1
|
Honegr J, Malinak D, Dolezal R, Soukup O, Benkova M, Hroch L, Benek O, Janockova J, Kuca K, Prymula R. Rational design of novel TLR4 ligands by in silico screening and their functional and structural characterization in vitro. Eur J Med Chem 2018; 146:38-46. [PMID: 29407964 DOI: 10.1016/j.ejmech.2017.12.074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 12/31/2022]
Abstract
The purpose of this study was to identify new small molecules that possess activity on human toll-like receptor 4 associated with the myeloid differentiation protein 2 (hTLR4/MD2). Following current rational drug design principles, we firstly performed a ligand and structure based virtual screening of more than 130 000 compounds to discover until now unknown class of hTLR4/MD2 modulators that could be used as novel type of immunologic adjuvants. The core of the in silico study was molecular docking of flexible ligands in a partially flexible hTLR4/MD2 receptor model using a peta-flops-scale supercomputer. The most promising substances resulting from this study, related to anthracene-succimide hybrids, were synthesized and tested. The best prepared candidate exhibited 80% of Monophosphoryl Lipid A in vitro agonistic activity in cell lines expressing hTLR4/MD2.
Collapse
Affiliation(s)
- Jan Honegr
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; Department of Intensive Medicine and Forensic Science, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic
| | - David Malinak
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Rafael Dolezal
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Ondrej Soukup
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Marketa Benkova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Lukas Hroch
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Ondrej Benek
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Jana Janockova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Kamil Kuca
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Roman Prymula
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic.
| |
Collapse
|
2
|
Santiago-García JL, Pérez-Francisco JM, Loría-Bastarrachea MI, Aguilar-Vega M. Synthesis and characterization of novel polyamides containing dibenzobarrelene pendant groups. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1012624] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- José Luis Santiago-García
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43, No. 130, C.P., 97200 Mérida, Yucatán, Mexico
| | - José Manuel Pérez-Francisco
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43, No. 130, C.P., 97200 Mérida, Yucatán, Mexico
| | - María Isabel Loría-Bastarrachea
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43, No. 130, C.P., 97200 Mérida, Yucatán, Mexico
| | - Manuel Aguilar-Vega
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43, No. 130, C.P., 97200 Mérida, Yucatán, Mexico
| |
Collapse
|
3
|
Bratko I, Mallet-Ladeira S, Teuma E, Gómez M. Heteropolymetallic Complexes Linked to a 9,10-Dihydroanthracenyl Frame. Ruthenium as Active Spectator for Palladium Reactivity. Organometallics 2014. [DOI: 10.1021/om5001502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ielyzaveta Bratko
- UPS, LHFA, Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
- LHFA UMR 5069, CNRS, 31062 Toulouse Cedex 9, France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse, FR 2599, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Emmanuelle Teuma
- UPS, LHFA, Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
- LHFA UMR 5069, CNRS, 31062 Toulouse Cedex 9, France
| | - Montserrat Gómez
- UPS, LHFA, Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
- LHFA UMR 5069, CNRS, 31062 Toulouse Cedex 9, France
| |
Collapse
|
4
|
Bratko I, Guisado-Barrios G, Favier I, Mallet-Ladeira S, Teuma E, Peris E, Gómez M. Triazolium Salts as Appropriate Catalytic Scaffolds for 1,4-Additions to α,β-Unsaturated Carbonyls. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301220] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
5
|
Bratko I, Gómez M. Polymetallic complexes linked to a single-frame ligand: cooperative effects in catalysis. Dalton Trans 2013; 42:10664-81. [PMID: 23793879 DOI: 10.1039/c3dt50963j] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In an eco-friendly development, catalysis represents the key approach for converting raw materials into valuable products, particularly convenient for multi-step transformations. Mimicking Nature seems the smartest way to design poly-functional assemblies leading to the design of "synergic" catalysts. This perspective focuses on the advances in the conception of polymetallic catalysts bonded to a single ligand frame.
Collapse
Affiliation(s)
- Ielyzaveta Bratko
- Laboratoire Hétérochimie Fondamentale et Appliquée UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | | |
Collapse
|
6
|
Bratko I, Mallet-Ladeira S, Saffon N, Teuma E, Gómez M. 9,10-Dihydroanthracenyl structures: original ligands for the synthesis of polymetallic complexes through selective π-coordination. Dalton Trans 2013; 42:1136-43. [PMID: 23171922 DOI: 10.1039/c2dt32586a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Phenylsuccinimides and the corresponding pyrrolidines containing 9,10-dihydroanthracenyl skeletons were used for exploring their ability to coordinate RuCp(+) moieties through the aromatic rings. Electronic and steric tuning of ligands led to mono-, bi- and tri-metallic complexes. A full structural study was carried out in order to characterize the ruthenium organometallic compounds, proving the different coordination modes both in solution (NMR) and in solid state (X-ray diffraction). A modelling study (at DFT level) was completed with the aim to understand the selective π-coordination observed for mono- and bi-metallic complexes.
Collapse
Affiliation(s)
- Ielyzaveta Bratko
- Laboratoire Hétérochimie Fondamentale et Appliquée UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | | | | | | | | |
Collapse
|
7
|
Bratko I, Mallet-Ladeira S, Saffon N, Teuma E, Gómez M. Tris(η(5)-cyclo-penta-dien-yl)-tris-[η(6)-[9,10-dihydro-anthracene-9,10-endo-3',4'-(N-benz-yl)pyrrolidine]]triruthenium(II) tris-(hexa-fluoro-phosphate) acetone disolvate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:m1313-4. [PMID: 23125624 PMCID: PMC3470180 DOI: 10.1107/s1600536812040652] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 09/26/2012] [Indexed: 11/30/2022]
Abstract
In the title compound, [Ru3(C25H23N)(C5H5)3]·3PF6·2C3H6O], the cation is a triruthenium complex of a 9,10-dihydroanthracene derivative. Three RuCp+ (Cp is cyclopentadienyl) groups are bonded to the three aromatic rings of the ligand. Surprisingly, the pyramidalized N atom of the heterocycle (Σ C—N—C = 329.0°) points towards the anthracenyl group, so losing its coordinative ability. There is an intermolecular C—H⋯π interaction involving an acetone molecule and the adjacent benzyl ring of the ligand. In the crystal, molecules are linked via a number of C—H⋯O and C—H⋯F interactions and a C—H⋯π interaction, leading to the formation of a three-dimensional supramolecular structure. One of the Cp groups is disordered over two positions, with refined occupancies of 0.695 (14):0.305 (14). Two of the three hexafluorophospate anions are disordered, with refined occupancies of 0.630 (6):0.370 (6) and 0.771 (8):0.229 (8). One of the two solvent acetone molecules is also disordered, with refined occupancies of 0.82 (2):0.18 (2).
Collapse
Affiliation(s)
- Ielyzaveta Bratko
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | | | | | | | | |
Collapse
|
8
|
Bratko I, Ladeira S, Saffon N, Teuma E, Gómez M. (1S,8R,15S,19R)-17-Benzyl-17-aza-penta-cyclo-[6.6.5.0(2,7).0(9,14).0(15,19)]nona-deca-2(7),3,5,9(14),10,12-hexa-ene chloro-form monosolvate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2881. [PMID: 23125679 PMCID: PMC3470235 DOI: 10.1107/s1600536812037749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 09/03/2012] [Indexed: 05/26/2023]
Abstract
In the title compound, C25H23N·CHCl3, the dihydroanthracene unit is bent with a dihedral angle between the benzene rings of 57.82 (8)°. The N atom of the pyrrolidine heterocycle, which has an envelope conformation with the N atom as the flap, exhibits a pronounced pyramidalization [Σ(C—N—C) = 328.07°], indicating an accentuated N-donor character. In the crystal, this behaviour is evident by the C—H⋯N hydrogen bond involving a solvent molecule and the N atom. The absolute configuration at the C-atom fused positions of the pyrrolidine group were crystallographically confirmed to be S and R.
Collapse
Affiliation(s)
- Ielyzaveta Bratko
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | | | | | | | | |
Collapse
|
9
|
Denton JR. Simple and Efficient Purification Protocol of 9-(Trifluoroacetyl)anthracene from Anthracene. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911003668562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Justin R. Denton
- a Chemical Research and Process Development, Obiter Research , Champaign , Illinois , USA
| |
Collapse
|
10
|
Sanhes D, Raluy E, Rétory S, Saffon N, Teuma E, Gómez M. Unexpected activation of carbon–bromide bond promoted by palladium nanoparticles in Suzuki C–C couplings. Dalton Trans 2010; 39:9719-26. [PMID: 20820601 DOI: 10.1039/c0dt00201a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Delphine Sanhes
- Laboratoire Hétérochimie Fondamentale et Appliquée UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse cedex 9, France
| | | | | | | | | | | |
Collapse
|
11
|
New chiral diphosphites derived from substituted 9,10-dihydroanthracene. Applications in asymmetric catalytic processes. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.02.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
12
|
Nishio M, Umezawa Y, Honda K, Tsuboyama S, Suezawa H. CH/π hydrogen bonds in organic and organometallic chemistry. CrystEngComm 2009. [DOI: 10.1039/b902318f] [Citation(s) in RCA: 481] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|