1
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McCann S, Roe WE, Agnew HE, Knipe PC. Non-Covalent Interactions Enforce Conformation in Switchable and Water-Soluble Diketopiperazine-Pyridine Foldamers. Angew Chem Int Ed Engl 2023; 62:e202307180. [PMID: 37414732 PMCID: PMC10952507 DOI: 10.1002/anie.202307180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/08/2023]
Abstract
To reach their potential as mimics of the dynamic molecules present in biological systems, foldamers must be designed to display stimulus-responsive behavior. Here we report such a foldamer architecture based on alternating pyridine-diketopiperazine linkers. Epimerization is conveniently prevented through a copper-catalyzed coupling protocol. The compounds' native unswitched conformation is first discovered in the solid and solution state. The foldamers can be solubilized in DMSO and pH 9.5 buffer, retaining conformational control to a large degree. Lastly, dynamic switching is demonstrated through treatment with acid, leading to behaviour we describe as stimulus-responsive sidechain reconfiguration.
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Affiliation(s)
- Sinead McCann
- School of Chemistry and Chemical EngineeringQueen's University BelfastDavid Keir Building, Stranmillis RoadBelfastBT9 5AGUK
| | - William E. Roe
- School of Chemistry and Chemical EngineeringQueen's University BelfastDavid Keir Building, Stranmillis RoadBelfastBT9 5AGUK
| | - Hannah E. Agnew
- School of Chemistry and Chemical EngineeringQueen's University BelfastDavid Keir Building, Stranmillis RoadBelfastBT9 5AGUK
| | - Peter C. Knipe
- School of Chemistry and Chemical EngineeringQueen's University BelfastDavid Keir Building, Stranmillis RoadBelfastBT9 5AGUK
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2
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Koshizuka M, Shinoda K, Makino K, Shimada N. Concise Synthesis of 2,5-Diketopiperazines via Catalytic Hydroxy-Directed Peptide Bond Formations. J Org Chem 2023. [PMID: 37125993 DOI: 10.1021/acs.joc.3c00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
2,5-Diketopiperazines (DKPs) with hydroxymethyl functional groups are essential structures found in many bioactive molecules and functional materials. We have established a simple protocol for the concise synthesis of this type of DKPs through diboronic acid anhydride-catalyzed hydroxy-directed peptide bond formations. The sequential reactions in this report, which consist of three steps, an intermolecular catalytic condensation reaction in which water is the only byproduct, a simple deprotection of the nitrogen-protecting group, and an intramolecular cyclization, enabled the synthesis of functionalized DKPs in high to excellent yields without any intermediate purification. The utility of this protocol has been demonstrated by synthesizing natural products, phomamide and Cyclo(Deala-l-Leu).
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Affiliation(s)
- Masayoshi Koshizuka
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kaito Shinoda
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Naoyuki Shimada
- Laboratory of Organic Chemistry for Molecular Transformations, Department of Chemistry and the Institute of Natural Sciences, Nihon University, Tokyo 156-8550, Japan
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3
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Cyclodipeptides: From Their Green Synthesis to Anti-Age Activity. Biomedicines 2022; 10:biomedicines10102342. [PMID: 36289604 PMCID: PMC9598056 DOI: 10.3390/biomedicines10102342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 12/24/2022] Open
Abstract
Cyclodipeptides (CDPs) or diketopiperazines (DKPs) are often found in nature and in foodstuff and beverages and have attracted great interest for their bioactivities, biocompatibility, and biodegradability. In the laboratory, they can be prepared by green procedures, such as microwave-assisted cyclization of linear dipeptides in water, as performed in this study. In particular, five CDPs were prepared and characterized by a variety of methods, including NMR and ESI-MS spectroscopies and single-crystal X-ray diffraction (XRD), and their cytocompatibility and anti-aging activity was tested in vitro, as well as their ability to penetrate the different layers of the skin. Although their mechanism of action remains to be elucidated, this proof-of-concept study lays the basis for their future use in anti-age cosmetic applications.
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4
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Bojarska J, Mieczkowski A, Ziora ZM, Skwarczynski M, Toth I, Shalash AO, Parang K, El-Mowafi SA, Mohammed EHM, Elnagdy S, AlKhazindar M, Wolf WM. Cyclic Dipeptides: The Biological and Structural Landscape with Special Focus on the Anti-Cancer Proline-Based Scaffold. Biomolecules 2021; 11:1515. [PMID: 34680148 PMCID: PMC8533947 DOI: 10.3390/biom11101515] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Cyclic dipeptides, also know as diketopiperazines (DKP), the simplest cyclic forms of peptides widespread in nature, are unsurpassed in their structural and bio-functional diversity. DKPs, especially those containing proline, due to their unique features such as, inter alia, extra-rigid conformation, high resistance to enzyme degradation, increased cell permeability, and expandable ability to bind a diverse of targets with better affinity, have emerged in the last years as biologically pre-validated platforms for the drug discovery. Recent advances have revealed their enormous potential in the development of next-generation theranostics, smart delivery systems, and biomaterials. Here, we present an updated review on the biological and structural profile of these appealing biomolecules, with a particular emphasis on those with anticancer properties, since cancers are the main cause of death all over the world. Additionally, we provide a consideration on supramolecular structuring and synthons, based on the proline-based DKP privileged scaffold, for inspiration in the design of compound libraries in search of ideal ligands, innovative self-assembled nanomaterials, and bio-functional architectures.
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Affiliation(s)
- Joanna Bojarska
- Faculty of Chemistry, Institute of General & Inorganic Chemistry, Technical University of Lodz, 90-924 Lodz, Poland;
| | - Adam Mieczkowski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland;
| | - Zyta M. Ziora
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.M.Z.); (I.T.)
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
| | - Istvan Toth
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.M.Z.); (I.T.)
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Ahmed O. Shalash
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (M.S.); (A.O.S.)
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Shaima A. El-Mowafi
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Eman H. M. Mohammed
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Harry and Diane Rinker Health Science Campus, School of Pharmacy, Chapman University, Irvine, CA 92618, USA; (K.P.); (S.A.E.-M.); (E.H.M.M.)
| | - Sherif Elnagdy
- Botany Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.E.); (M.A.)
| | - Maha AlKhazindar
- Botany Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.E.); (M.A.)
| | - Wojciech M. Wolf
- Faculty of Chemistry, Institute of General & Inorganic Chemistry, Technical University of Lodz, 90-924 Lodz, Poland;
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5
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Balachandra C, Padhi D, Govindaraju T. Cyclic Dipeptide: A Privileged Molecular Scaffold to Derive Structural Diversity and Functional Utility. ChemMedChem 2021; 16:2558-2587. [PMID: 33938157 DOI: 10.1002/cmdc.202100149] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Indexed: 12/11/2022]
Abstract
Cyclic dipeptides (CDPs) are the simplest form of cyclic peptides with a wide range of applications from therapeutics to biomaterials. CDP is a versatile molecular platform endowed with unique properties such as conformational rigidity, intermolecular interactions, structural diversification through chemical synthesis, bioavailability and biocompatibility. A variety of natural products with the CDP core exhibit anticancer, antifungal, antibacterial, and antiviral activities. The inherent bioactivities have inspired the development of synthetic analogues as drug candidates and drug delivery systems. CDP plays a crucial role as conformation and molecular assembly directing core in the design of molecular receptors, peptidomimetics and fabrication of functional material architectures. In recent years, CDP has rapidly become a privileged scaffold for the design of advanced drug candidates, drug delivery agents, bioimaging, and biomaterials to mitigate numerous disease conditions. This review describes the structural diversification and multifarious biomedical applications of the CDP scaffold, discusses challenges, and provides future directions for the emerging field.
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Affiliation(s)
- Chenikkayala Balachandra
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Dikshaa Padhi
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
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6
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Yin H, Takada K, Kumar A, Hirayama T, Kaneko T. Synthesis and solvent-controlled self-assembly of diketopiperazine-based polyamides from aspartame. RSC Adv 2021; 11:5938-5946. [PMID: 35423151 PMCID: PMC8694841 DOI: 10.1039/d0ra10086b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/28/2021] [Indexed: 02/02/2023] Open
Abstract
An aspartame-based AB-type diketopiperazine monomer, cyclo(l-aspartyl-4-amino-l-phenylalanyl) (ADKP), was synthesized and subsequently utilized in the polycondensation of homo-polyamides with high molecular weights. By using various amino acids, dicarboxylic acids, and diamines, random DKP-based copolymers were also synthesized. The self-assembly properties of ADKP and poly(cyclo(l-aspartyl-4-amino-l-phenylalanyl)) (PA1) were studied via the solvent displacement method. Notably, PA1 self-assembled into particles with various morphologies in different solvent systems, such as irregular networks, ellipsoids, and hollow particles. The morphological transformation was also confirmed by dropping acetone and toluene onto the PA1 particles. Furthermore, infrared spectra and Hansen solubility parameters of PA1 and different solvents revealed the particle formation mechanism, which provided more insights into the relationship between the morphology and strength of the hydrogen bonding of each solvent. Diketopiperazine-based polyamides have been synthesized from aspartame, and could self-assemble into particles with various morphologies in different solvents.![]()
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Affiliation(s)
- Hongrong Yin
- Energy and Environment Area, Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
| | - Kenji Takada
- Energy and Environment Area, Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
| | - Amit Kumar
- Energy and Environment Area, Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
| | - Thawinda Hirayama
- Department of Chemistry, Faculty of Science, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
| | - Tatsuo Kaneko
- Energy and Environment Area, Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
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7
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Panjla A, Qayoom I, Kumar A, Verma S. Anionic diketopiperazine induces osteogenic differentiation and supports osteogenesis in a 3D cryogel microenvironment. Chem Commun (Camb) 2021; 57:7422-7425. [PMID: 34231564 DOI: 10.1039/d1cc01985f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Bioactive molecules that enhance or induce osteogenic potential of bone precursor cells have shown vital roles in bone tissue engineering. Herein, we report the design and synthesis of a novel diketopiperazine (DT) that induces osteoblastic differentiation of pre-osteoblasts and bone-marrow-derived stem cells in vitro and enhances the osteogenic potential of cryogel matrix. Such functional diketopiperazines can serve as potential scaffolds for bone healing and regeneration.
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Affiliation(s)
- Apurva Panjla
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India.
| | - Irfan Qayoom
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India.
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India. and Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India and Centre for Nanosciences, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India and The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India
| | - Sandeep Verma
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India. and Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India and Centre for Nanosciences, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India
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8
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Jassem AM, Dhumad AM, Almashal FAK. Synthesis of New Drug-Like Piperazine-2,5-diones by the Ugi/Tandem Process Catalyzed by TMSOTf and Their Molecular Docking. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220110262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Cyclo(DAA-DAA) dipeptide as a peptide linker and β-sheet inducer. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Bojarska J, Remko M, Breza M, Madura I, Fruziński A, Wolf WM. A Proline-Based Tectons and Supramolecular Synthons for Drug Design 2.0: A Case Study of ACEI. Pharmaceuticals (Basel) 2020; 13:E338. [PMID: 33114370 PMCID: PMC7692516 DOI: 10.3390/ph13110338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 11/16/2022] Open
Abstract
Proline is a unique, endogenous amino acid, prevalent in proteins and essential for living organisms. It is appreciated as a tecton for the rational design of new bio-active substances. Herein, we present a short overview of the subject. We analyzed 2366 proline-derived structures deposited in the Cambridge Structure Database, with emphasis on the angiotensin-converting enzyme inhibitors. The latter are the first-line antihypertensive and cardiological drugs. Their side effects prompt a search for improved pharmaceuticals. Characterization of tectons (molecular building blocks) and the resulting supramolecular synthons (patterns of intermolecular interactions) involving proline derivatives, as presented in this study, may be useful for in silico molecular docking and macromolecular modeling studies. The DFT, Hirshfeld surface and energy framework methods gave considerable insight into the nature of close inter-contacts and supramolecular topology. Substituents of proline entity are important for the formation and cooperation of synthons. Tectonic subunits contain proline moieties characterized by diverse ionization states: -N and -COOH(-COO-), -N+ and -COOH(-COO-), -NH and -COOH(-COO-), -NH+ and -COOH(-COO-), and -NH2+ and -COOH(-COO-). Furthermore, pharmacological profiles of ACE inhibitors and their impurities were determined via an in silico approach. The above data were used to develop comprehensive classification, which may be useful in further drug design studies.
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Affiliation(s)
- Joanna Bojarska
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (A.F.); (W.M.W.)
| | - Milan Remko
- Remedika, Luzna 9, 85104 Bratislava, Slovakia;
| | - Martin Breza
- Department of Physical Chemistry, Slovak Technical University, Radlinskeho 9, SK-81237 Bratislava, Slovakia;
| | - Izabela Madura
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland;
| | - Andrzej Fruziński
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (A.F.); (W.M.W.)
| | - Wojciech M. Wolf
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland; (A.F.); (W.M.W.)
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11
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New Chlorinated 2,5-Diketopiperazines from Marine-Derived Bacteria Isolated from Sediments of the Eastern Mediterranean Sea. Molecules 2020; 25:molecules25071509. [PMID: 32225050 PMCID: PMC7181205 DOI: 10.3390/molecules25071509] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 11/17/2022] Open
Abstract
From the organic extracts of five bacterial strains isolated from marine sediments collected in the East Mediterranean Sea, three new (15, 16, 31) and twenty-nine previously reported (1–14, 17–30, 32) metabolites bearing the 2,5-diketopiperazine skeleton were isolated. The structures of the chlorinated compounds 15, 16, and 31 were elucidated by extensive analysis of their spectroscopic data (NMR, MS, UV, IR). Compounds 15 and 16 were evaluated for their antifungal activity against Candida albicans and Aspergillus niger but were proven inactive. The relevant literature is supplemented with complete NMR assignments and revisions for the 29 previously reported compounds.
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12
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Han SY, Gong YD. Highly efficient enantioselective synthesis of 1,3-disubstituted 2,5-diketopiperazine derivatives via microwave irradiation. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1671983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Si Yeon Han
- Center for Innovative Drug Library Research, Department of Chemistry, College of Science, Dongguk University, Seoul, Republic of Korea
| | - Young-Dae Gong
- Center for Innovative Drug Library Research, Department of Chemistry, College of Science, Dongguk University, Seoul, Republic of Korea
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13
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Gomes NGM, Pereira RB, Andrade PB, Valentão P. Double the Chemistry, Double the Fun: Structural Diversity and Biological Activity of Marine-Derived Diketopiperazine Dimers. Mar Drugs 2019; 17:md17100551. [PMID: 31569621 PMCID: PMC6835637 DOI: 10.3390/md17100551] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/22/2019] [Accepted: 09/25/2019] [Indexed: 12/14/2022] Open
Abstract
While several marine natural products bearing the 2,5-diketopiperazine ring have been reported to date, the unique chemistry of dimeric frameworks appears to remain neglected. Frequently reported from marine-derived strains of fungi, many naturally occurring diketopiperazine dimers have been shown to display a wide spectrum of pharmacological properties, particularly within the field of cancer and antimicrobial therapy. While their structures illustrate the unmatched power of marine biosynthetic machinery, often exhibiting unsymmetrical connections with rare linkage frameworks, enhanced binding ability to a variety of pharmacologically relevant receptors has been also witnessed. The existence of a bifunctional linker to anchor two substrates, resulting in a higher concentration of pharmacophores in proximity to recognition sites of several receptors involved in human diseases, portrays this group of metabolites as privileged lead structures for advanced pre-clinical and clinical studies. Despite the structural novelty of various marine diketopiperazine dimers and their relevant bioactive properties in several models of disease, to our knowledge, this attractive subclass of compounds is reviewed here for the first time.
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Affiliation(s)
- Nelson G M Gomes
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
| | - Renato B Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, Porto 4050-313, Portugal.
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14
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Simon G, Bérubé C, Voyer N, Grenier D. Anti-biofilm and anti-adherence properties of novel cyclic dipeptides against oral pathogens. Bioorg Med Chem 2018; 27:2323-2331. [PMID: 30528685 DOI: 10.1016/j.bmc.2018.11.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/14/2018] [Accepted: 11/28/2018] [Indexed: 12/19/2022]
Abstract
Microorganisms embedded in a biofilm are significantly more resistant to antimicrobial agents and the defences of the human immune system, than their planktonic counterpart. Consequently, compounds that can inhibit biofilm formation are of great interest for novel therapeutics. In this study, a screening approach was used to identify novel cyclic dipeptides that have anti-biofilm activity against oral pathogens. Five new active compounds were identified that prevent biofilm formation by the cariogenic bacterium Streptococcus mutans and the pathogenic fungus Candida albicans. These compounds also inhibit the adherence of microorganisms to a hydroxylapatite surface. Further investigations were conducted on these compounds to establish the structure-activity relationship, and it was deduced that the common cleft pattern is required for these molecules to act effectively against biofilms.
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Affiliation(s)
- Gaëlle Simon
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine Dentaire, Université Laval, 2420, rue de la Terrasse, Québec, QC G1V 0A6, Canada; Département de Chimie and PROTEO, Université Laval, Québec, QC G1V 0A6, Canada
| | - Christopher Bérubé
- Département de Chimie and PROTEO, Université Laval, Québec, QC G1V 0A6, Canada
| | - Normand Voyer
- Département de Chimie and PROTEO, Université Laval, Québec, QC G1V 0A6, Canada. normand.voyer.@chm.ulaval.ca
| | - Daniel Grenier
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine Dentaire, Université Laval, 2420, rue de la Terrasse, Québec, QC G1V 0A6, Canada.
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15
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Pétry N, Benakki H, Clot E, Retailleau P, Guenoun F, Asserar F, Sekkat C, Métro TX, Martinez J, Lamaty F. A mechanochemical approach to access the proline-proline diketopiperazine framework. Beilstein J Org Chem 2017; 13:2169-2178. [PMID: 29114324 PMCID: PMC5669228 DOI: 10.3762/bjoc.13.217] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/21/2017] [Indexed: 12/15/2022] Open
Abstract
Ball milling was exploited to prepare a substituted proline building block by mechanochemical nucleophilic substitution. Subsequently, the mechanocoupling of hindered proline amino acid derivatives was developed to provide proline-proline dipeptides under solvent-free conditions. A deprotection-cyclization sequence yielded the corresponding diketopiperazines that were obtained with a high stereoselectivity which could be explained by DFT calculations. Using this method, an enantiopure disubstituted Pro-Pro diketopiperazine was synthesized in 4 steps, making 5 new bonds using a ball mill.
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Affiliation(s)
- Nicolas Pétry
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Hafid Benakki
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France.,Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Eric Clot
- Institut Charles Gerhardt, UMR 5253 CNRS-UM-ENSCM, Université de Montpellier, Place Eugène Bataillon, cc 1501, 34095 Montpellier Cedex 5, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Farhate Guenoun
- Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Fatima Asserar
- Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Chakib Sekkat
- Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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16
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Stereoselective synthesis of Xaa-Yaa type (Z)-chloroalkene dipeptide isosteres via efficient utilization of organocopper reagents mediated allylic alkylation. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Vahdati L, Kaffy J, Brinet D, Bernadat G, Correia I, Panzeri S, Fanelli R, Lequin O, Taverna M, Ongeri S, Piarulli U. Synthesis and Characterization of Hairpin Mimics that Modulate the Early Oligomerization and Fibrillization of Amyloid β-Peptide. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Leila Vahdati
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Julia Kaffy
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Dimitri Brinet
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
- Protéins and Nanotechnology in analytical science; Institut Galien de Paris Sud; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Guillaume Bernadat
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Isabelle Correia
- Sorbonne Universités; UPMC Univ Paris 06; Ecole Normale Supérieure; PSL Research University; CNRS; Laboratoire des Biomolécules; 4 place Jussieu 75252 Paris Cedex 05 France
| | - Silvia Panzeri
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
| | - Roberto Fanelli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
| | - Olivier Lequin
- Sorbonne Universités; UPMC Univ Paris 06; Ecole Normale Supérieure; PSL Research University; CNRS; Laboratoire des Biomolécules; 4 place Jussieu 75252 Paris Cedex 05 France
| | - Myriam Taverna
- Protéins and Nanotechnology in analytical science; Institut Galien de Paris Sud; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Sandrine Ongeri
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Umberto Piarulli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
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18
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Mendive-Tapia L, Albornoz-Grados A, Bertran A, Albericio F, Lavilla R. Oxidative couplings on tryptophan-based diketopiperazines leading to fused and bridged chemotypes. Chem Commun (Camb) 2017; 53:2740-2743. [DOI: 10.1039/c7cc00555e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective C–C and C–N oxidative couplings on tryptophan-based diketopiperazines allow the direct access to two novel scaffolds.
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Affiliation(s)
- Lorena Mendive-Tapia
- Department of Inorganic and Organic Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
| | | | - Alexandra Bertran
- Department of Inorganic and Organic Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
| | - Fernando Albericio
- Department of Inorganic and Organic Chemistry
- University of Barcelona
- 08028 Barcelona
- Spain
- CIBER-BBN
| | - Rodolfo Lavilla
- CIBER-BBN
- Networking Centre on Bioengineering, Biomaterials and Nanomedicine
- 08028 Barcelona
- Spain
- Laboratory of Organic Chemistry
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19
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Yamamoto T, Dai J, Jacobsen NE, Ammam M, Hall GB, Mozziconacci O, Schöneich C, Wilson GS, Glass RS. Neighboring π-Amide Participation in Thioether Oxidation: Conformational Control. Org Lett 2016; 18:3522-5. [DOI: 10.1021/acs.orglett.6b01309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takuhei Yamamoto
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Jixun Dai
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Neil E. Jacobsen
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Malika Ammam
- Department
of Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Gabriel B. Hall
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Olivier Mozziconacci
- Department
of Pharmaceutical Chemistry, The University of Kansas, Lawrence, Kansas 66047, United States
| | - Christian Schöneich
- Department
of Pharmaceutical Chemistry, The University of Kansas, Lawrence, Kansas 66047, United States
| | - George S. Wilson
- Department
of Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Richard S. Glass
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
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20
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Nakao M, Hiroyama Y, Fukayama S, Sano S. N4-methylation changes the conformation of (3S,6S)-3-alkyl-6-benzylpiperazine-2,5-diones from folded to extended. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Affiliation(s)
- Christopher Bérubé
- Département de chimie and PROTEO, Université Laval, Faculté des sciences et génie, Québec, Canada
| | - Normand Voyer
- Département de chimie and PROTEO, Université Laval, Faculté des sciences et génie, Québec, Canada
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22
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Tomberg A, De Cesco S, Huot M, Moitessier N. Solvent effect in diastereoselective intramolecular Diels–Alder reactions. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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23
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Bortoluzzi M, Marchetti F, Murrali MG, Pampaloni G. Revisitation of the PCl5-chlorination reaction of α-amino acids: Spectroscopic and DFT insights, and synthesis of the L-proline-derived 2,5-diketopiperazine. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.10.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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25
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Synthetic and structural routes for the rational conversion of peptides into small molecules. Methods Mol Biol 2015; 1268:159-93. [PMID: 25555725 DOI: 10.1007/978-1-4939-2285-7_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The demand for modified peptides with improved stability profiles and pharmacokinetic properties is driving extensive research effort in this field. The conversion of peptides into organic molecules, as traditional drugs, is a long and puzzled way. Many and versatile approaches have been described for designing peptide mimetics: the substitution of natural residues with modified amino acids and the rigidification and modification of the backbone are the main structural and chemical routes walked in medicinal chemistry. All of these strategies have been successfully applied to obtain active new compounds in molecular biology, drug discovery and design. Here we propose a panoramic review of the most common methods for the preparation of modified peptides and the most interesting findings of the last decade.
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26
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Bortoluzzi M, Marchetti F, Murrali MG, Pampaloni G, Zacchini S. The chlorinating behaviour of WCl6 towards α-aminoacids. Dalton Trans 2015; 44:8729-38. [DOI: 10.1039/c5dt00518c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
WCl6 behaves as a selective chlorinating agent towards the carboxylic function of primary and secondary α-aminoacids. The initial formation of α-ammonium acylchloride salts may be followed by HCl elimination and, in the case of l-proline derived species, a clean cyclization reaction.
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Affiliation(s)
- Marco Bortoluzzi
- University of Venezia Ca’ Foscari
- Dipartimento di Scienze Molecolari e Nanosistemi
- I-30123 Venezia
- Italy
| | - Fabio Marchetti
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Maria Grazia Murrali
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Guido Pampaloni
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Stefano Zacchini
- University of Bologna
- Dipartimento di Chimica Industriale “Toso Montanari”
- I-40136 Bologna
- Italy
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27
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Pereira PC, Arends IW, Sheldon RA. A green and expedient synthesis of enantiopure diketopiperazines via enzymatic resolution of unnatural amino acids. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Treder AP, Tremblay MC, Yudin AK, Marsault E. Solid-Phase Synthesis of Piperazinones via Disrupted Ugi Condensation. Org Lett 2014; 16:4674-7. [DOI: 10.1021/ol5023118] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Adam P. Treder
- Département
de Pharmacologie, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada J1H 5N4
| | - Marie-Claude Tremblay
- Département
de Pharmacologie, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada J1H 5N4
| | - Andrei K. Yudin
- Department
of Chemistry, University of Toronto, Davenport Building, rm. 362, 80
St. George, Toronto, ON, Canada M5S 3H6
| | - Eric Marsault
- Département
de Pharmacologie, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada J1H 5N4
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29
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Design and synthesis of novel soluble 2,5-diketopiperazine derivatives as potential anticancer agents. Eur J Med Chem 2014; 83:236-44. [DOI: 10.1016/j.ejmech.2014.06.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 02/05/2014] [Accepted: 06/13/2014] [Indexed: 11/24/2022]
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30
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Koopmanschap G, Ruijter E, Orru RVA. Isocyanide-based multicomponent reactions towards cyclic constrained peptidomimetics. Beilstein J Org Chem 2014; 10:544-98. [PMID: 24605172 PMCID: PMC3943360 DOI: 10.3762/bjoc.10.50] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 01/24/2014] [Indexed: 12/16/2022] Open
Abstract
In the recent past, the design and synthesis of peptide mimics (peptidomimetics) has received much attention. This because they have shown in many cases enhanced pharmacological properties over their natural peptide analogues. In particular, the incorporation of cyclic constructs into peptides is of high interest as they reduce the flexibility of the peptide enhancing often affinity for a certain receptor. Moreover, these cyclic mimics force the molecule into a well-defined secondary structure. Constraint structural and conformational features are often found in biological active peptides. For the synthesis of cyclic constrained peptidomimetics usually a sequence of multiple reactions has been applied, which makes it difficult to easily introduce structural diversity necessary for fine tuning the biological activity. A promising approach to tackle this problem is the use of multicomponent reactions (MCRs), because they can introduce both structural diversity and molecular complexity in only one step. Among the MCRs, the isocyanide-based multicomponent reactions (IMCRs) are most relevant for the synthesis of peptidomimetics because they provide peptide-like products. However, these IMCRs usually give linear products and in order to obtain cyclic constrained peptidomimetics, the acyclic products have to be cyclized via additional cyclization strategies. This is possible via incorporation of bifunctional substrates into the initial IMCR. Examples of such bifunctional groups are N-protected amino acids, convertible isocyanides or MCR-components that bear an additional alkene, alkyne or azide moiety and can be cyclized via either a deprotection-cyclization strategy, a ring-closing metathesis, a 1,3-dipolar cycloaddition or even via a sequence of multiple multicomponent reactions. The sequential IMCR-cyclization reactions can afford small cyclic peptide mimics (ranging from four- to seven-membered rings), medium-sized cyclic constructs or peptidic macrocycles (>12 membered rings). This review describes the developments since 2002 of IMCRs-cyclization strategies towards a wide variety of small cyclic mimics, medium sized cyclic constructs and macrocyclic peptidomimetics.
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Affiliation(s)
- Gijs Koopmanschap
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, de Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, de Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Romano VA Orru
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, de Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
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31
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Quantification of cyclic dipeptides from cultures of Lactobacillus brevis R2Δ by HRGC/MS using stable isotope dilution assay. Anal Bioanal Chem 2014; 406:2433-44. [DOI: 10.1007/s00216-014-7620-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/19/2013] [Accepted: 01/09/2014] [Indexed: 10/25/2022]
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32
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Bezanson M, Pottel J, Bilbeisi R, Toumieux S, Cueto M, Moitessier N. Stereo- and Regioselective Synthesis of Polysubstituted Chiral 1,4-Oxazepanes. J Org Chem 2013; 78:872-85. [PMID: 23305339 DOI: 10.1021/jo3021715] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Michelle Bezanson
- Department of Chemistry, McGill University, 801 Sherbrooke Street
West, Montreal, Québec, Canada H3A 2K6
| | - Joshua Pottel
- Department of Chemistry, McGill University, 801 Sherbrooke Street
West, Montreal, Québec, Canada H3A 2K6
| | - Rana Bilbeisi
- Department of Chemistry, McGill University, 801 Sherbrooke Street
West, Montreal, Québec, Canada H3A 2K6
| | - Sylvestre Toumieux
- Department of Chemistry, McGill University, 801 Sherbrooke Street
West, Montreal, Québec, Canada H3A 2K6
| | - Mickaël Cueto
- Department of Chemistry, McGill University, 801 Sherbrooke Street
West, Montreal, Québec, Canada H3A 2K6
| | - Nicolas Moitessier
- Department of Chemistry, McGill University, 801 Sherbrooke Street
West, Montreal, Québec, Canada H3A 2K6
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33
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Preciado S, Mendive-Tapia L, Torres-García C, Zamudio-Vázquez R, Soto-Cerrato V, Pérez-Tomás R, Albericio F, Nicolás E, Lavilla R. Synthesis and biological evaluation of a post-synthetically modified Trp-based diketopiperazine. MEDCHEMCOMM 2013. [DOI: 10.1039/c3md20353k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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34
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Barman AK, Verma S. Solid state structures and solution phase self-assembly of clicked mannosylated diketopiperazines. RSC Adv 2013. [DOI: 10.1039/c3ra42310g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Nicolaou KC, Lu M, Totokotsopoulos S, Heretsch P, Giguère D, Sun YP, Sarlah D, Nguyen TH, Wolf IC, Smee DF, Day CW, Bopp S, Winzeler EA. Synthesis and biological evaluation of epidithio-, epitetrathio-, and bis-(methylthio)diketopiperazines: synthetic methodology, enantioselective total synthesis of epicoccin G, 8,8'-epi-ent-rostratin B, gliotoxin, gliotoxin G, emethallicin E, and haematocin and discovery of new antiviral and antimalarial agents. J Am Chem Soc 2012; 134:17320-32. [PMID: 22978674 DOI: 10.1021/ja308429f] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An improved sulfenylation method for the preparation of epidithio-, epitetrathio-, and bis-(methylthio)diketopiperazines from diketopiperazines has been developed. Employing NaHMDS and related bases and elemental sulfur or bis[bis(trimethylsilyl)amino]trisulfide (23) in THF, the developed method was applied to the synthesis of a series of natural and designed molecules, including epicoccin G (1), 8,8'-epi-ent-rostratin B (2), gliotoxin (3), gliotoxin G (4), emethallicin E (5), and haematocin (6). Biological screening of selected synthesized compounds led to the discovery of a number of nanomolar antipoliovirus agents (i.e., 46, 2,2'-epi-46, and 61) and several low-micromolar anti- Plasmodium falciparum lead compounds (i.e., 46, 2,2'-epi-46, 58, 61, and 1).
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
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36
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Borthwick AD. 2,5-Diketopiperazines: synthesis, reactions, medicinal chemistry, and bioactive natural products. Chem Rev 2012; 112:3641-716. [PMID: 22575049 DOI: 10.1021/cr200398y] [Citation(s) in RCA: 606] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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37
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Heterocycles in peptidomimetics and pseudopeptides: design and synthesis. Pharmaceuticals (Basel) 2012; 5:297-316. [PMID: 24281380 PMCID: PMC3763636 DOI: 10.3390/ph5030297] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 02/22/2012] [Accepted: 02/28/2012] [Indexed: 11/17/2022] Open
Abstract
This minireview provides a brief outline of the peculiar aspects of the preparation of peptidomimetic and pseudopeptidic structures containing heterocycles. In particular novel tricyclic structures are investigated as potential drugs.
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Monbaliu JCM, Hansen FK, Beagle LK, Panzner MJ, Steel PJ, Todadze E, Stevens CV, Katritzky AR. A New Benzotriazole-Mediated Stereoflexible Gateway to Hetero-2,5-diketopiperazines. Chemistry 2012; 18:2632-8. [DOI: 10.1002/chem.201103143] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Indexed: 11/08/2022]
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39
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Durini M, Sahr FA, Kuhn M, Civera M, Gennari C, Piarulli U. Bifunctional 2,5-Diketopiperazines as Efficient Organocatalysts for the Enantioselective Conjugate Addition of Aldehydes to Nitroolefins. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100794] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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