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Jung S, Kim J, Hong S. Visible Light-Promoted Synthesis of Spiroepoxy Chromanone Derivatives via a Tandem Oxidation/Radical Cyclization/Epoxidation Process. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701072] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sungwoo Jung
- Department of Chemistry; Korea Advanced Institute of Science and Technology; Daejeon 305-701 Korea
- Center for Catalytic Hydrocarbon Functionalization; Institute for Basic Science (IBS); Daejeon 305-701 Korea
| | - Jiyun Kim
- Department of Chemistry; Korea Advanced Institute of Science and Technology; Daejeon 305-701 Korea
- Center for Catalytic Hydrocarbon Functionalization; Institute for Basic Science (IBS); Daejeon 305-701 Korea
| | - Sungwoo Hong
- Department of Chemistry; Korea Advanced Institute of Science and Technology; Daejeon 305-701 Korea
- Center for Catalytic Hydrocarbon Functionalization; Institute for Basic Science (IBS); Daejeon 305-701 Korea
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Streubel R, Junker P, Kyri AW, Schnakenburg G. Synthesis of P-CPh 3 Substituted Spirooxaphosphirane Complexes: Steric Effects Dominate the Product Formation. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rainer Streubel
- Institut für Anorganische
Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße
1, 53121 Bonn, Germany
| | - Philip Junker
- Institut für Anorganische
Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße
1, 53121 Bonn, Germany
| | - Andreas W. Kyri
- Institut für Anorganische
Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße
1, 53121 Bonn, Germany
| | - Gregor Schnakenburg
- Institut für Anorganische
Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße
1, 53121 Bonn, Germany
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Morgen M, Jöst C, Malz M, Janowski R, Niessing D, Klein CD, Gunkel N, Miller AK. Spiroepoxytriazoles Are Fumagillin-like Irreversible Inhibitors of MetAP2 with Potent Cellular Activity. ACS Chem Biol 2016; 11:1001-11. [PMID: 26686773 DOI: 10.1021/acschembio.5b00755] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Methionine aminopeptidases (MetAPs) are responsible for the cotranslational cleavage of initiator methionines from nascent proteins. The MetAP2 subtype is up-regulated in many cancers, and selective inhibition of MetAP2 suppresses both vascularization and growth of tumors in animal models. The natural product fumagillin is a selective and potent irreversible inhibitor of MetAP2, and semisynthetic derivatives of fumagillin have shown promise in clinical studies for the treatment of cancer, and, more recently, for obesity. Further development of fumagillin derivatives has been complicated, however, by their generally poor pharmacokinetics. In an attempt to overcome these limitations, we developed an easily diversifiable synthesis of a novel class of MetAP2 inhibitors that were designed to mimic fumagillin's molecular scaffold but have improved pharmacological profiles. These substances were found to be potent and selective inhibitors of MetAP2, as demonstrated in biochemical enzymatic assays against three MetAP isoforms. Inhibitors with the same relative and absolute stereoconfiguration as fumagillin displayed significantly higher activity than their diastereomeric and enantiomeric isomers. X-ray crystallographic analysis revealed that the inhibitors covalently modify His231 in the MetAP2 active site via ring-opening of a spiroepoxide. Biochemically active substances inhibited the growth of endothelial cells and a MetAP2-sensitive cancer cell line, while closely related inactive isomers had little effect on the proliferation of either cell type. These effects correlated with altered N-terminal processing of the protein 14-3-3-γ. Finally, selected substances were found to have improved stabilities in mouse plasma and microsomes relative to the clinically investigated fumagillin derivative beloranib.
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Affiliation(s)
- Michael Morgen
- Cancer
Drug Development Group, German Cancer Research Center (DKFZ), Im Neunheimer
Feld 280, D-69120 Heidelberg, Germany
| | - Christian Jöst
- Medicinal
Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University, Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany
| | - Mona Malz
- Cancer
Drug Development Group, German Cancer Research Center (DKFZ), Im Neunheimer
Feld 280, D-69120 Heidelberg, Germany
| | - Robert Janowski
- Institute
of Structural Biology, Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), D-85764 Neuherberg, Germany
| | - Dierk Niessing
- Institute
of Structural Biology, Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), D-85764 Neuherberg, Germany
- Biomedical Center of the Ludwig-Maximilians-Universität München, D-82152 Planegg-Martinsried, Germany
| | - Christian D. Klein
- Medicinal
Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University, Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany
| | - Nikolas Gunkel
- Cancer
Drug Development Group, German Cancer Research Center (DKFZ), Im Neunheimer
Feld 280, D-69120 Heidelberg, Germany
| | - Aubry K. Miller
- Cancer
Drug Development Group, German Cancer Research Center (DKFZ), Im Neunheimer
Feld 280, D-69120 Heidelberg, Germany
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Blanchet E, Vansteelandt M, Le Bot R, Egorov M, Guitton Y, Pouchus YF, Grovel O. Synthesis and antiproliferative activity of ligerin and new fumagillin analogs against osteosarcoma. Eur J Med Chem 2014; 79:244-50. [PMID: 24742383 DOI: 10.1016/j.ejmech.2014.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 03/31/2014] [Accepted: 04/04/2014] [Indexed: 11/16/2022]
Abstract
Ligerin (1) is a natural chlorinated merosesquiterpenoid related to fumagillin (2) exhibiting a selective antiproliferative activity against osteosarcoma cell lines and an in vivo antitumor activity in a murine model. Semisynthesis of ligerin analogs was performed in order to study the effects of the C3-spiroepoxide substitution by a halogenated moiety together with the modulation of the C6 chain. Results showed that all derivatives exhibited an in vitro antiproliferative activity against osteosarcoma cell lines and that chlorohydrin compounds were equally or more active than their spiroepoxy analogs. Among semisynthetic analogs, the parent compound 1 was the best candidate for further studies since it exhibited higher or equivalent activity compared to TNP470 (3) against SaOS2 and MG63 human osteosarcoma cells with a four times weaker toxicity against HFF2 human fibroblasts. Quantitative videomicroscopy analysis was conducted and allowed a better understanding of the mechanism of its antiproliferative activity.
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Affiliation(s)
- Elodie Blanchet
- University of Nantes, Faculty of Pharmacy, MMS-EA260, Nantes F-44000, France; Atlanthera, Atlantic Bone Screen, Nantes, France
| | | | - Ronan Le Bot
- Atlanthera, Atlantic Bone Screen, Nantes, France
| | - Maxim Egorov
- Atlanthera, Atlantic Bone Screen, Nantes, France
| | - Yann Guitton
- University of Nantes, Faculty of Pharmacy, MMS-EA260, Nantes F-44000, France
| | | | - Olivier Grovel
- University of Nantes, Faculty of Pharmacy, MMS-EA260, Nantes F-44000, France.
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Batt F, Fache F. Towards the Synthesis of the 4,19-Diol Derivative of (-)-Mycothiazole: Synthesis of a Potential Key Intermediate. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100669] [Citation(s) in RCA: 17] [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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6
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Arico-Muendel CC, Benjamin DR, Caiazzo TM, Centrella PA, Contonio BD, Cook CM, Doyle EG, Hannig G, Labenski MT, Searle LL, Lind K, Morgan BA, Olson G, Paradise CL, Self C, Skinner SR, Sluboski B, Svendsen JL, Thompson CD, Westlin W, White KF. Carbamate analogues of fumagillin as potent, targeted inhibitors of methionine aminopeptidase-2. J Med Chem 2010; 52:8047-56. [PMID: 19929003 DOI: 10.1021/jm901260k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Inhibition of methionine aminopeptidase-2 (MetAP2) represents a novel approach to antiangiogenic therapy. We describe the synthesis and activity of fumagillin analogues that address the pharmacokinetic and safety liabilities of earlier candidates in this compound class. Two-step elaboration of fumagillol with amines yielded a diverse series of carbamates at C6 of the cyclohexane spiroepoxide. The most potent of these compounds exhibited subnanomolar inhibition of cell proliferation in HUVEC and BAEC assays. Although a range of functionalities were tolerated at this position, alpha-trisubstituted amines possessed markedly decreased inhibitory activity, and this could be rationalized by modeling based on the known fumagillin-MetAP2 crystal structure. The lead compound resulting from these studies, (3R,4S,5S,6R)-5-methoxy-4-((2R,3R)-2-methyl-3-(3-methylbut-2-enyl)oxiran-2-yl)-1-oxaspiro[2.5]octan-6-yl (R)-1-amino-3-methyl-1-oxobutan-2-ylcarbamate, (PPI-2458), demonstrated an improved pharmacokinetic profile relative to the earlier clinical candidate TNP-470, and has advanced into phase I clinical studies in non-Hodgkin's lymphoma and solid cancers.
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2005. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2006.11.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Spino C, Boisvert L, Douville J, Roy S, Lauzon S, Minville J, Gagnon D, Beaumier F, Chabot C. Cleavage of a chiral auxiliary using RCM on an especially sterically crowded alkene: Syntheses of chiral carbo- and heterocycles. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.07.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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