona muricata was shown to be toxic to adult forms of the snail Biomphalaria glabrata (LC50 9.32 microg mL(-1)) and to larvae of the brine shrimp Artemia salina (LC50 0.49 microg mL(-1)). Activity-guided fractionation of the extract gave rise to a sample with high molluscicidal activity that contained the acetogenins, annonacin (90%), isoannonacin (6%) and goniothalamicin (4%).
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Seck M, Franck X, Seon-Meniel B, Hocquemiller R, Figadère B. A Baylis–Hillman approach to the synthesis of C1–C11 fragment of caribenolide I. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.04.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Seck M, Seon-Meniel B, Jullian JC, Franck X, Hocquemiller R, Figadere B. Synthesis of C1-C6 Fragment of Caribenolide I. LETT ORG CHEM 2006. [DOI: 10.2174/157017806776611818] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Nakayama H, Loiseau PM, Bories C, Torres de Ortiz S, Schinini A, Serna E, Rojas de Arias A, Fakhfakh MA, Franck X, Figadère B, Hocquemiller R, Fournet A. Efficacy of orally administered 2-substituted quinolines in experimental murine cutaneous and visceral leishmaniases. Antimicrob Agents Chemother 2006; 49:4950-6. [PMID: 16304157 PMCID: PMC1315925 DOI: 10.1128/aac.49.12.4950-4956.2005] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
We report in this study the in vivo efficacy of nine 2-substituted quinolines on the Leishmania amazonensis cutaneous infection murine model and on the Leishmania infantum and Leishmania donovani visceral infection murine models. In the case of the L. amazonensis model, quinolines were administered orally at 25 mg/kg twice daily for 15 days. Quinolines 1, 2, 3, and 7 reduced by 80 to 90% the parasite burdens in the lesion, whereas N-methylglucamine antimoniate (Glucantime), administered by subcutaneous injections at 100 mg [28 mg Sb(V)] per kg of body weight daily, reduced the parasite burdens by 98%. In visceral leishmaniasis due to L. infantum, mice treated orally at 25 mg/kg daily for 10 days with quinolines 1, 4, 5, and 6 showed a significant reduction of parasite burdens in the liver and spleen. These quinolines were significantly more effective than meglumine antimoniate to reduce the parasite burden in both the liver and spleen. Also, the oral in vivo activity of three quinolines (quinolines 4, 5, and 2-n-propylquinoline) were determined against L. donovani (LV 9) at 12.5 and 25 mg/kg for 10 days. Their activity was compared with that of miltefosine at 7.5 mg/kg. Miltefosine, 2-n-propylquinoline, and quinoline 5 at 12.5 mg/kg significantly reduced the parasite burdens in the liver by 72, 66, and 61%, respectively. From the present study, quinoline 5 is the most promising compound against both cutaneous and visceral leishmaniasis. The double antileishmanial and antiviral activities of these compounds suggest that this series could be a potential treatment for coinfection of Leishmania-human immunodeficiency virus.
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Seck M, Desrivot J, Bories C, Loiseau P, Franck X, Hocquemiller R, Figadere B, Peyrat JF, Provot O, Brion JD, Alami M. [Antileishmanial activity of five 2- or 3- quinolines by enyne group]. DAKAR MEDICAL 2006; 51:1-4. [PMID: 16924841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
INTRODUCTION Leishmaniasis is an emergent orphan disease because of its co-infection with HIV AIDS. We report herein the in vitro biological evalution of five news quinolines, 2- or 3- substituted by an enyne group against Leishmania donovani (MHOM/ET/L82/LV9). PATIENTS AND METHODS The quinolines has been synthesized by using a cross-coupling reaction between a chloroenyne and an organometallic coumpound in a presence of iron a "green" catalyst. Biological evalution is realized by a colorimetric method with the use of 3-(4,5-dimethylthiazol-2,5-diphényl)-tétrazolium bromide. RESULTS Determination of the inhibitory concentrations as well as the minimal inhibitory concentrations has shown that the substitution by an enyne group made it possible to have a more important antileishmanial activity. In addition, we have seen that the -2 or the -3 position of the enyne group had no influence in the antileishmanial activity. CONCLUSION Thus, we have shown the real interest of these quinolines which could be favourably compared with pentamidine, which is currently the reference product, and to consider the use of these quinolines in the treament of the leishmaniasis.
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Hui X, Desrivot J, Bories C, Loiseau PM, Franck X, Hocquemiller R, Figadère B. Synthesis and antiprotozoal activity of some new synthetic substituted quinoxalines. Bioorg Med Chem Lett 2005; 16:815-20. [PMID: 16309903 DOI: 10.1016/j.bmcl.2005.11.025] [Citation(s) in RCA: 148] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2005] [Revised: 11/07/2005] [Accepted: 11/07/2005] [Indexed: 11/28/2022]
Abstract
A series of 29 new quinoxalines was synthesized and evaluated in vitro against several parasites (Leishmania donovani, Trypanosoma brucei brucei, and Trichomonas vaginalis). Several of them displayed interesting activities, and particularly four quinoxaline amides showed in vitro antileishmanial properties (IC50 less than 20 microM).
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Latypov S, Fakhfakh MA, Jullian JC, Franck X, Hocquemiller R, Figadère B. Self-Associative Properties of Quinoline Derivatives in Solution. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2005. [DOI: 10.1246/bcsj.78.1296] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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48
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Martínez-Grueiro M, Giménez-Pardo C, Gómez-Barrio A, Franck X, Fournet A, Hocquemiller R, Figadère B, Casado-Escribano N. Nematocidal and trichomonacidal activities of 2-substituted quinolines. ACTA ACUST UNITED AC 2005; 60:219-24. [PMID: 15784240 DOI: 10.1016/j.farmac.2004.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Revised: 11/16/2004] [Accepted: 11/23/2004] [Indexed: 11/23/2022]
Abstract
Several quinolines were synthesized and evaluated in vitro and in vivo against the nematodes Caenorhabditis elegans, Heligmosomoides polygyrus and the protozoa Trichomonas vaginalis. If some of them have shown in vitro nematocide activity (at 10 microM), however, their trichomonacidal activity reached 50% reduction at only 100 microM. The in vivo activity on Trichinella spiralis model was evaluated for some of the most in vitro active quinolines.
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49
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Franck X, Fournet A, Prina E, Mahieux R, Hocquemiller R, Figadère B. Biological evaluation of substituted quinolines. Bioorg Med Chem Lett 2005; 14:3635-8. [PMID: 15203133 DOI: 10.1016/j.bmcl.2004.05.026] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2004] [Revised: 05/11/2004] [Accepted: 05/13/2004] [Indexed: 11/30/2022]
Abstract
Several quinolines were synthesized and evaluated in vitro against several parasites (Trypanosoma brucei, T. cruzi, Leishmania infantum, L. amazonensis, Plasmodium falciparum). Then, they were evaluated in vitro (at 10 microM), against HTLV-1 transformed cells. A few of them displayed interesting activities, comparable to the reference drugs.
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50
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Seck M, Desrivot J, Bories C, Loiseau P, Franck X, Hocquemiller R, Figadere B, Peyrat JF, Provot O, Brion JD, Alami M. [Antileishmanial activity of five 2- or 3- quinolines by enyne group]. DAKAR MEDICAL 2005; 50:172-5. [PMID: 17633005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Leishmaniasis is an emergent orphan disease because of its co-infection with HIV AIDS. We report herein the in vitro biological evalution of five news quinolines, 2- or 3-substituted by an enyne group against Leishmania donovani (MHOM/ET/L82/LV9). PATIENTS AND METHODS The quinolines has been synthesized by using a cross-coupling reaction between a chloroenyne and an organometallic coumpound in a presence of iron a "green" catalyst. Biological evalution is realized by a colorimetric method with the use of 3-(4,5-diméthylthiazol-2,5-diphényl)-tetrazolium bromide. RESULTS Determination of the inhibitory concentrations as well as the minimal inhibitory concentrations has shown that the substitution by an enyne group made it possible to have a more important antileishmanial activity. In addition, we have seen that the -2 or the -3 position of the e nyne group h ad no influence in the antileishmanial activity. CONCLUSION Thus, we have shown the real interest of these quinolines which could be favourably compared with pentamidine, which is currently the reference p roduct, and to consider the use of these quinolines in the treament of the leishmaniasis.
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