1
|
Improved enantioselective gram scale synthesis route to N-Fmoc-protected monofluoroethylglycine. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
2
|
John-White M, Gardiner J, Johanesen P, Lyras D, Dumsday G. β-Aminopeptidases: Insight into Enzymes without a Known Natural Substrate. Appl Environ Microbiol 2019; 85:e00318-19. [PMID: 31126950 PMCID: PMC6643246 DOI: 10.1128/aem.00318-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/08/2019] [Indexed: 02/05/2023] Open
Abstract
β-Aminopeptidases have the unique capability to hydrolyze N-terminal β-amino acids, with varied preferences for the nature of β-amino acid side chains. This unique capability makes them useful as biocatalysts for synthesis of β-peptides and to kinetically resolve β-peptides and amides for the production of enantiopure β-amino acids. To date, six β-aminopeptidases have been discovered and functionally characterized, five from Gram-negative bacteria and one from a fungus, Aspergillus Here we report on the purification and characterization of an additional four β-aminopeptidases, one from a Gram-positive bacterium, Mycolicibacterium smegmatis (BapAMs), one from a yeast, Yarrowia lipolytica (BapAYlip), and two from Gram-negative bacteria isolated from activated sludge identified as Burkholderia spp. (BapABcA5 and BapABcC1). The genes encoding β-aminopeptidases were cloned, expressed in Escherichia coli, and purified. The β-aminopeptidases were produced as inactive preproteins that underwent self-cleavage to form active enzymes comprised of two different subunits. The subunits, designated α and β, appeared to be tightly associated, as the active enzyme was recovered after immobilized-metal affinity chromatography (IMAC) purification, even though only the α-subunit was 6-histidine tagged. The enzymes were shown to hydrolyze chromogenic substrates with the N-terminal l-configurations β-homo-Gly (βhGly) and β3-homo-Leu (β3hLeu) with high activities. These enzymes displayed higher activity with H-βhGly-p-nitroanilide (H-βhGly-pNA) than previously characterized enzymes from other microorganisms. These data indicate that the new β-aminopeptidases are fully functional, adding to the toolbox of enzymes that could be used to produce β-peptides. Overexpression studies in Pseudomonas aeruginosa also showed that the β-aminopeptidases may play a role in some cellular functions.IMPORTANCE β-Aminopeptidases are unique enzymes found in a diverse range of microorganisms that can utilize synthetic β-peptides as a sole carbon source. Six β-aminopeptidases have been previously characterized with preferences for different β-amino acid substrates and have demonstrated the capability to catalyze not only the degradation of synthetic β-peptides but also the synthesis of short β-peptides. Identification of other β-aminopeptidases adds to this toolbox of enzymes with differing β-amino acid substrate preferences and kinetics. These enzymes have the potential to be utilized in the sustainable manufacture of β-amino acid derivatives and β-peptides for use in biomedical and biomaterial applications. This is important, because β-amino acids and β-peptides confer increased proteolytic resistance to bioactive compounds and form novel structures as well as structures similar to α-peptides. The discovery of new enzymes will also provide insight into the biological importance of these enzymes in nature.
Collapse
Affiliation(s)
- Marietta John-White
- CSIRO Manufacturing, Clayton, Victoria, Australia
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Department of Microbiology, Monash University, Clayton, Victoria, Australia
| | | | - Priscilla Johanesen
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Department of Microbiology, Monash University, Clayton, Victoria, Australia
| | - Dena Lyras
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Department of Microbiology, Monash University, Clayton, Victoria, Australia
| | | |
Collapse
|
3
|
Zarezin DP, Nenajdenko VG. Diazocarbonyl derivatives of amino acids: unique chiral building blocks for the synthesis of biologically active compounds. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4852] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This review deals with applications of chiral α-amino diazoketones, α-amino acid derivatives, in the synthesis of various biologically active compounds. General approaches to the synthesis of chiral α-amino diazoketones, including the Arndt – Eistert reaction, acylation of trimethylsilyldiazomethanes, etc., are discussed. Due to the presence of three functional groups, these building blocks can be used to produce a wide range of organic compounds with potential physiological activity, ranging from various heterocyclic compounds to peptidomimetics. Methods for the synthesis of β-amino acid-containing peptides and depsipeptides, amino acid derivatives and heterocyclic compounds with three- to seven-membered rings are considered.
The bibliography includes 226 references.
Collapse
|
4
|
Chowdhury S, Vaishnav R, Panwar N, Haq W. Regioselective β-Csp 3-Arylation of β-Alanine: An Approach for the Exclusive Synthesis of Diverse β-Aryl-β-amino Acids. J Org Chem 2019; 84:2512-2522. [PMID: 30714366 DOI: 10.1021/acs.joc.8b02887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An approach for the synthesis of a variety of new β-aryl-β-amino acids has been developed via a palladium-catalyzed auxiliary-directed regioselective Csp3-H arylation of the unactivated β-methylene bond of β-alanine. The use of 8-aminoquinoline amide as an auxiliary efficiently directs the desired regioselective β-Csp3-H functionalization. The developed protocol enables the easy and straightforward access to several high-value β-aryl-β-amino acids useful for peptide engineering, starting from inexpensive and readily available β-alanine precursors in moderate to excellent yields.
Collapse
Affiliation(s)
- Sushobhan Chowdhury
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India
| | - Roopal Vaishnav
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India
| | - Namita Panwar
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India
| | - Wahajul Haq
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India.,Academy of Scientific and Innovative Research , New Delhi 11000 , India
| |
Collapse
|
5
|
Vishe M, Johnston JN. The inverted ketene synthon: a double umpolung approach to enantioselective β 2,3-amino amide synthesis. Chem Sci 2019; 10:1138-1143. [PMID: 30774911 PMCID: PMC6349014 DOI: 10.1039/c8sc04330b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 11/11/2018] [Indexed: 12/29/2022] Open
Abstract
A stereocontrolled synthesis of β2,3-amino amides is reported. Innovation is encapsulated by the first use of nitroalkenes to achieve double umpolung in enantioselective β-amino amide synthesis. Step economy is also fulfilled by the use of Umpolung Amide Synthesis (UmAS) in the second step, delivering the amide product without intermediacy of a carboxylic acid or activated derivative. Molybdenum oxide-mediated hydride reduction provides the anti-β2,3-amino amide with high selectivity.
Collapse
Affiliation(s)
- Mahesh Vishe
- Department of Chemistry , Vanderbilt Institute of Chemical Biology Vanderbilt University , Nashville , Tennessee 37235 , USA .
| | - Jeffrey N Johnston
- Department of Chemistry , Vanderbilt Institute of Chemical Biology Vanderbilt University , Nashville , Tennessee 37235 , USA .
| |
Collapse
|
6
|
Le Foll Devaux A, Deau E, Corrot E, Bischoff L, Levacher V, Brière JF. A Meldrum's Acid Based Multicomponent Synthesis of N
-Fmoc-isoxazolidin-5-ones: Entry to N
-Fmoc-β-amino Acids. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700472] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexandra Le Foll Devaux
- Normandie Université; INSA Rouen, Université de Rouen; CNRS; COBRA (UMR 6014); 76000 Rouen France
| | - Emmanuel Deau
- Normandie Université; INSA Rouen, Université de Rouen; CNRS; COBRA (UMR 6014); 76000 Rouen France
| | - Emilie Corrot
- Normandie Université; INSA Rouen, Université de Rouen; CNRS; COBRA (UMR 6014); 76000 Rouen France
| | - Laurent Bischoff
- Normandie Université; INSA Rouen, Université de Rouen; CNRS; COBRA (UMR 6014); 76000 Rouen France
| | - Vincent Levacher
- Normandie Université; INSA Rouen, Université de Rouen; CNRS; COBRA (UMR 6014); 76000 Rouen France
| | - Jean-François Brière
- Normandie Université; INSA Rouen, Université de Rouen; CNRS; COBRA (UMR 6014); 76000 Rouen France
| |
Collapse
|
7
|
Haugeberg BJ, Phan JH, Liu X, O'Connor TJ, Clift MD. Homologation of α-aryl amino acids through quinone-catalyzed decarboxylation/Mukaiyama-Mannich addition. Chem Commun (Camb) 2017; 53:3062-3065. [PMID: 28243665 DOI: 10.1039/c7cc00485k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for amino acid homologation by way of formal C-C bond functionalization is reported. This method utilizes a 2-step/1-pot protocol to convert α-amino acids to their corresponding N-protected β-amino esters through quinone-catalyzed oxidative decarboxylation/in situ Mukaiyama-Mannich addition. The scope and limitations of this chemistry are presented. This methodology provides an alternative to the classical Arndt-Eistert homologation for accessing β-amino acid derivatives. The resulting N-protected amine products can be easily deprotected to afford the corresponding free amines.
Collapse
Affiliation(s)
- Benjamin J Haugeberg
- Department of Chemistry, The University of Kansas, 2010 Malott Hall, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA.
| | - Johnny H Phan
- Eli Lilly and Company, 893 S. Delaware Street, DC - 1920, Indianapolis, IN 46285, USA
| | - Xinyun Liu
- Department of Chemistry, The University of Kansas, 2010 Malott Hall, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA.
| | - Thomas J O'Connor
- Department of Chemistry, University of California - Berkeley, 419 Latimer Hall, CA 94720-1460, USA
| | - Michael D Clift
- Department of Chemistry, The University of Kansas, 2010 Malott Hall, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA.
| |
Collapse
|
8
|
Jiang HT, Gao HL, Ge CS. Concise synthesis of valuable chiral N -Boc- β -benzyl- β -amino acid via construction of chiral N -Boc-3-benzyl-5-oxoisoxazolidine through cross-metathesis/conjugate addition/oxidation. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Rost U, Xu Y, Salditt T, Diederichsen U. Heavy-Atom Labeled Transmembrane β-Peptides: Synthesis, CD-Spectroscopy, and X-ray Diffraction Studies in Model Lipid Multilayer. Chemphyschem 2016; 17:2525-34. [DOI: 10.1002/cphc.201600289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Ulrike Rost
- Institute for Organic and Biomolecular Chemistry; Georg-August-University Göttingen; Tammannstr. 2 37077 Göttingen Germany
| | - Yihui Xu
- Institute for X-ray Physics; Georg-August-University Göttingen; Friedrich-Hund-Platz 1 37077 Göttingen Germany
| | - Tim Salditt
- Institute for X-ray Physics; Georg-August-University Göttingen; Friedrich-Hund-Platz 1 37077 Göttingen Germany
| | - Ulf Diederichsen
- Institute for Organic and Biomolecular Chemistry; Georg-August-University Göttingen; Tammannstr. 2 37077 Göttingen Germany
| |
Collapse
|
10
|
Rost U, Steinem C, Diederichsen U. β-Glutamine-mediated self-association of transmembrane β-peptides within lipid bilayers. Chem Sci 2016; 7:5900-5907. [PMID: 30034732 PMCID: PMC6022121 DOI: 10.1039/c6sc01147k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 05/18/2016] [Indexed: 11/21/2022] Open
Abstract
The rational design and synthesis of novel transmembrane β-peptides forming stable secondary structures in a membrane environment are described. Their state of aggregation within the membrane is controlled by hydrogen bonds.
Transmembrane β-peptide helices and their association in lipid membranes are still widely unexplored. We designed and synthesized transmembrane β-peptides harboring different numbers of d-β3-glutamine residues (hGln) by solid phase peptide synthesis. By means of circular dichroism spectroscopic measurements, the secondary structure of the β-peptides reconstituted into unilamellar vesicles was determined to be similar to a right-handed 314-helix. Fluorescence spectroscopy using d-β3-tryptophan residues strongly suggested a transmembrane orientation. Two or three hGln served as recognition units between the helices to allow helix–helix assembly driven by hydrogen bond formation. The association state of the transmembrane β-peptides as a function of the number of hGln residues was investigated by fluorescence resonance energy transfer (FRET). Therefore, two fluorescence probes (NBD, TAMRA) were covalently attached to the side chains of the transmembrane β-peptide helices. The results clearly demonstrate that only β-peptides with hGln as recognition units assemble into oligomers, presumably trimers. Temperature dependent FRET experiments further show that the strength of the helix–helix association is a function of the number of hGln residues in the helix.
Collapse
Affiliation(s)
- U Rost
- Institute of Organic and Biomolecular Chemistry , Georg-August-University Goettingen , Tammannstr. 2 , 37077 Goettingen , Germany . ;
| | - C Steinem
- Institute of Organic and Biomolecular Chemistry , Georg-August-University Goettingen , Tammannstr. 2 , 37077 Goettingen , Germany . ;
| | - U Diederichsen
- Institute of Organic and Biomolecular Chemistry , Georg-August-University Goettingen , Tammannstr. 2 , 37077 Goettingen , Germany . ;
| |
Collapse
|
11
|
Archer RM, Hutchby M, Winn CL, Fossey JS, Bull SD. A chiral ligand mediated aza-conjugate addition strategy for the enantioselective synthesis of β-amino esters that contain hydrogenolytically sensitive functionality. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
12
|
Mosca S, Dannehl C, Möginger U, Brezesinski G, Hartmann L. β(3R3)-Peptides: design and synthesis of novel peptidomimetics and their self-assembling properties at the air-water interface. Org Biomol Chem 2014; 11:5399-403. [PMID: 23860843 DOI: 10.1039/c3ob41135d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this study we present the design and synthesis of a novel class of peptidomimetics, the β(3R3)-peptides. Via alternating directions of the amide bonds along β-peptide sequences, β(3R3)-peptides can potentially extend the structural space available to β-peptidic foldamers. Detailed analysis at the air-water interface shows strand conformations and the formation of sheet assemblies with different degrees of crystallinity. Furthermore β(3R3)-peptides exhibit a high proteolytic stability thus making them an interesting new class of peptidomimetics for biomedical applications.
Collapse
Affiliation(s)
- Simone Mosca
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | | | | | | | | |
Collapse
|
13
|
Rajagopal B, Chen YY, Chen CC, Liu XY, Wang HR, Lin PC. Cu(I)-catalyzed synthesis of dihydropyrimidin-4-ones toward the preparation of β- and β3-amino acid analogues. J Org Chem 2014; 79:1254-64. [PMID: 24417351 DOI: 10.1021/jo402670d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A copper(I)-catalyzed synthesis of substituted dihydropyrimidin-4-ones from propargyl amides via the formation of ketenimine intermediate has been successfully developed; the synthesis afforded good isolated yields (80-95%). The mild reaction conditions at room temperature allow the reaction to proceed to completion in a few hours without altering the stereochemistry. Further, by involving a variety of reactive nucleophiles, the obtained substituted dihydropyrimidin-4-ones were elegantly transformed into the corresponding β- and β(3)-amino acid analogues.
Collapse
Affiliation(s)
- Basker Rajagopal
- Department of Chemistry, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | | | | | | | | | | |
Collapse
|
14
|
Imamura Y, Umezawa N, Osawa S, Shimada N, Higo T, Yokoshima S, Fukuyama T, Iwatsubo T, Kato N, Tomita T, Higuchi T. Effect of Helical Conformation and Side Chain Structure on γ-Secretase Inhibition by β-Peptide Foldamers: Insight into Substrate Recognition. J Med Chem 2013; 56:1443-54. [DOI: 10.1021/jm301306c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuki Imamura
- Department of Bioorganic-Inorganic
Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku,
Nagoya, Aichi, Japan
| | - Naoki Umezawa
- Department of Bioorganic-Inorganic
Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku,
Nagoya, Aichi, Japan
| | - Satoko Osawa
- Department
of Neuropathology
and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
| | - Naoaki Shimada
- Department of Synthetic
Natural
Products Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
| | - Takuya Higo
- Department of Synthetic
Natural
Products Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
| | - Satoshi Yokoshima
- Department of Synthetic
Natural
Products Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
| | - Tohru Fukuyama
- Department of Synthetic
Natural
Products Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
| | - Takeshi Iwatsubo
- Department
of Neuropathology
and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Tokyo, Japan
- Department of Neuropathology,
Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Nobuki Kato
- Department of Bioorganic-Inorganic
Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku,
Nagoya, Aichi, Japan
| | - Taisuke Tomita
- Department
of Neuropathology
and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo,
Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Tokyo, Japan
| | - Tsunehiko Higuchi
- Department of Bioorganic-Inorganic
Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku,
Nagoya, Aichi, Japan
| |
Collapse
|
15
|
van der Knaap M, Basalan F, van de Mei HC, Busscher HJ, van der Marel GA, Overkleeft HS, Overhand M. Synthesis and Biological Evaluation of Gramicidin S-Inspired Cyclic Mixedα/β-Peptides. Chem Biodivers 2012; 9:2494-506. [DOI: 10.1002/cbdv.201200277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Indexed: 11/06/2022]
|
16
|
Siciliano C, De Marco R, Guidi LE, Spinella M, Liguori A. A One-Pot Procedure for the Preparation of N-9-Fluorenylmethyloxycarbonyl-α-amino Diazoketones from α-Amino Acids. J Org Chem 2012; 77:10575-82. [DOI: 10.1021/jo301657e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carlo Siciliano
- Dipartimento di Scienze Farmaceutiche,
Edificio Polifunzionale, Università della Calabria, I-87030 Arcavacata
di Rende, Cosenza, Italy
| | - Rosaria De Marco
- Dipartimento di Scienze Farmaceutiche,
Edificio Polifunzionale, Università della Calabria, I-87030 Arcavacata
di Rende, Cosenza, Italy
| | - Ludovica Evelin Guidi
- Dipartimento di Scienze Farmaceutiche,
Edificio Polifunzionale, Università della Calabria, I-87030 Arcavacata
di Rende, Cosenza, Italy
| | - Mariagiovanna Spinella
- Dipartimento di Scienze Farmaceutiche,
Edificio Polifunzionale, Università della Calabria, I-87030 Arcavacata
di Rende, Cosenza, Italy
| | - Angelo Liguori
- Dipartimento di Scienze Farmaceutiche,
Edificio Polifunzionale, Università della Calabria, I-87030 Arcavacata
di Rende, Cosenza, Italy
| |
Collapse
|
17
|
Sharma GVM, Reddy NY, Ravi R, Sreenivas B, Sridhar G, Chatterjee D, Kunwar AC, Hofmann HJ. Synthesis of C-linked carbo-β2-amino acids and β2-peptides: design of new motifs for left-handed 12/10- and 10/12-mixed helices. Org Biomol Chem 2012; 10:9191-203. [DOI: 10.1039/c2ob26615f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
18
|
WAKABAYASHI R, HARUYAMA T. Suppressive Method for Unspecific Adsorption on a Semiconductor Electrode in the Specific Molecular Immobilization Process Using EC tag Method. ELECTROCHEMISTRY 2012. [DOI: 10.5796/electrochemistry.80.302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
19
|
Fremaux J, Fischer L, Arbogast T, Kauffmann B, Guichard G. Condensation Approach to Aliphatic Oligourea Foldamers: Helices with N-(Pyrrolidin-2-ylmethyl)ureido Junctions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105416] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Fremaux J, Fischer L, Arbogast T, Kauffmann B, Guichard G. Condensation Approach to Aliphatic Oligourea Foldamers: Helices with N-(Pyrrolidin-2-ylmethyl)ureido Junctions. Angew Chem Int Ed Engl 2011; 50:11382-5. [DOI: 10.1002/anie.201105416] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Indexed: 11/12/2022]
|
21
|
Pan X, Yu W, Ou W, Tao X, Wan J, Liu F. Synthesis of a Chiral β-Amino Acid Derivative by a Cobalt-Catalysed Coupling Reaction. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13155906432537] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A chiral β-amino acid derivative was synthesised by a cobalt-catalysed alkylation of 2,4,5-trifluorophenyl magnesium bromide with the alkyl halide derivative of L-aspartic acid, using an efficient catalytic reagent: CoCl2/TMEDA. The halide derivative was synthesised from protected L-aspartic acid β-methyl ester and the Grignard reagent was made by bromine- magnesium exchange. The stereo-structure was well preserved from L-aspartic acid.
Collapse
Affiliation(s)
- Xianhua Pan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Wansheng Yu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Wenhua Ou
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Xiaohu Tao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Jiaomei Wan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Feng Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| |
Collapse
|
22
|
Coursindel T, Martinez J, Parrot I. Concise Pathway to New Multifunctionalized Constrained Pentacin Derivatives by Means of Two Stereospecific Tandem Reactions. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100593] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
23
|
Zhang W, Ding N, Li Y. Synthesis and biological evaluation of analogues of the marine cyclic depsipeptide obyanamide. J Pept Sci 2011; 17:533-9. [PMID: 21495118 DOI: 10.1002/psc.1361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 01/17/2011] [Accepted: 01/18/2011] [Indexed: 11/10/2022]
Abstract
On the basis of the total synthesis of obyanamide, 20 analogues of this marine cyclic depsipeptide have been synthesized by (i) preparation of the tripeptide fragments in the western hemisphere using Z/OtBu protocol; (ii) preparation of the dipeptide fragments in the eastern hemisphere using Boc/OMe protocol; and (iii) fragments coupling, removal of protecting groups (Boc and OtBu, in one pot), and macrocyclizaion in the last step. The cytotoxic test showed that three synthetic compounds exhibited moderate activities against HL-60, KB, LOVO, and A549 cell lines. According to the results, the β-amino acid residue was found to play a critical role in the biological activities. Additionally, the ester bond along with the Ala(Thz) moiety was also essential for biological activities. However, it seems too early to draw a conclusion that the N-methylation of Val/Phe can lead to higher or lower cytotoxic activities.
Collapse
Affiliation(s)
- Wei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | | | | |
Collapse
|
24
|
Baptiste B, Douat-Casassus C, Laxmi-Reddy K, Godde F, Huc I. Solid Phase Synthesis of Aromatic Oligoamides: Application to Helical Water-Soluble Foldamers. J Org Chem 2010; 75:7175-85. [DOI: 10.1021/jo101360h] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benoît Baptiste
- Université de Bordeaux, EA 4138-Pharmacochimie, 146 rue Léo Saignat, 33076 Bordeaux Cedex, France
| | - Céline Douat-Casassus
- Institut Européen de Chimie et Biologie, Université de Bordeaux-CNRS UMR 5248, 2 rue Robert Escarpit, 33607 Pessac Cedex, France
| | - Katta Laxmi-Reddy
- Institut Européen de Chimie et Biologie, Université de Bordeaux-CNRS UMR 5248, 2 rue Robert Escarpit, 33607 Pessac Cedex, France
| | - Frédéric Godde
- Institut Européen de Chimie et Biologie, Université de Bordeaux-CNRS UMR 5248, 2 rue Robert Escarpit, 33607 Pessac Cedex, France
| | - Ivan Huc
- Institut Européen de Chimie et Biologie, Université de Bordeaux-CNRS UMR 5248, 2 rue Robert Escarpit, 33607 Pessac Cedex, France
| |
Collapse
|
25
|
Liu F, Yu W, Ou W, Xu X, Ruan L, Wang X, Li Y, Peng X, Tao X, Mao J, Wan J, Pan X. The Synthesis of a Chiral β-Amino Acid Derivative by the Grignard Reaction of an Aspartic Acid Equivalent. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12843925746143] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel synthetic route to chiral β-amino acid derivative has been developed by a Grignard reaction of 2,4,5-trifluo-rophenyl magnesium bromide with the Weinreb amide derivative of L-aspartic acid. The aspartic equivalent was synthesised from L-aspartic acid in four steps, and the Grignard reagent was prepared by Br–Mg-exchange reaction. The target compound was achieved after the Grignard reaction and a subsequent reduction. Tthe stereo structure of the chiral amine was well preserved from the L-aspartic acid.
Collapse
Affiliation(s)
- Feng Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Wansheng Yu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Wenhua Ou
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Xiaojiong Xu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Libo Ruan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Xiaoke Wang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Yiming Li
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Xijiang Peng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Xiaohu Tao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Jun Mao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Jiaomei Wan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| | - Xianhua Pan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 120 Caobao Rd. Shanghai 200235, P. R. China
| |
Collapse
|
26
|
Butler JD, Coffman KC, Ziebart KT, Toney MD, Kurth MJ. Orthogonally Protected Thiazole and Isoxazole Diamino Acids: An Efficient Synthetic Route. Chemistry 2010; 16:9002-5. [DOI: 10.1002/chem.201001492] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jeffrey D Butler
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | | | | | | | | |
Collapse
|
27
|
Yu S, Ishida H, Juarez-Garcia ME, Bode JW. Unified synthesis of enantiopure β2h, β3h and β2,3-amino acids. Chem Sci 2010. [DOI: 10.1039/c0sc00317d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
28
|
Wilczyńska D, Kosson P, Kwasiborska M, Ejchart A, Olma A. Synthesis and receptor binding of opioid peptide analogues containing beta3-homo-amino acids. J Pept Sci 2009; 15:777-82. [PMID: 19787815 DOI: 10.1002/psc.1175] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
beta-Amino acids containing hybrid peptides and beta-peptides show great potential as peptidomimetics. In this paper we describe the synthesis and affinity toward the micro- and delta-opioid receptors of beta-peptides, analogues of Leu-enkephalin, deltorphin I, dermorphin and alpha,beta-hybrides, analogues of deltorphin I. Substitution of alpha-amino acid residues with beta(3)-homo-amino acid residues, in general resulted in decrease of affinity to opioid receptors. However, the incorporation beta(3)h-D-Ala in position 2 or beta(3)hPhe in position 3 of deltorphin I resulted in potent and selective ligand for delta-opioid receptor. The NMR studies of beta-deltorphin I analogue suggest that conformational motions in the central part of the peptide backbone are partially restricted and some conformational preferences can be expected.
Collapse
Affiliation(s)
- Dominika Wilczyńska
- Institute of Organic Chemistry, Technical University of Łódź, Zeromskiego 116, 90-924 Łódź, Poland
| | | | | | | | | |
Collapse
|
29
|
Stereocontrolled and Versatile Total Synthesis of Bispyrrolidinoindoline Diketopiperazine Alkaloids: Structural Revision of the Fungal Isolate (+)-Asperdimin. Chemistry 2009; 15:9928-37. [DOI: 10.1002/chem.200901056] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
30
|
Hintersteiner M, Kimmerlin T, Garavel G, Schindler T, Bauer R, Meisner NC, Seifert JM, Uhl V, Auer M. A highly potent and cellularly active beta-peptidic inhibitor of the p53/hDM2 interaction. Chembiochem 2009; 10:994-8. [PMID: 19267375 DOI: 10.1002/cbic.200800803] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
New and improved: The incorporation of a 6-chlorotryptophan (6-Cl-Trp) into a beta-peptide (M)-3(14) helix leads to a high-affinity hDM2 inhibitor, as demonstrated by fluorescence fluctuation analysis at single molecule resolution. When conjugated to penetratin, the newly derived hDM2 binder specifically inhibits tumour cell growth in vitro.
Collapse
|
31
|
Saavedra C, Hernández R, Boto A, Álvarez E. Catalytic, One-Pot Synthesis of β-Amino Acids from α-Amino Acids. Preparation of α,β-Peptide Derivatives. J Org Chem 2009; 74:4655-65. [DOI: 10.1021/jo9004487] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Carlos Saavedra
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain, and Instituto de Investigaciones Químicas (CSIC-USe), Isla de la Cartuja, Avda. Américo Vespucio 49, 41092-Sevilla, Spain
| | - Rosendo Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain, and Instituto de Investigaciones Químicas (CSIC-USe), Isla de la Cartuja, Avda. Américo Vespucio 49, 41092-Sevilla, Spain
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain, and Instituto de Investigaciones Químicas (CSIC-USe), Isla de la Cartuja, Avda. Américo Vespucio 49, 41092-Sevilla, Spain
| | - Eleuterio Álvarez
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain, and Instituto de Investigaciones Químicas (CSIC-USe), Isla de la Cartuja, Avda. Américo Vespucio 49, 41092-Sevilla, Spain
| |
Collapse
|
32
|
Reyes-Rangel G, Jiménez-González E, Olivares-Romero JL, Juaristi E. Enantioselective synthesis of beta-amino acids using hexahydrobenzoxazolidinones as chiral auxiliaries. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
33
|
Norgren AS, Arvidsson PI. Design and Synthesis of Glycosylated β3-Peptides Capable of Folding into the 314-Helical Conformation in Water. J Org Chem 2008; 73:5272-8. [DOI: 10.1021/jo8003265] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anna S. Norgren
- Department of Biochemistry and Organic Chemistry, Uppsala University, Box 576, S-75123 Uppsala, Sweden, and Medicinal Chemistry, Discovery CNS & Pain Control, AstraZeneca R&D, Södertälje S-15185, Sweden
| | - Per I. Arvidsson
- Department of Biochemistry and Organic Chemistry, Uppsala University, Box 576, S-75123 Uppsala, Sweden, and Medicinal Chemistry, Discovery CNS & Pain Control, AstraZeneca R&D, Södertälje S-15185, Sweden
| |
Collapse
|
34
|
Byrne C, Church T, Kramer J, Coates G. Catalytic Synthesis of β3-Amino Acid Derivatives from α-Amino Acids. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200705310] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
35
|
Byrne C, Church T, Kramer J, Coates G. Catalytic Synthesis of β3-Amino Acid Derivatives from α-Amino Acids. Angew Chem Int Ed Engl 2008; 47:3979-83. [DOI: 10.1002/anie.200705310] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
36
|
Synthesis of a beta-tetrapeptide analog as a mother compound for the development of matrix metalloproteinase-2-imaging agents. Chem Pharm Bull (Tokyo) 2008; 56:260-5. [PMID: 18310933 DOI: 10.1248/cpb.56.260] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Matrix metalloproteinase-2 (MMP-2) is an attractive target for the diagnosis of cancer and atherosclerosis in nuclear imaging. A cyclic decapeptide, cCTTHWGFTLC (cCTT), has been used as the mother compound for the development of MMP-2-imaging agents with high potency and selectivity. Most of radiolabeled derivatives of cCTT currently developed for in vivo studies of MMP-2, however, suffer from low accumulation in the target tissues, such as tumors. For enhanced in vivo stability and tissue penetration, we designed a linear beta-tetrapeptide analog, H-beta 3-Phe-beta-Ala-beta 3-Trp-beta 3-His-OH (1), to mimic cCTT. The component beta-amino acids were prepared by reduction of N-protected alpha-amino acid methyl esters to the alcohols, followed by conversion into the cyanides, and subsequent hydrolysis. Compound 1 was obtained from these beta-amino acids by the conventional solution method. In MMP-2 inhibition assay, compound 1 displayed desirably significant inhibition, which was comparable to cCTT. These findings suggest that compound 1 may serve as a mother compound in the design and development of in vivo MMP-2-imaging agents.
Collapse
|
37
|
Tessier A, Lahmar N, Pytkowicz J, Brigaud T. Highly Diastereoselective Synthetic Route to Enantiopure β2-Amino Acids and γ-Amino Alcohols Using a Fluorinated Oxazolidine (Fox) as Chiral Auxiliary. J Org Chem 2008; 73:3970-3. [DOI: 10.1021/jo800562x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arnaud Tessier
- Laboratoire “Synthèse Organique Sélective et Chimie Organométallique” (SOSCO), UMR CNRS 8123, Université de Cergy-Pontoise, 5, Mail Gay Lussac Neuville sur Oise 95031, Cergy-Pontoise Cedex, France
| | - Nour Lahmar
- Laboratoire “Synthèse Organique Sélective et Chimie Organométallique” (SOSCO), UMR CNRS 8123, Université de Cergy-Pontoise, 5, Mail Gay Lussac Neuville sur Oise 95031, Cergy-Pontoise Cedex, France
| | - Julien Pytkowicz
- Laboratoire “Synthèse Organique Sélective et Chimie Organométallique” (SOSCO), UMR CNRS 8123, Université de Cergy-Pontoise, 5, Mail Gay Lussac Neuville sur Oise 95031, Cergy-Pontoise Cedex, France
| | - Thierry Brigaud
- Laboratoire “Synthèse Organique Sélective et Chimie Organométallique” (SOSCO), UMR CNRS 8123, Université de Cergy-Pontoise, 5, Mail Gay Lussac Neuville sur Oise 95031, Cergy-Pontoise Cedex, France
| |
Collapse
|
38
|
Dutot L, Gaucher A, Elkassimi K, Drapeau J, Wakselman M, Mazaleyrat JP, Peggion C, Formaggio F, Toniolo C. Synthesis and Characterisation of Helical β-Peptide Architectures that Contain (S)-β3-HDOPA(Crown Ether) Derivatives. Chemistry 2008; 14:3154-63. [DOI: 10.1002/chem.200701360] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
39
|
Murray JK, Sadowsky JD, Scalf M, Smith LM, Tomita Y, Gellman SH. Exploration of Structure−Activity Relationships among Foldamer Ligands for a Specific Protein Binding Site via Parallel and Split-and-Mix Library Synthesis. ACTA ACUST UNITED AC 2008; 10:204-15. [DOI: 10.1021/cc700153z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin K. Murray
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20057
| | - Jack D. Sadowsky
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20057
| | - Mark Scalf
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20057
| | - Lloyd M. Smith
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20057
| | - York Tomita
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20057
| | - Samuel H. Gellman
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20057
| |
Collapse
|
40
|
Mathad R, Jaun B, Flögel O, Gardiner J, Löweneck M, Codée J, Seeberger P, Seebach D, Edmonds M, Graichen F, Abell A. NMR-Solution Structures of Fluoro-Substitutedβ-Peptides: A314-Helix and a Hairpin Turn. The First Case of a 90° OCCF Dihedral Angle in anα-Fluoro-Amide Group. Helv Chim Acta 2007. [DOI: 10.1002/hlca.200790235] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
41
|
Bautista AD, Craig CJ, Harker EA, Schepartz A. Sophistication of foldamer form and function in vitro and in vivo. Curr Opin Chem Biol 2007; 11:685-92. [PMID: 17988934 DOI: 10.1016/j.cbpa.2007.09.009] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Accepted: 09/26/2007] [Indexed: 01/24/2023]
Abstract
Advances in the foldamer field in recent years are as diverse as the backbones of which they are composed. Applications have ranged from cellular penetration and membrane disruption to discrete molecular recognition, while efforts to control the complex geometric shape of foldamers has entered the realm of tertiary and quaternary structure. This review will provide recent examples of progress in the foldamer field, highlighting the significance of this class of compounds and the advances that have been made towards exploiting their full potential.
Collapse
Affiliation(s)
- Arjel D Bautista
- Department of Chemistry, Yale University, New Haven, CT 06520, USA
| | | | | | | |
Collapse
|
42
|
Chi Y, Gellman SH. Enantioselective organocatalytic aminomethylation of aldehydes: a role for ionic interactions and efficient access to beta2-amino acids. J Am Chem Soc 2007; 128:6804-5. [PMID: 16719457 PMCID: PMC2715144 DOI: 10.1021/ja061731n] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organocatalytic Mannich addition of aldehydes to a formaldehyde-derived iminium species catalyzed by proline-derived chiral pyrrolidines provides beta-amino aldehydes with >/=90% ee. Mechanistic analysis of the proline-catalyzed reactions suggests that non-hydrogen-bonded ionic interactions at the Mannich reaction transition state can influence stereochemical outcome. The beta-amino aldehydes from our process bear a substituent adjacent to the carbonyl and can be efficiently converted to protected beta2-amino acids, which are important building blocks for beta-peptide foldamers that display useful biological activities.
Collapse
|
43
|
Abstract
The application of microwave irradiation to solid-phase peptide synthesis increases product purity and reduces reaction time. Parallel synthesis in 96-well polypropylene filter plates with microwave irradiation is an efficient method for the rapid generation of combinatorial peptide libraries in sufficient purity to assay the products directly for biological activity without HPLC purification. In this protocol, the solid-phase support is arrayed into each well of a 96-well plate, reagents are delivered using a multichannel pipette and a microwave reactor is used to complete peptide coupling reactions in 6 min and Fmoc-removal reactions in 4 min under temperature-controlled conditions. The microwave-assisted parallel peptide synthesis protocol has been used to generate a library of difficult hexa-beta-peptides in 61% average initial purity (50% yield) and has been applied to the preparation of longer alpha- and beta-peptides. Using this protocol, a library of 96 different hexapeptides can be synthesized in 24 h (excluding characterization).
Collapse
Affiliation(s)
- Justin K Murray
- Peptide Research and Discovery, Amgen, One Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | | |
Collapse
|
44
|
Sadowsky JD, Murray JK, Tomita Y, Gellman SH. Exploration of Backbone Space in Foldamers Containing α- and β-Amino Acid Residues: Developing Protease-Resistant Oligomers that Bind Tightly to the BH3-Recognition Cleft of Bcl-xL. Chembiochem 2007; 8:903-16. [PMID: 17503422 DOI: 10.1002/cbic.200600546] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Protein-protein interactions play crucial roles in cell-signaling events and are often implicated in human disease. Molecules that bind tightly to functional protein-surface sites and show high stability to degradative enzymes could be valuable pharmacological tools for dissection of cell-signaling networks and might ultimately lead to therapeutic agents. We recently described oligomers containing both alpha- and beta-amino acid residues that bind tightly to the BH3 recognition site of the anti-apoptotic protein Bcl-x(L). The oligomers with highest affinity had a nine-residue N-terminal segment with a 1:1 alpha:beta residue repeat and a six-residue C-terminal segment containing exclusively proteinogenic alpha-residues. The N-terminal portions of such (alpha/beta+alpha)-peptides are highly resistant to proteolysis, but the C-terminal alpha-segments are susceptible. This study emerged from efforts to modify the alpha-segment in an (alpha/beta+alpha)-peptide in a way that would diminish proteolytic degradation but retain high affinity for Bcl-x(L). Some of the oligomers reported here could prove useful in certain biological applications, particularly those for which extended incubation in a biological milieu is required.
Collapse
Affiliation(s)
- Jack D Sadowsky
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | | | | |
Collapse
|
45
|
Heck T, Limbach M, Geueke B, Zacharias M, Gardiner J, Kohler HPE, Seebach D. Enzymatic degradation of beta- and mixed alpha,beta-oligopeptides. Chem Biodivers 2007; 3:1325-48. [PMID: 17193247 DOI: 10.1002/cbdv.200690136] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
One of the main and most astonishing characteristics of peptides comprised of beta-amino acids with proteinogenic side chains is their extraordinarily high stability towards enzymatic degradation. So far, only certain microbial enzymes have been shown to cleave N-terminal beta(3)-homoamino acid residues from peptides. In this work, the L-aminopeptidase-D-amidase/esterase (DmpA) from Ochrobactrum anthropi LMG7991 is compared to two closely related beta-peptidyl aminopeptidases (BapA), which originate from Sphingosinicella strains, and to microsomal leucine aminopeptidase (LAP) as a reference. All four enzymes are aminopeptidases cleaving N-terminal amino acids from small peptides. Degradation experiments reveal that DmpA and both BapA enzymes exhibit unique, but clearly distinct substrate specificities and preferences. DmpA also cleaves beta- and mixed alpha,beta-peptides and amides, but a short side chain of the N-terminal beta-amino acid residue seems to be a prerequisite, since only peptides carrying N-terminal betahGly and beta(3)hAla are hydrolyzed with good efficiencies. Both beta-peptidyl aminopeptidases cleave beta-amino acids from a variety of beta-peptides and mixed alpha,beta-peptides, but they do not accept alpha-amino acids in the N-terminal position. Astonishingly, DmpA exhibited much higher catalytical rates for the mixed dipeptide carnosine (H-betahGly-His-OH) than for any other substrate described until now.
Collapse
Affiliation(s)
- Tobias Heck
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf
| | | | | | | | | | | | | |
Collapse
|
46
|
Arvidsson PI, Ryder NS, Weiss HM, Hook DF, Escalante J, Seebach D. Exploring the antibacterial and hemolytic activity of shorter- and longer-chain beta-, alpha,beta-, and gamma-peptides, and of beta-peptides from beta2-3-aza- and beta3-2-methylidene-amino acids bearing proteinogenic side chains--a survey. Chem Biodivers 2007; 2:401-20. [PMID: 17191989 DOI: 10.1002/cbdv.200590020] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The antibacterial activities of 31 different beta-, mixed alpha/beta-, and gamma-peptides, as well as of beta-peptides derived from beta2-3-aza- and beta3-2-methylidene-amino acids were assayed against six pathogens (Enterococcus faecalis, Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa), and the results were compared with literature data. The interaction of these peptides with mammalian cells, as modeled by measuring the hemolysis of human erythrocytes, was also investigated. In addition to those peptides designed to fold into amphiphilic helical conformations with positive charges on one face of the helix, one new peptide with hemolytic activity was detected within the sample set. Moreover, it was demonstrated that neither cationic peptides used for membrane translocation (beta3-oligoarginines), nor mixed alpha/beta- or gamma-peptides with somatostatin-mimicking activities display unwanted hemolytic activity.
Collapse
Affiliation(s)
- Per I Arvidsson
- Uppsala University, Institute of Chemistry, Department of Organic Chemistry, Box 599, SE-75124 Uppsala
| | | | | | | | | | | |
Collapse
|
47
|
Norgren AS, Norberg T, Arvidsson PI. Glycosylated foldamers: synthesis of carbohydrate-modified β3hSer and incorporation into β-peptides. J Pept Sci 2007; 13:717-27. [PMID: 17890640 DOI: 10.1002/psc.832] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Fmoc-protected beta(3)hserine (beta(3)hSer) was prepared and O-linked to suitably protected N-acetylgalactosamine (GalNAc) and N-acetylglucosamine (GlcNAc) derivatives. Glycosylation of beta(3)hSer was made by two independent routes: either by direct glycosyl linkage to the beta(3)hSer, or linkage to natural L-Ser and then utilizing the carbohydrate moiety as a protecting group in an Arndt-Eistert homologation. Both procedures gave the novel glycosylated beta(3)-amino acids Fmoc-beta(3)hSer(alpha-D-GalNAc(Ac)(3))-OH (1a), its beta-anomer (1b), and Fmoc-beta(3)hSer(beta-D-GlcNAc(Ac)(3))-OH (2), which were utilized in the solid-phase peptide synthesis of four glycosylated dipeptides (3a-d) and two heptapeptides (4a-b). The preparation of beta-amino acids bearing common post-translational modifiers represents an important step towards functionalized foldamers with broad applications in biomedical research.
Collapse
Affiliation(s)
- Anna S Norgren
- Department of Biochemistry & Organic Chemistry, Uppsala University, S-75123 Uppsala, Sweden
| | | | | |
Collapse
|
48
|
Katritzky AR, Tao H, Jiang R, Suzuki K, Kirichenko K. Novel Syntheses of Chiral β- and γ-Amino Acid Derivatives Utilizing N-Protected (Aminoacyl)benzotriazoles from Aspartic and Glutamic Acids. J Org Chem 2006; 72:407-14. [PMID: 17221955 DOI: 10.1021/jo061667s] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Friedel-Crafts reactions of N-protected (alpha-aminoacyl)benzotriazoles with hetero- and benzenoid- aromatics give alpha-amino ketones that can be reduced by either triethyl silane or sodium borohydride to form the corresponding beta- and gamma-amino acid derivatives. The preservation of chirality throughout this process is confirmed by chiral HPLC results.
Collapse
Affiliation(s)
- Alan R Katritzky
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA.
| | | | | | | | | |
Collapse
|
49
|
Ahmed S, Beleid R, Sprules T, Kaur K. Solid-Phase Synthesis and CD Spectroscopic Investigations of Novel β-Peptides from l-Aspartic Acid and β-Amino-l-alanine. Org Lett 2006; 9:25-8. [PMID: 17192076 DOI: 10.1021/ol062465l] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] A solid-phase synthesis method for the preparation of novel beta3- and beta2-peptides derived from l-aspartic acid and beta-amino-l-alanine, respectively, is described. The methodology allows independent buildup of the beta-peptide backbone and the introduction of sequential side chain substitutions. Representative peptides from the two classes, an amino-substituted beta3-hexapeptide and an acyl-substituted beta2-hexapeptide, have been prepared, and their solution conformation is studied by circular dichroism (CD) spectroscopy.
Collapse
Affiliation(s)
- Sahar Ahmed
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | | | | | | |
Collapse
|
50
|
Guarracino DA, Chiang HR, Banks TN, Lear JD, Hodsdon ME, Schepartz A. Relationship between salt-bridge identity and 14-helix stability of beta3-peptides in aqueous buffer. Org Lett 2006; 8:807-10. [PMID: 16494446 DOI: 10.1021/ol0527532] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a systematic analysis of the relationship between salt bridge composition and 14-helix structure within a family of model beta-peptides in aqueous buffer. We find an inverse relationship between side-chain length and the extent of 14-helix structure as judged by CD. Introduction of a stabilizing salt bridge pair within a previously reported beta-peptide ligand for hDM2 led to changes in structure that were detectable by NMR.
Collapse
|