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Witkowski M, Trzybiński D, Pawlędzio S, Woźniak K, Dzwolak W, Królikowska A. The Structural Characterisation and DFT-Aided Interpretation of Vibrational Spectra for Cyclo(l-Cys-d-Cys) Cyclic Dipeptide in a Solid State. Molecules 2023; 28:5902. [PMID: 37570871 PMCID: PMC10421304 DOI: 10.3390/molecules28155902] [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: 06/30/2023] [Revised: 07/25/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Cyclic dipeptides with two intramolecular peptide bonds forming a six-membered 2,5-diketopiperazine ring are gaining significant attention due to their biological and chemical properties. Small changes in the local geometry of such molecules (from cis to trans) can lead to significant structural differences. This work presents the results of a study of cyclo(l-Cys-d-Cys), a dipeptide comprising two cysteine molecules in opposite chiral configurations, with the functional groups situated at both sides of the diketopiperazine ring. X-ray diffraction (XRD) experiment revealed that the molecule crystallises in the P-1 space group, which includes the centre of inversion. The IR and Raman vibrational spectra of the molecule were acquired and interpreted in terms of the potential energy distribution (PED) according to the results of density functional theory (DFT) calculations. The DFT-assisted analysis of energy frameworks for the hydrogen bond network within molecular crystals was performed to support the interpretation of X-ray structural data. The optimisation of the computational model based on three-molecule geometry sections from the crystallographic structure, selected to appropriately reflect the intermolecular interactions responsible for the formation of 1D molecular tapes in cyclo(l-Cys-d-Cys) crystal, allowed for better correspondence between theoretical and experimental vibrational spectra. This work can be considered the first complete structural characterisation of cyclo(l-Cys-d-Cys), complemented via vibrational spectroscopy results with full band assignment aided with the use of the DFT method.
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Affiliation(s)
- Marcin Witkowski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warszawa, Poland
| | - Damian Trzybiński
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Sylwia Pawlędzio
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Wojciech Dzwolak
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warszawa, Poland
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Agata Królikowska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warszawa, Poland
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2
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Silva RF, Luz-Lima C, Freire PTC, Melo FEA, Pinheiro GS. High-temperature Raman spectra of dipeptide α-L-aspartyl-L-alanine crystal. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 297:122746. [PMID: 37086536 DOI: 10.1016/j.saa.2023.122746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Crystals of dipeptide α-L-aspartyl-L-alanine (α-Asp-Ala), C7H12N2O5, were studied under high-temperature conditions through vibrational spectroscopy (IR and Raman) and thermal analysis (Differential Scanning Calorimetry - DSC). From the analysis of the results, it is possible to conclude that: (i) the studied material undergoes a reversible order-disorder phase transition at 373 K on heating, where several changes were observed in the vibrational spectra, especially with vibrational modes of the units that participate directly of the hydrogen bonds; (ii) the phase transition undergone by the α-Asp-Ala crystal (about 373 K) involves changes in hydrogen bonds, possibly the rupture of at least one of them, and change in the conformation of the molecules in the unit cell.
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Affiliation(s)
- R F Silva
- Departamento de Física, Campus Ministro Petrônio Portella, Universidade Federal do Piauí, CEP 64049-550, Teresina, PI, Brazil
| | - C Luz-Lima
- Departamento de Física, Campus Ministro Petrônio Portella, Universidade Federal do Piauí, CEP 64049-550, Teresina, PI, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760, Fortaleza, CE, Brazil
| | - F E A Melo
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760, Fortaleza, CE, Brazil
| | - G S Pinheiro
- Departamento de Física, Campus Ministro Petrônio Portella, Universidade Federal do Piauí, CEP 64049-550, Teresina, PI, Brazil..
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3
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Jothi AI, Paul MWB, Alexander V. A comparative molecular structure – NLO activity study of ortho-bridged dibenzaldehydes: Synthesis, crystal structure, SHG, and DFT studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Various Stacking Patterns of Two‐Dimensional Molecular Assemblies in Hydrogen‐Bonded Cocrystals: Insight into Competitive Intermolecular Interactions and Control of Stacking Patterns. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Donoshita M, Yoshida Y, Hayashi M, Ikeda R, Tanaka S, Yamamura Y, Saito K, Kawaguchi S, Sugimoto K, Kitagawa H. Various Stacking Patterns of Two-Dimensional Molecular Assemblies in Hydrogen-Bonded Cocrystals: Insight on Competitive Intermolecular Interactions and Control of Stacking Patterns. Angew Chem Int Ed Engl 2021; 60:22839-22848. [PMID: 34374186 DOI: 10.1002/anie.202107784] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/19/2021] [Indexed: 11/08/2022]
Abstract
We first demonstrate the rational control over the stacking patterns in two-dimensional (2D) molecular assemblies using chemical modification. A target system is a hydrogen-bonded cocrystal composed of 2-pyrrolidone (Py) and chloranilic acid (CA) with 2:1 composition ( PyCA ). X-ray crystallography revealed that various weak intersheet interactions give rise to a variety of metastable overlapping patterns comprised of the 2D assemblies mainly formed via hydrogen bonds, affording reversible and irreversible structural phase transitions. We successfully prepared cocrystals of Py and anilic acids bearing different halogens, in which 2D assemblies isostructural with those observed in PyCA exhibit various overlapping patterns. The order of stability for each overlapping pattern estimated using theoretical calculations of the intermolecular interactions did not completely coincide with those indicated by our experimental results, which can be explained by considering the entropic effect, i.e., the molecular motion of Py as detected using nuclear quadrupole resonance spectroscopy.
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Affiliation(s)
- Masaki Donoshita
- Kyoto University: Kyoto Daigaku, Division of Chemistry, Graduate School of Science, Oiwakecho Kitashirakawa, Sakyo-ku, 606-8502, Kyoto, JAPAN
| | - Yukihiro Yoshida
- Kyoto University: Kyoto Daigaku, Division of Chemistry, Graduate School of Science, Kitashirakawa Oiwakecho, Sakyo-ku, 606-8502, Kyoto, JAPAN
| | - Mikihiro Hayashi
- Nagasaki University: Nagasaki Daigaku, Faculty of Education, 1-14, Bunkyo-machi, 852-8521, Nagasaki, JAPAN
| | - Ryuichi Ikeda
- Kyoto University: Kyoto Daigaku, Division of Chemistry, Graduate School of Science, Oiwakecho kitashirakawa, Sakyo-ku, 606-8502, Kyoto, JAPAN
| | - Susumu Tanaka
- National Institute of Technology, Yonago College, Department of Integrated Engineering, 4448, Hikona-cho, Yonago, 683-8502, Tottori, JAPAN
| | - Yasuhisa Yamamura
- University of Tsukuba, Department of Chemistry, Faculty of Pure and Applied Sciences, Tsukuba, 305-8571, Ibaraki, JAPAN
| | - Kazuya Saito
- University of Tsukuba: Tsukuba Daigaku, Department of Chemistry, Faculty of Pure and Applied Sciences, Tsukuba, 305-8571, Ibaraki, JAPAN
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, 679-5148, Hyogo, JAPAN
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, 679-5148, Hyogo, JAPAN
| | - Hiroshi Kitagawa
- Kyoto University, Division of Chemistry, Graduate School of Science, Kitashirakawa Oiwakecho, Sakyo-ku, 606-8502, Kyoto, JAPAN
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Chen Y, Yang Y, Orr AA, Makam P, Redko B, Haimov E, Wang Y, Shimon LJW, Rencus‐Lazar S, Ju M, Tamamis P, Dong H, Gazit E. Self‐Assembled Peptide Nano‐Superstructure towards Enzyme Mimicking Hydrolysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu Chen
- The Shmunis School of Biomedicine and Cancer Research Tel Aviv University Israel
| | - Yuqin Yang
- Kuang Yaming Honors School & Institute for Brain Sciences Nanjing University China
| | - Asuka A. Orr
- Artie McFerrin Department of Chemical Engineering Texas A&M University College Station TX USA
| | - Pandeeswar Makam
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi UP-221005 India
| | - Boris Redko
- BLAVATNIK CENTER for Drug Discovery Tel Aviv University Israel
| | - Elvira Haimov
- BLAVATNIK CENTER for Drug Discovery Tel Aviv University Israel
| | - Yannan Wang
- National & Local Joint Engineering Research Center on Biomass Resource Utilization Nankai University China
| | - Linda J. W. Shimon
- Department of Chemical Research Support Weizmann Institute of Science Rehovot Israel
| | - Sigal Rencus‐Lazar
- The Shmunis School of Biomedicine and Cancer Research Tel Aviv University Israel
| | - Meiting Ju
- National & Local Joint Engineering Research Center on Biomass Resource Utilization Nankai University China
| | - Phanourios Tamamis
- Artie McFerrin Department of Chemical Engineering Texas A&M University College Station TX USA
| | - Hao Dong
- Kuang Yaming Honors School & Institute for Brain Sciences Nanjing University China
| | - Ehud Gazit
- The Shmunis School of Biomedicine and Cancer Research Tel Aviv University Israel
- Department of Materials Science and Engineering Tel Aviv University Israel
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7
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Chen Y, Yang Y, Orr AA, Makam P, Redko B, Haimov E, Wang Y, Shimon LJW, Rencus-Lazar S, Ju M, Tamamis P, Dong H, Gazit E. Self-Assembled Peptide Nano-Superstructure towards Enzyme Mimicking Hydrolysis. Angew Chem Int Ed Engl 2021; 60:17164-17170. [PMID: 34014019 DOI: 10.1002/anie.202105830] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Indexed: 12/15/2022]
Abstract
The structural arrangement of amino acid residues in native enzymes underlies their remarkable catalytic properties, thus providing a notable point of reference for designing potent yet simple biomimetic catalysts. Herein, we describe a minimalistic approach to construct a dipeptide-based nano-superstructure with enzyme-like activity. The self-assembled biocatalyst comprises one peptide as a single building block, readily synthesized from histidine. Through coordination with zinc ion, the peptide self-assembly procedure allows the formation of supramolecular β-sheet ordered nanocrystals, which can be used as basic units to further construct higher-order superstructure. As a result, remarkable hydrolysis activity and enduring stability are demonstrated. Our work exemplifies the use of a bioinspired supramolecular assembly approach to develop next-generation biocatalysts for biotechnological applications.
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Affiliation(s)
- Yu Chen
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Israel
| | - Yuqin Yang
- Kuang Yaming Honors School & Institute for Brain Sciences, Nanjing University, China
| | - Asuka A Orr
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Pandeeswar Makam
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, UP-221005, India
| | - Boris Redko
- BLAVATNIK CENTER for Drug Discovery, Tel Aviv University, Israel
| | - Elvira Haimov
- BLAVATNIK CENTER for Drug Discovery, Tel Aviv University, Israel
| | - Yannan Wang
- National & Local Joint Engineering Research Center on Biomass Resource Utilization, Nankai University, China
| | - Linda J W Shimon
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Sigal Rencus-Lazar
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Israel
| | - Meiting Ju
- National & Local Joint Engineering Research Center on Biomass Resource Utilization, Nankai University, China
| | - Phanourios Tamamis
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Hao Dong
- Kuang Yaming Honors School & Institute for Brain Sciences, Nanjing University, China
| | - Ehud Gazit
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Israel.,Department of Materials Science and Engineering, Tel Aviv University, Israel
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8
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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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9
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Chen Y, Tao K, Ji W, Makam P, Rencus-Lazar S, Gazit E. Self-Assembly of Cyclic Dipeptides: Platforms for Functional Materials. Protein Pept Lett 2021; 27:688-697. [PMID: 32048950 DOI: 10.2174/0929866527666200212123542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 11/22/2022]
Abstract
Supramolecular self-assembled functional materials comprised of cyclic dipeptide building blocks have excellent prospects for biotechnology applications due to their exceptional structural rigidity, morphological flexibility, ease of preparation and modification. Although the pharmacological uses of many natural cyclic dipeptides have been studied in detail, relatively little is reported on the engineering of these supramolecular architectures for the fabrication of functional materials. In this review, we discuss the progress in the design, synthesis, and characterization of cyclic dipeptide supramolecular nanomaterials over the past few decades, highlighting applications in biotechnology and optoelectronics engineering.
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Affiliation(s)
- Yu Chen
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Kai Tao
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Wei Ji
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Pandeeswar Makam
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Sigal Rencus-Lazar
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
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11
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Grzybowski BA, Fitzner K, Paczesny J, Granick S. From dynamic self-assembly to networked chemical systems. Chem Soc Rev 2018; 46:5647-5678. [PMID: 28703815 DOI: 10.1039/c7cs00089h] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Although dynamic self-assembly, DySA, is a relatively new area of research, the past decade has brought numerous demonstrations of how various types of components - on scales from (macro)molecular to macroscopic - can be arranged into ordered structures thriving in non-equilibrium, steady states. At the same time, none of these dynamic assemblies has so far proven practically relevant, prompting questions about the field's prospects and ultimate objectives. The main thesis of this Review is that formation of dynamic assemblies cannot be an end in itself - instead, we should think more ambitiously of using such assemblies as control elements (reconfigurable catalysts, nanomachines, etc.) of larger, networked systems directing sequences of chemical reactions or assembly tasks. Such networked systems would be inspired by biology but intended to operate in environments and conditions incompatible with living matter (e.g., in organic solvents, elevated temperatures, etc.). To realize this vision, we need to start considering not only the interactions mediating dynamic self-assembly of individual components, but also how components of different types could coexist and communicate within larger, multicomponent ensembles. Along these lines, the review starts with the discussion of the conceptual foundations of self-assembly in equilibrium and non-equilibrium regimes. It discusses key examples of interactions and phenomena that can provide the basis for various DySA modalities (e.g., those driven by light, magnetic fields, flows, etc.). It then focuses on the recent examples where organization of components in steady states is coupled to other processes taking place in the system (catalysis, formation of dynamic supramolecular materials, control of chirality, etc.). With these examples of functional DySA, we then look forward and consider conditions that must be fulfilled to allow components of multiple types to coexist, function, and communicate with one another within the networked DySA systems of the future. As the closing examples show, such systems are already appearing heralding new opportunities - and, to be sure, new challenges - for DySA research.
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Affiliation(s)
- Bartosz A Grzybowski
- IBS Center for Soft and Living Matter, UNIST, UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan, 689-798, Republic of Korea.
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Nakao M. Development of Novel Functional Molecules Based on the Molecular Structure Characteristics of Diketopiperazines. YAKUGAKU ZASSHI 2017; 137:1505-1516. [DOI: 10.1248/yakushi.17-00176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Michiyasu Nakao
- Graduate School of Pharmaceutical Sciences, Tokushima University
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14
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Mashhadi SMA, Yunus U, Bhatti MH, Ahmed I, Tahir MN. Synthesis, characterization, solubility and stability studies of hydrate cocrystal of antitubercular Isoniazid with antioxidant and anti-bacterial Protocatechuic acid. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.057] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Kouketsu T, Yokomachi K, Kakimoto MA, Jikei M. Synthesis of Polyamide Dendrimers bearing Multiple Hydrogen Bonding Parts on the Periphery. HIGH PERFORM POLYM 2016. [DOI: 10.1177/0954008304042385] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of polyamide dendrimers (GO-G2) having carboxy1 groups on the periphery were prepared by the divergent method. The reaction of G 18NH2 dendrimer with glutaric acid anhydride gave polyamide dendrimer (Gi-8COOH). The structure of polyamide dendrimers were confirmed by IR, 1H, 13C NMR, MALDI-TOF mass, and elemental analysis. Poly(4-vinylpyridine) (P4VP) was prepared by atom transfer radical polymerization of 4-vinylpyridine. A hydrogen bonded GI-8COOH/P4VP 1/8 (molar ratio) complex was prepared by mixing GIA8COOH with P4VP in methanol, followed by removing the solvent. IR spectrum of Gl-8COOH/P4VP 1/8 complex showed the characteristic absorptions at 2550 and 1950 cm-1 due to the hydrogen bonding. A glass transition temperature (Tg) of GI-8COOH/P4VP 1/8 complex was observed at 177°C by DSC measurement, whereas the Tg values of G 1-8COOH and P4VP were at 147 and 138°C, respectively.
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Affiliation(s)
| | - Kazutoshi Yokomachi
- Department of Organic and Polymeric materials, Tokyo Institute of Technology, Tokyo, Japan
| | - Masa-Aki Kakimoto
- Department of Organic and Polymeric materials, Tokyo Institute of Technology, Tokyo, Japan
| | - Mitsutoshi Jikei
- Department of Material-process Engineering & Applied Chemistry for Environments Akita University, Akita, Japan
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16
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Kumar PPP, Suresh CH, Haridas V. A supramolecular approach to metal ion sensing: cystine-based designer systems for Cu2+, Hg2+, Cd2+ and Pb2+ sensing. RSC Adv 2015. [DOI: 10.1039/c4ra14389b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here, we demonstrate an emergent property from a mixture of two simple cystine containing molecules. The 1 : 1 mixture of pyrene-labelled S1 and tryptophan appended S2 form the heterodimeric system S1 : S2, which shows a unique metal binding ability.
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Affiliation(s)
- P. P. Praveen Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Cherumuttathu H. Suresh
- Inorganic and Theoretical Chemistry Section
- CSTD
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - V. Haridas
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
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17
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Sano S, Nakao M, Fukayama S, Kitaike S. Synthesis of Rhodotorulic Acid and Its 1,4-Dimethylated Derivative. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)67] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Parker ML, Osuna S, Bollot G, Vaddypally S, Zdilla MJ, Houk KN, Schafmeister CE. Acceleration of an aromatic Claisen rearrangement via a designed spiroligozyme catalyst that mimics the ketosteroid isomerase catalytic dyad. J Am Chem Soc 2014; 136:3817-27. [PMID: 24456160 PMCID: PMC4004270 DOI: 10.1021/ja409214c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Indexed: 01/03/2023]
Abstract
A series of hydrogen-bonding catalysts have been designed for the aromatic Claisen rearrangement of a 1,1-dimethylallyl coumarin. These catalysts were designed as mimics of the two-point hydrogen-bonding interaction present in ketosteroid isomerase that has been proposed to stabilize a developing negative charge on the ether oxygen in the migration of the double bond.1 Two hydrogen bond donating groups, a phenol alcohol and a carboxylic acid, were grafted onto a conformationally restrained spirocyclic scaffold, and together they enhance the rate of the Claisen rearrangement by a factor of 58 over the background reaction. Theoretical calculations correctly predict the most active catalyst and suggest that both preorganization and favorable interactions with the transition state of the reaction are responsible for the observed rate enhancement.
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Affiliation(s)
- Matthew
F. L. Parker
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Sílvia Osuna
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Guillaume Bollot
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Shivaiah Vaddypally
- Department
of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania, 19122, United States
| | - Michael J. Zdilla
- Department
of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania, 19122, United States
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Christian E. Schafmeister
- Department
of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania, 19122, United States
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Abstract
Piperazinediones1that incorporate three geometrically and chemically independent recognition elements can assemble predictably into a solid.
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Affiliation(s)
- Eugene A. Mash
- Department of Chemistry and Biochemistry
- University of Arizona
- Tucson, USA
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Srirambhatla VK, Kraft A, Watt S, Powell AV. A robust two-dimensional hydrogen-bonded network for the predictable assembly of ternary co-crystals of furosemide. CrystEngComm 2014. [DOI: 10.1039/c4ce01692k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Identification of a two-dimensional hydrogen-bonded network leads to a new family of ternary co-crystals of furosemide.
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Affiliation(s)
- Vijay K. Srirambhatla
- Institute of Chemical Sciences
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh EH14 4AS, UK
| | - Arno Kraft
- Institute of Chemical Sciences
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh EH14 4AS, UK
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23
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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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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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25
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Sun T, Deutsch C, Krause N. Combined coinage metal catalysis in natural product synthesis: total synthesis of (+)-varitriol and seven analogs. Org Biomol Chem 2012; 10:5965-70. [DOI: 10.1039/c2ob25069a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Govindaraju T. Spontaneous self-assembly of aromatic cyclic dipeptide into fibre bundles with high thermal stability and propensity for gelation. Supramol Chem 2011. [DOI: 10.1080/10610278.2011.628393] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- T. Govindaraju
- a Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore, 560064, India
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Govindaraju T, Pandeeswar M, Jayaramulu K, Jaipuria G, Atreya HS. Spontaneous self-assembly of designed cyclic dipeptide (Phg-Phg) into two-dimensional nano- and mesosheets. Supramol Chem 2011. [DOI: 10.1080/10610278.2010.550685] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- T. Govindaraju
- a Bioorganic Chemistry Laboratory, New Chemistry Unit , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore , 560064 , India
| | - M. Pandeeswar
- a Bioorganic Chemistry Laboratory, New Chemistry Unit , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore , 560064 , India
| | - K. Jayaramulu
- b Molecular Materials Laboratory , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore , 560064 , India
| | - Garima Jaipuria
- c NMR Research Centre , Indian Institute of Science , Bangalore , 560012 , India
| | - Hanudatta S. Atreya
- c NMR Research Centre , Indian Institute of Science , Bangalore , 560012 , India
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Ando S, Grote AL, Koide K. Diastereoselective synthesis of diketopiperazine bis-α,β-epoxides. J Org Chem 2011; 76:1155-8. [PMID: 21250704 DOI: 10.1021/jo102096d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Functionalized diketopiperazines (dioxopiperazines) are an important class of molecules in medicinal chemistry and material science. Herein we report a diastereoselective synthesis of diketopiperazine bis-α,β-epoxides via the oxidation of exocyclic olefins. Although six diastereomers may be formed by this approach, only one or two of them were observed.
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Affiliation(s)
- Shin Ando
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, USA
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29
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Lemmerer A, Bernstein J, Kahlenberg V. Covalent assistance to supramolecular synthesis: directing the supramolecular assembly of co-crystals by in situ modification of hydrogen bonding functionality. CrystEngComm 2011. [DOI: 10.1039/c0ce00347f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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30
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Kim D, Heo J, Ham S, Yoo H, Lee CH, Yoon H, Ryu D, Kim D, Jang WD. Cyclodipeptide-bridged porphyrin dimer supramolecular assemblies. Chem Commun (Camb) 2010; 47:2405-7. [PMID: 21152666 DOI: 10.1039/c0cc04654j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cyclodipeptide-bridged porphyrin dimer has formed fibrous and toroidal multi-porphyrin array systems by hydrogen bonding-mediated self-assembly.
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Affiliation(s)
- Dongyong Kim
- Department of Chemistry, College of Science, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
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Murnen HK, Rosales AM, Jaworski JN, Segalman RA, Zuckermann RN. Hierarchical Self-Assembly of a Biomimetic Diblock Copolypeptoid into Homochiral Superhelices. J Am Chem Soc 2010; 132:16112-9. [DOI: 10.1021/ja106340f] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Hannah K. Murnen
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, and Molecular Foundry, Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720
| | - Adrianne M. Rosales
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, and Molecular Foundry, Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720
| | - Jonathan N. Jaworski
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, and Molecular Foundry, Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720
| | - Rachel A. Segalman
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, and Molecular Foundry, Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720
| | - Ronald N. Zuckermann
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, and Molecular Foundry, Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720
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Leone-Bay A, Grant M, Greene S, Stowell G, Daniels S, Smithson A, Villanueva S, Cope S, Carrera K, Reyes S, Richardson P. Evaluation of novel particles as an inhalation system for GLP-1. Diabetes Obes Metab 2009; 11:1050-9. [PMID: 19732123 DOI: 10.1111/j.1463-1326.2009.01096.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM The feasibility of administering native glucagon-like peptide 1 (GLP-1) as GLP-1 Technosphere Inhalation Powder for diabetes therapy has been demonstrated in a rat model. METHODS GLP-1 Technosphere Inhalation Powders containing 5, 10 and 15% GLP-1 were prepared and administered to healthy female Sprague-Dawley rats and to male Zucker diabetic obese rats. Rats received a single dose of GLP-1 Technosphere Powder by pulmonary insufflation. GLP-1 pharmacokinetic and pharmacodynamic responses were measured. RESULTS Maximum circulating GLP-1 concentrations were achieved at approximately 10 min after dosing with detectable levels at 40 min. In a food consumption study, Sprague-Dawley rats receiving GLP-1 Technosphere Powder once-daily consumed less food than control rats for up to 24 h after dosing. Cumulative food consumption was decreased approximately 10% after 78 h. In an intraperitoneal glucose tolerance test, Zucker diabetic fatty rats receiving 2 mg GLP-1 Technosphere Powder (0.3 mg GLP-1) by pulmonary insufflation exhibited lower glucose concentrations and higher insulin concentrations than control rats. Pancreatic evaluations showed no differences in apoptotic index or cell proliferation of beta-cells. In addition, a dose-related increase in insulin expression within the pancreas was observed. CONCLUSIONS These data demonstrate the feasibility of administering native GLP-1 as GLP-1 Technosphere Inhalation Powder for diabetes therapy.
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Polaske NW, Nichol GS, Szabó LZ, Olenyuk B. Molecular Solids from Symmetrical Bis(piperazine-2,5-diones) with Open and Closed Monomer Conformations. CRYSTAL GROWTH & DESIGN 2009; 9:2191-2197. [PMID: 20161254 PMCID: PMC2699313 DOI: 10.1021/cg800902u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The design, synthesis and solid state structures of a new class of xylylene-linked bis(1,4- piperazine-2,5-diones) are reported in an effort to extend the molecular framework of piperazine-2,5-diones. These compounds were derived from piperazine-2,5-dione as the core structure, synthesized via a new efficient route, and their crystal structures were determined. We examined the effects of side chain substitution on conformations of the linked bis-DKPs. Crystallization of 3,3'-[1,4-phenylenebis(methylene)]-bis[6-(hydroxymethyl)-1,4-dimethylpiperazine-2,5-dione] yielded molecular solids with an unusual network of "C"-shaped monomers held together by four intermolecular hydrogen bonds per asymmetric unit. Similarly, intermolecular interactions between the iodomethyl groups in 3,3'-[1,4-phenylenebis(methylene)]-bis[6-(iodomethyl)-1,4-dimethyl-piperazine-2,5-dione] result in the monomers adopting a "C"-shape in the solid state. Assembly of the monomers with side chains converted to methyl groups or tert-butyldimethylsilyl ethers, thereby lacking these stabilizing intermolecular interactions, results in an infinite array of "S"-shaped conformations. These results suggest that the interplay between the attractive intermolecular interactions and repulsive steric interactions of the substituents at the C6 and C6' positions of the diketopiperazine rings is important in determining the solid-state conformations of xylylene-linked bis(piperazine-2,5-diones).
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35
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Sanda F, Ohta Y, Terada K. Synthesis of Novel Diketopiperazine-derivative and Obsevation of Self-Assembled Structure. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yang J, Dewal MB, Sobransingh D, Smith MD, Xu Y, Shimizu LS. Examination of the Structural Features That Favor the Columnar Self-Assembly of Bis-urea Macrocycles. J Org Chem 2008; 74:102-10. [DOI: 10.1021/jo801717w] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Yang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - Mahender B. Dewal
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - David Sobransingh
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - Mark D. Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - Yuewen Xu
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - Linda S. Shimizu
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
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37
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Polymorphic and hydrate supramolecular solid state structures of a uracil derived nitronyl nitroxide. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2008.03.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Kaur N, Zhou B, Breitbeil F, Hardy K, Kraft KS, Trantcheva I, Phanstiel O. A delineation of diketopiperazine self-assembly processes: understanding the molecular events involved in Nepsilon-(fumaroyl)diketopiperazine of L-Lys (FDKP) interactions. Mol Pharm 2008; 5:294-315. [PMID: 18254597 DOI: 10.1021/mp700096e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The Nepsilon-fumaroylated diketopiperazine of L-Lys (FDKP, 1) self-assembles into microparticles that can be used for pulmonary drug delivery. When these particles are formulated with insulin, the resultant powder (Technosphere Insulin) provides a novel prandial insulin therapy. To better understand the self-assembly of 1, a series of model compounds were synthesized that allowed for the determination of the preferred intramolecular hydrogen-bonding pattern of FDKP. Variable-temperature NMR (CDCl3) and FTIR studies of acyclic diamides (3-7a) and diketopiperazine models (7b- 9d) revealed the preference of a 10-membered hydrogen bond between one of the diketopiperazine's amido NH and the appended fumaramido-carbonyl (assigned as a "type B" H bond). Molecular modeling studies identified a low energy conformer in the architecture of 1, which contains two Nepsilon-fumaroylated lysine side chains appended to the diketopiperazine core. The lowest energy form involved a "cooperative" hydrogen bond motif which involved only one of the diketopiperazine amides and had one "arm" involved in a type B motif and the other in a "type A" hydrogen bond (i.e., the fumaramidyl NH H-bonding to the diketopiperazine amide carbonyl). This cooperative hydrogen bond scenario orients the appended fumaryl groups into a distinctive 90 degrees arrangement and is likely involved in its self-assembly into microparticles.
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39
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Casarin M, Garau F, Monari M, Pandolfo L, Pettinari C, Venzo A. An experimental and theoretical investigation of the molecular and electronic structure of 2-amino-4-chloro-6-pyrazolyl-[1,3,5]triazine, forming supramolecular linear tapes in the solid state. NEW J CHEM 2008. [DOI: 10.1039/b711136c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Horner MJ, Holman KT, Ward MD. Architectural Diversity and Elastic Networks in Hydrogen-Bonded Host Frameworks: From Molecular Jaws to Cylinders. J Am Chem Soc 2007; 129:14640-60. [DOI: 10.1021/ja0741574] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthew J. Horner
- Contribution from the Department of Chemistry and the Molecular Design Institute, New York University, 100 Washington Square East, New York, New York 10003-6688, and the Department of Chemistry, Georgetown University, Washington, D.C. 20057
| | - K. Travis Holman
- Contribution from the Department of Chemistry and the Molecular Design Institute, New York University, 100 Washington Square East, New York, New York 10003-6688, and the Department of Chemistry, Georgetown University, Washington, D.C. 20057
| | - Michael D. Ward
- Contribution from the Department of Chemistry and the Molecular Design Institute, New York University, 100 Washington Square East, New York, New York 10003-6688, and the Department of Chemistry, Georgetown University, Washington, D.C. 20057
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Brackmann F, de Meijere A. Natural Occurrence, Syntheses, and Applications of Cyclopropyl-Group-Containing α-Amino Acids. 1. 1-Aminocyclopropanecarboxylic Acid and Other 2,3-Methanoamino Acids. Chem Rev 2007; 107:4493-537. [DOI: 10.1021/cr078376j] [Citation(s) in RCA: 208] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Farina Brackmann
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Armin de Meijere
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
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Isaacs L, Chin DN, Bowden N, Xia Y, Whitesides GM. Self-Assembling Systems on Scales from Nanometers to Millimeters: Design and Discovery. PERSPECTIVES IN SUPRAMOLECULAR CHEMISTRY 2007. [DOI: 10.1002/9780470511497.ch1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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43
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de Meijere A, Kozhushkov SI, Schill H. Three-Membered-Ring-Based Molecular Architectures. Chem Rev 2006; 106:4926-96. [PMID: 17165680 DOI: 10.1021/cr0505369] [Citation(s) in RCA: 122] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Armin de Meijere
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
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Pérez-Picaso L, Rios MY, Hernández AN, Martínez J. 1H and 13C assignments of cyclo[N-(Lys-Phe)-Orn-Val], a semicyclic imide tetrapeptide from Burkholderia cepacia. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2006; 44:959-61. [PMID: 16826554 DOI: 10.1002/mrc.1864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The rhizobacteria Burkholderia cepacia biosynthesized the new tetrapeptide Cyclo[N-(Lys-Phe)-Orn-Val] (1), a 2,5-diketopiperazine, and the known siderophore azurechelin (salicylic acid). The structure of 1 was established by means of IR, UV, 1H and 13C NMR, double dimension experiments and MS.
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Affiliation(s)
- Lemuel Pérez-Picaso
- Centro de Investigaciones Químicas de la Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62209, Cuernavaca, Morelos, México
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Feher R, Amabilino DB, Wurst K, Veciana J. A Uracil-Substituted α-Nitronyl Nitroxide. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259908023331] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Robert Feher
- a Institut de Ciència de Materials de Barcelona (CSIC), Campus Universitari , 08193 , Bellaterra , Spain
| | - David B. Amabilino
- a Institut de Ciència de Materials de Barcelona (CSIC), Campus Universitari , 08193 , Bellaterra , Spain
| | - Klaus Wurst
- b Institut für Allgemeine Anorg. und Theoret. Chemie. Universität Innsbruck. , A-6020 , Innrain , 52a, Austria
| | - Jaume Veciana
- a Institut de Ciència de Materials de Barcelona (CSIC), Campus Universitari , 08193 , Bellaterra , Spain
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Lasa M, López P, Cativiela C. Synthesis of the four stereoisomers of cyclobutane analogues of phenylalanine in enantiomerically pure form. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.10.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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47
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Sada K, Inoue K, Tanaka T, Epergyes A, Tanaka A, Tohnai N, Matsumoto A, Miyata M. Multicomponent Organic Alloys Based on Organic Layered Crystals. Angew Chem Int Ed Engl 2005; 44:7059-62. [PMID: 16222649 DOI: 10.1002/anie.200501678] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kazuki Sada
- Department of Chemistry & Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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Sada K, Inoue K, Tanaka T, Epergyes A, Tanaka A, Tohnai N, Matsumoto A, Miyata M. Multicomponent Organic Alloys Based on Organic Layered Crystals. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200501678] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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Weatherhead-Kloster RA, Selby HD, Miller Iii WB, Mash EA. Organic Crystal Engineering with 1,4-Piperazine-2,5-diones. 6. Studies of the Hydrogen-Bond Association of Cyclo[(2-methylamino-4,7-dimethoxyindan-2-carboxylic acid)(2-amino-4,7-dimethoxyindan-2-carboxylic acid)]. J Org Chem 2005; 70:8693-702. [PMID: 16238297 DOI: 10.1021/jo0509096] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[structure: see text] The title 1,4-piperazine-2,5-dione was synthesized in 23% yield over six steps from ethyl 2-amino-4,7-dimethoxyindan-2-carboxylate. Crystallization by slow diffusion of ether into a chloroform solution and by slow evaporation of an ethanol-chloroform-benzene solution produced polymorphic crystalline forms as determined by single-crystal X-ray analysis. The polymorphs exhibited different hydrogen-bonding networks. The association of this piperazinedione in solution was studied using mass spectrometric and nuclear magnetic resonance spectroscopic techniques. The MS and NMR data were interpreted using the solid-state structures as models for solution aggregation. Association constants extracted from the NMR data are in line with those of other cyclic cis amides in chloroform solvent.
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Boto A, De León Y, Gallardo JA, Hernández R. Synthesis of Alkaloid Analogues from α-Amino Acids by One-Pot Radical Decarboxylation/Alkylation. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500124] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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