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Dalal A, Bodak S, Babu SA. Picolinamide-assisted ortho-C-H functionalization of pyrenylglycine derivatives using aryl iodides. Org Biomol Chem 2024; 22:1279-1298. [PMID: 38258893 DOI: 10.1039/d3ob01731a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Chemical transformations involving the pyrenylglycine motif (an unnatural amino acid) and practical methods toward it are seldom known. This work aimed at developing a method for synthesizing novel pyrenylglycine (pyrene-based glycine) unnatural amino acid derivatives. To realize this, initially, a new pyrenylglycine substrate possessing the picolinamide moiety was assembled via the Ugi multicomponent reaction. The picolinamide moiety linked to amine substrates is a well-known bidentate directing group for accomplishing the site-selective γ-C-H functionalization of amines. Subsequently, it was aimed at using a Pd(II)-catalyzed bidentate directing group-aided γ-C-H arylation strategy for generating a wide range of unprecedented examples of C(2)-H arylated pyrenylglycines. Accordingly, pyrenylglycine possessing the picolinamide moiety was subjected to Pd(II)-catalyzed C(2)-H arylation in the non-K-region to afford a library of C(2)-arylated pyrenylglycines (π-extended pyrenes). Additionally, pyrenylglycine-based small peptides were assembled using C(2)-arylated pyrenylglycines. The X-ray structure of a representative compound was obtained, which corroborated the structure of pyrenylglycine and the regioselectivity of C(2)-H arylation of the pyrene in the non-K-region.
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Affiliation(s)
- Arup Dalal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Subhankar Bodak
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
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2
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Ayyavoo K, Velusamy P. Pyrene based materials as fluorescent probes in chemical and biological fields. NEW J CHEM 2021. [DOI: 10.1039/d1nj00158b] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Molecules that experience a change in their fluorescence emission due to the effect of fluorescence enhancement upon binding events, like chemical reactions or a change in their immediate environment, are regarded as fluorescent probes.
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Affiliation(s)
- Kannan Ayyavoo
- Department of Chemistry
- Bharathiar University
- Coimbatore – 641046
- India
| | - Praveena Velusamy
- Department of Chemistry
- Bharathiar University
- Coimbatore – 641046
- India
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Pandey S, Singh H, Yadav A, Juneja S, Khokhar V, Trivedi S. Fluorescence Quenching of Dipyrenylalkanes by an Electron/Charge Acceptor. J Phys Chem B 2020; 124:2668-2675. [PMID: 32164415 DOI: 10.1021/acs.jpcb.0c00954] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Compounds possessing two fluorophoric moieties may exhibit dual fluorescence, one characterizing the monomeric fluorophore unit and the other characterizing the intramolecular aggregate. Fluorescence quenching of two dipyrenylalkanes, 1,3-bis(1-pyrenyl)propane [1Py(3)1Py] and 1,10-bis(1-pyrenyl)decane [1Py(10)1Py] having different alkyl chains separating the two termini pyrenyl groups that are capable of forming an intramolecular excimer, by an electron/charge-accepting quencher, nitromethane, is investigated in four different solvents-nonpolar (cyclohexane (CH)), polar-aprotic (acetonitrile (ACN)), polar-protic (ethanol (EtOH)), and chlorinated (dichloromethane (DCM))-under ambient conditions. For a given probe in a solvent, fluorescence from the monomer and the intramolecular excimer are quenched with similar efficiencies; the efficiency of quenching is higher for the probe with the longer alkyl chain separating the two fluorophores. Quenching efficiency is significantly higher in chlorinated solvent DCM. The bimolecular quenching rate constants for intramolecular excimer, however, are either comparable or lower for the longer alkyl chain compound. It is suggested that, while the donor electronic excited-state energetics is more favorable for the long alkyl chain compound, the approach of the quencher to the intramolecular excimer appears to be hindered by the presence of a longer alkyl chain.
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Affiliation(s)
- Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Harmeet Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Anita Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shreya Juneja
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Vaishali Khokhar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shruti Trivedi
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Lister FGA, Eccles N, Pike SJ, Brown RA, Whitehead GFS, Raftery J, Webb SJ, Clayden J. Bis-pyrene probes of foldamer conformation in solution and in phospholipid bilayers. Chem Sci 2018; 9:6860-6870. [PMID: 30310619 PMCID: PMC6114994 DOI: 10.1039/c8sc02532k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/16/2018] [Indexed: 11/21/2022] Open
Abstract
Exploring the detailed structural features of synthetic molecules in the membrane phase requires sensitive probes of conformation. Here we describe the design, synthesis and characterization of bis(pyrene) probes that report conformational changes in membrane-active dynamic foldamers. The probes were designed to distinguish between left-handed (M) and right-handed (P) screw-sense conformers of 310-helical α-aminoisobutyric acid (Aib) peptide foldamers, both in solution and in bilayer membranes. Several different bis(pyrene) probes were synthesized and ligated to the C-terminus of Aib tetramers that had different chiral residues at the N-terminus, residues that favored either an M or a P screw-sense in the 310-helix. The readily synthesized and conveniently incorporated N-acetyl-1,2-bis(pyren-1'-yl)ethylenediamine probe proved to have the best properties. In solution, changes in foldamer screw-sense induced substantial changes in the ratio of excimer/monomer fluorescence emission (E/M) for this reporter of conformation, with X-ray crystallography revealing that opposite screw-senses produce very different interpyrene distances in the reporter. In bilayers, this convenient and sensitive fluorescent reporter allowed, for the first time, an investigation of how the chirality of natural phospholipids affects foldamer conformation.
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Affiliation(s)
- Francis G A Lister
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK .
| | - Natasha Eccles
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK . .,Manchester Institute of Biotechnology , University of Manchester , 131 Princess St , Manchester M1 7DN , UK
| | - Sarah J Pike
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK . .,Manchester Institute of Biotechnology , University of Manchester , 131 Princess St , Manchester M1 7DN , UK.,Faculty of Life Sciences , University of Bradford , Bradford , West Yorkshire BD7 1DP , UK
| | - Robert A Brown
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK .
| | - George F S Whitehead
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK .
| | - James Raftery
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK .
| | - Simon J Webb
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , UK . .,Manchester Institute of Biotechnology , University of Manchester , 131 Princess St , Manchester M1 7DN , UK
| | - Jonathan Clayden
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
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Yadav A, Pandey S. Excimer Formation Dynamics of Dipyrenyldecane in Structurally Different Ionic Liquids. J Phys Chem B 2017; 121:10922-10933. [PMID: 29131957 DOI: 10.1021/acs.jpcb.7b08329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ionic liquids, being composed of ions alone, may offer alternative pathways for molecular aggregation. These pathways could be controlled by the chemical structure of the cation and the anion of the ionic liquids. Intramolecular excimer formation dynamics of a bifluorophoric probe, 1,3-bis(1-pyrenyl)decane [1Py(10)1Py], where the fluorophoric pyrene moieties are separated by a long decyl chain, is investigated in seven different ionic liquids in 10-90 °C temperature range. The long alkyl separator allows for ample interaction with the solubilizing milieu prior to the formation of the excimer. The ionic liquids are composed of two sets, one having four ionic liquids of 1-butyl-3-methylimidazolium cation ([bmim+]) with different anions and the other having four ionic liquids of bis(trifluoromethylsulfonyl)imide anion ([Tf2N-]) with different cations. The excimer-to-monomer emission intensity ratio (IE/IM) is found to increase with increasing temperature in sigmoidal fashion. Chemical structure of the ionic liquid controls the excimer formation efficiency, as IE/IM values within ionic liquids with the same viscosities are found to be significantly different. The excited-state intensity decay kinetics of 1Py(10)1Py in ionic liquids do not adhere to a simplistic Birk's scheme, where only one excimer conformer forms after excitation. The apparent rate constants of excimer formation (ka) in highly viscous ionic liquids are an order of magnitude lower than those reported in organic solvents. In general, the higher the viscosity of the ionic liquid, the more sensitive is the ka to the temperature with higher activation energy, Ea. The trend in Ea is found to be similar to that for activation energy of the viscous flow (Ea,η). Stokes-Einstein relationship is not followed in [bmim+] ionic liquids; however, with the exception of [choline][Tf2N], it is found to be followed in [Tf2N-] ionic liquids suggesting the cyclization dynamics of 1Py(10)1Py to be diffusion-controlled and to depend on the viscosity of the ionic liquid irrespective of the identity of the cation. The dependence of ionic liquid structure on cyclization dynamics to form intramolecular excimer is amply highlighted.
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Affiliation(s)
- Anita Yadav
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
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Yadav A, Kurur ND, Pandey S. Intramolecular Excimer Formation Dynamics of 1,3-Bis-(1-pyrenyl)propane within 1-Butyl-3-methylimidazolium Hexafluorophosphate and Its Polyethylene Glycol Mixtures. J Phys Chem B 2015; 119:13367-78. [DOI: 10.1021/acs.jpcb.5b07282] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anita Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Narayanan D. Kurur
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Feng X, Hu JY, Iwanaga F, Seto N, Redshaw C, Elsegood MRJ, Yamato T. Blue-Emitting Butterfly-Shaped 1,3,5,9-Tetraarylpyrenes: Synthesis, Crystal Structures, and Photophysical Properties. Org Lett 2013; 15:1318-21. [DOI: 10.1021/ol4002653] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xing Feng
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
| | - Jian-Yong Hu
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
| | - Fumitaka Iwanaga
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
| | - Nobuyuki Seto
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
| | - Carl Redshaw
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
| | - Mark R. J. Elsegood
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
| | - Takehiko Yamato
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan, Department of Organic Device Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan, Department of Chemistry, The University of Hull, Hull HU6 7RX, U.K., and Chemistry Department, Loughborough University, Leicestershire LE11 3TU, U.K
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8
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Rai R, Pandey S. Excimer formation of 6-(1-pyrenyl)hexyl-11(1-pyrenyl)undecanoate within an ionic liquid and cosolvent-modified ionic liquid mixture. Phys Chem Chem Phys 2013; 15:2389-96. [DOI: 10.1039/c2cp44167e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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9
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Hanlon AD, Milosavljevic BH. Appropriate excitation wavelength removes obfuscations from pyrene excimer kinetics and mechanism studies. Photochem Photobiol Sci 2013; 12:787-97. [DOI: 10.1039/c2pp25307k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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Lee YO, Pradhan T, No K, Kim JS. N,N-Dimethylaniline and 1-(trifluoromethyl)benzene-functionalized tetrakis(ethynyl)pyrenes: synthesis, photophysical, electrochemical and computational studies. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Sambasivan R, Ball ZT. Determination of orientational isomerism in rhodium(ii) metallopeptides by pyrene fluorescence. Org Biomol Chem 2012; 10:8203-6. [DOI: 10.1039/c2ob26667a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Affiliation(s)
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, P.O. Box 3148, Mainz, Germany
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13
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Maçanita AL, Zachariasse KA. Viscosity dependence of intramolecular excimer formation with 1,5-bis(1-pyrenylcarboxy)pentane in alkane solvents as a function of temperature. J Phys Chem A 2011; 115:3183-95. [PMID: 21434671 DOI: 10.1021/jp111519s] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Intramolecular excimer formation with 1,5-bis(1-pyrenylcarboxy)pentane, (1PC(5)1PC) is studied as a function of temperature in a series of alkane solvents and in toluene, covering a wide range of solvent viscosities η, from 0.2 to 125 cP. The rate constant k(a) of the monomer → excimer reaction is determined from the effectively single exponential monomer fluorescence decays. For the viscosity dependence of k(a) in n-alkanes, the Stokes-Einstein relation k(a) ∼ η(-1.0) does not hold. Instead, k(a) is proportional to η(-α), with α increasing upon cooling, from 0.56 at 85 °C to 0.86 at -30 °C. The activation energy E(a) of excimer formation with 1PC(5)1PC, always larger than the activation energy E(T/η) of solvent viscous flow, decreases when the solvent viscosity becomes smaller, from 20.7 kJ/mol in n-hexadecane to 11.8 kJ/mol in n-butane, approaching a value of 11-12 kJ/mol for the low viscosity solvents. As the excimer formation process depends on the restricted diffusion of the 1PC end groups as well as on the C-O and C-C rotations in the -O(CH(2))(5)O- chain, the limiting barrier of 11-12 kJ/mol is attributed to the activation energy E(c) of the multiple bond rotations. This fractional viscosity dependence (α < 1.0) is caused by the multidimensional character of the barrier crossing in the excimer formation process. This multidimensional character should also be taken into account in investigations of polymers and biological media employing excimer formation.
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Affiliation(s)
- António L Maçanita
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, Göttingen, Germany
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Jiménez MC, Pischel U, Miranda MA. Photoinduced processes in naproxen-based chiral dyads. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2007. [DOI: 10.1016/j.jphotochemrev.2007.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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15
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Barashkov NN, Sakhno TV, Nurmukhametov RN, Khakhel' OA. Excimers of organic molecules. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1993v062n06abeh000032] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abad S, Vayá I, Jiménez MC, Pischel U, Miranda MA. Diastereodifferentiation of Novel Naphthalene Dyads by Fluorescence Quenching and Excimer Formation. Chemphyschem 2006; 7:2175-83. [PMID: 16986198 DOI: 10.1002/cphc.200600337] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Four new bichromophoric naphthalene dyads in form of diastereomeric pairs are synthesized and photophysically characterized. For a closely related group of compounds (NAP-NAP, MNAP-NAP, MNAP-MNAP), systematic variation of the urea linker led to the observation of intramolecular fluorescence quenching for tertiary urea, but not for secondary urea. Chiral information contained in the dyads has an impact on the efficiency of this process. Furthermore, for the case of (R,R)-MNAP-MNAP, excimer formation in the pre-organized dyad was noted, while being absent in the corresponding (R,S) diastereomer. These differences in photophysical behavior are ascribed to the geometry of the linker and to the chiral information contained in the diastereomeric compounds. Other dyads, such as NPX-NPX, included naproxen as the chromophore. For these compounds strong excimer emission is obtained, however, only very small diastereodifferentiation is observed for the two investigated stereoisomers.
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Affiliation(s)
- Sergio Abad
- Instituto de Tecnología Química UPV-CSIC/Departamento de Química Universidad Politécnica de Valencia Av. de los Naranjos s/n, 46022 Valencia, Spain
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Affiliation(s)
- Lin Pu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, USA
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Hara M, Tojo S, Kawai K, Majima T. Formation and decay of pyrene radical cation and pyrene dimer radical cation in the absence and presence of cyclodextrins during resonant two-photon ionization of pyrene and sodium 1-pyrene sulfonate. Phys Chem Chem Phys 2004. [DOI: 10.1039/b403409k] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Pandey S, Kane MA, Baker GA, Bright FV, Fürstner A, Seidel G, Leitner W. The Photophysics of 6-(1-Pyrenyl)hexyl-11(1-pyrenyl)undecanoate Dissolved in Organic Liquids and Supercritical Carbon Dioxide: Impact on Olefin Metathesis. J Phys Chem B 2002. [DOI: 10.1021/jp011497h] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Siddharth Pandey
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
| | - Maureen A. Kane
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
| | - Gary A. Baker
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
| | - Frank V. Bright
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
| | - Alois Fürstner
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
| | - Günter Seidel
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
| | - Walter Leitner
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, Department of Chemistry, Natural Sciences Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, and Max-Planck-Institut fur Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mulheim an der Ruhr, Germany
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Jones G, Vullev VI. Contribution of a pyrene fluorescence probe to the aggregation propensity of polypeptides. Org Lett 2001; 3:2457-60. [PMID: 11483034 DOI: 10.1021/ol016123l] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] Two synthetic polypeptides, TT1p and TT1b, have been used in comparative aggregation equilibrium studies. The findings reveal that a single alkylpyrene moiety in TT1p contributes about 30% of the polypeptide dimerization energy in aqueous media. This result not only is informative with regard to the aggregation properties of these particular photoactive polypeptides but also provides a quantitative understanding of the limitations on the use of pyrene chromophores as emission probes.
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Affiliation(s)
- G Jones
- Department of Chemistry and Photonics Center, Boston University, Boston, MA 02215, USA.
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21
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Jones G, Vullev VI. Ground- and Excited-State Aggregation Properties of a Pyrene Derivative in Aqueous Media. J Phys Chem A 2001. [DOI: 10.1021/jp010087q] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guilford Jones
- Department of Chemistry and Photonics Center, Boston University, Boston, Massachusetts 02215
| | - Valentine I. Vullev
- Department of Chemistry and Photonics Center, Boston University, Boston, Massachusetts 02215
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Sakurai T, Miyata (nee Nojima) K, Watanabe K, Kubo K, Inoue H. Association Behavior of 1-Pyrenyl Pendants Introduced into the Papain Active Site. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1999. [DOI: 10.1246/bcsj.72.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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van Stam J, De Schryver FC, Boens N, Hermans B, Jérôme R, Trossaert G, Goethals E, Schacht E. Intramolecular Excited-State Processes of a Halato-Telechelic Polymer, Evaluated by Global Compartmental Analysis of the Fluorescence Decay Surface with the Use of Model Compounds. Macromolecules 1997. [DOI: 10.1021/ma961271q] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan van Stam
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Frans C. De Schryver
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Noël Boens
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Bart Hermans
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Robert Jérôme
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Geert Trossaert
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Erik Goethals
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Etienne Schacht
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
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Oishi O, Yamashita S, Ohno M, Lee S, Sugihara G, Nishino N. Peculiar photophysical properties of a conformationally proximal pyrene-pair. Chem Phys Lett 1997. [DOI: 10.1016/s0009-2614(97)00314-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Mihara H, Tanaka Y, Fujimoto T, Nishino N. A pair of pyrene groups as a conformational probe for designed four-α-helix bundle polypeptides. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p29950001915] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Mihara H, Tanaka Y, Fujimoto T, Nishino N. A pair of pyrene groups as a conformational probe for designed two α-helix polypeptides. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p29950001133] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Nakamura H, Lee S, Ono S, Kato T, Aoyagi H. Side reaction of pyrenylalanine-peptides containing NG-tosylarginine during detosylation with hydrogen fluoride. INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 1990; 36:471-5. [PMID: 2276875 DOI: 10.1111/j.1399-3011.1990.tb01308.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Formation of by-products of pyrenylalanine-peptides was observed during the cleavage of a tosyl group in pyrenylalanine-peptides containing an Arg(Tos) residue with HF. NMR and fluorescence experiments showed that by-products were compounds in which a pyrenyl group was modified with a tosyl group(s). The side reaction was little suppressed by the addition of usual scavengers such as anisole, 1,2-ethanedithiol, thioanisole and p-cresol. Under the conditions used for the cleavage of N alpha-Boc group, i.e., trifluoroacetic acid or 4 M HCl in dioxane, the pyrenylalanine residue was stable. No side reaction was, furthermore, observed in the reductive cleavage with sodium in liquid ammonia. These results suggest that the side reaction may be due to an electrophilic attack of tosyl cations to the electron-rich pyrenyl group in the pyrenylalanine residue under the HF-mediated acidic conditions.
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Affiliation(s)
- H Nakamura
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
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28
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Lee S, Yoshida M, Mihara H, Aoyagi H, Kato T, Yamasaki N. The spectroscopic analysis for binding of amphipathic and antimicrobial model peptides containing pyrenylalanine and tryptophan to lipid bilayer. BIOCHIMICA ET BIOPHYSICA ACTA 1989; 984:174-82. [PMID: 2765546 DOI: 10.1016/0005-2736(89)90213-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The binding of basic amphipathic fluorescent peptides to lipid bilayers was studied in relation to their antimicrobial activity. Four fluorescent peptides containing pyrenylalanine or tryptophan in an amphipathic basic peptide (4(4] consisting of four repeated units of tetrapeptide, -L-Leu-L-Ala-L-Arg-L-Leu-, were found to have antimicrobial activities against Gram-positive bacteria and to take conformations with fairly high alpha-helical content both in aqueous solutions and liposomes. The fluorescence spectroscopic data suggested that the pyrenylalanine-peptide existed as a monomer in methanol or liposomes but as an oligomer in aqueous solutions to form an excimer between pyrenylalanyl residues. Upon binding with liposomes, the fluorescence spectra of the tryptophan-containing peptide shifted to a shorter wavelength, indicating the change in the state of tryptophan from hydrophilic environment to hydrophobic one. The analytical data for the quenching of tryptophan fluorescence by I- anion suggest that the tryptophan residue in the peptide is not deeply buried in the hydrophobic core of the bilayers. Based on these findings, it is suggested that the peptides may interact with liposomes in such a manner that they lie parallel to the surface of the lipid bilayers with their hydrophobic regions shallowly in the amphipathic moiety of the bilayers.
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Affiliation(s)
- S Lee
- Laboratory of Biochemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
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29
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Vekshin N. Exciplexes of pyrene with indole and diethylaniline in liposomes and biomembranes. Anal Chim Acta 1989. [DOI: 10.1016/s0003-2670(00)82667-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Imabayashi SI, Kitamura N, Tazuke S. Effects of bulky substituents on intramolecular exciplex formation in 1-(1-pyrenyl)-3-N,N-dimethylaminophenylpropane derivatives. Chem Phys Lett 1988. [DOI: 10.1016/0009-2614(88)80126-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Chiral discrimination in the intermolecular excimer formation of N-acetyl-1-pyrenylalanine methyl ester in chiral solvents. J Photochem Photobiol A Chem 1988. [DOI: 10.1016/1010-6030(88)80055-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Mihara H, Lee S, Shimohigashi Y, Aoyagi H, Kato T, Izumiya N, Costa T. Synthesis, receptor binding activity and fluorescence property of fluorescent enkephalin analogs containing L-1-pyrenylalanine. INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 1987; 30:605-12. [PMID: 2830198 DOI: 10.1111/j.1399-3011.1987.tb03371.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The novel fluorescent amino acid, L-1-pyrenylalanine (L-Pya), was prepared by the asymmetric hydrogenation of cyclic dehydrodipeptide. Fluorescent enkephalins containing one or two Pya residues at position 1,4 or 5 of [D-Ala2, Leu5]enkephalin were synthesized by the solution method. Mono-Pya-enkephalins showed strong fluorescence intensities and potent binding affinities with specificity and selectivity for opiate receptors. However, di-Pya-enkephalins showed markedly decreased receptor binding affinities. These results indicate that the incorporation of two Pya residues into enkephalin makes the peptide unable to interact with the opiate receptors, although introduction of one Pya residue is effective to elicit a specific receptor interaction. Di-Pya-enkephalins showed intramolecular excimer spectra, indicating that the peptides are able to take possible folded conformations.
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Affiliation(s)
- H Mihara
- Laboratory of Biochemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
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33
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Goedeweeck R, Ruttens F, López-Arbeloa F, De Schryver FC. Influence of hydrogen bonding, main chain-side chain interactions, and protecting groups on the excimer formation of bis(pyrenylalanine) peptides. Biopolymers 1987. [DOI: 10.1002/bip.360261103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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34
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Morrison H. Photoactivation of distal functional groups in polyfunctional molecules. ACTA ACUST UNITED AC 1987. [DOI: 10.1007/bf03156137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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35
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Tanaka JA, Masuhara H, Mataga N, Goedeweeck R, De Schryver FC. Absorption Spectra of N-Acetyl-bis(1-pyrenylalanine)methylester in the Excited and Ionic States. Polym J 1986. [DOI: 10.1295/polymj.18.331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Ruttens F, oedeweeck R, Lopez-Arbeloa F, Schryver FC. INTRAMOLECULAR EXCIPLEX FORMATION IN Nα-ACETYL-1-PYRENYLALANYL-1-METHYLTRYPTOPHAN METHYLESTER. Photochem Photobiol 1985. [DOI: 10.1111/j.1751-1097.1985.tb01579.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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