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Joseph V, Levine M. Ronald C.D. Breslow (1931-2017): A career in review. Bioorg Chem 2021; 115:104868. [PMID: 34523507 DOI: 10.1016/j.bioorg.2021.104868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/23/2021] [Indexed: 11/26/2022]
Abstract
Reviewed herein are key research accomplishments of Professor Ronald Charles D. Breslow (1931-2017) throughout his more than 60 year research career. These accomplishments span a wide range of topics, most notably physical organic chemistry, medicinal chemistry, and bioorganic chemistry. These topics are reviewed, as are topics of molecular electronics and origin of chirality, which combine to make up the bulk of this review. Also reviewed briefly are Breslow's contributions to the broader chemistry profession, including his work for the American Chemical Society and his work promoting gender equity. Throughout the article, efforts are made to put Breslow's accomplishments in the context of other work being done at the time, as well as to include subsequent iterations and elaborations of the research.
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Affiliation(s)
- Vincent Joseph
- Department of Chemical Sciences, Ariel University, Israel
| | - Mindy Levine
- Department of Chemical Sciences, Ariel University, Israel.
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2
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Grachev MK, Terekhova IV, Shipilov DA, Kutyasheva NV, Emelianova EY. Dimeric (Oligomeric) Derivatives of Cyclodextrins as a New Class of Supramolecular Systems: Their Synthesis and Inclusion Complexes. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1068162020010021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Shityakov S, Roewer N, Broscheit JA, Förster C. In silico models for nanotoxicity evaluation and prediction at the blood-brain barrier level: A mini-review. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.comtox.2017.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Novel β-cyclodextrin-[60]fullerene conjugates based on Huisgen [2+3] cycloaddition: synthesis and dyes complexation properties. J INCL PHENOM MACRO 2015. [DOI: 10.1007/s10847-015-0585-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Guo H, Yang F, Zhang Y, Di X. Facile Synthesis of Mono- and Polytopicβ-Cyclodextrin Aromatic Aldehydes by Click Chemistry. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.963400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Trotta F, Zanetti M, Cavalli R. Cyclodextrin-based nanosponges as drug carriers. Beilstein J Org Chem 2012; 8:2091-9. [PMID: 23243470 PMCID: PMC3520565 DOI: 10.3762/bjoc.8.235] [Citation(s) in RCA: 193] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 11/06/2012] [Indexed: 01/03/2023] Open
Abstract
Cyclodextrin-based nanosponges, which are proposed as a new nanosized delivery system, are innovative cross-linked cyclodextrin polymers nanostructured within a three-dimensional network. This type of cyclodextrin polymer can form porous insoluble nanoparticles with a crystalline or amorphous structure and spherical shape or swelling properties. The polarity and dimension of the polymer mesh can be easily tuned by varying the type of cross-linker and degree of cross-linking. Nanosponge functionalisation for site-specific targeting can be achieved by conjugating various ligands on their surface. They are a safe and biodegradable material with negligible toxicity on cell cultures and are well-tolerated after injection in mice. Cyclodextrin-based nanosponges can form complexes with different types of lipophilic or hydrophilic molecules. The release of the entrapped molecules can be varied by modifying the structure to achieve prolonged release kinetics or a faster release. The nanosponges could be used to improve the aqueous solubility of poorly water-soluble molecules, protect degradable substances, obtain sustained delivery systems or design innovative drug carriers for nanomedicine.
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Affiliation(s)
- Francesco Trotta
- Dipartimento di Chimica. University of Torino, Via Pietro Giuria 7 10125 Torino, Italy
| | - Marco Zanetti
- Dipartimento di Chimica. University of Torino, Via Pietro Giuria 7 10125 Torino, Italy
| | - Roberta Cavalli
- Dipartimento di Scienza e Tecnologia del Farmaco. University of Torino, Via Pietro Giuria 9 10125 Torino, Italy
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Wang A, Li W, Zhang P, Ling CC. Synthesis of a Novel Class of Cyclodextrin-Based Nanotubes. Org Lett 2011; 13:3572-5. [DOI: 10.1021/ol201065u] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aixia Wang
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Wenling Li
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Ping Zhang
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Chang-Chun Ling
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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Rawal GK, Zhang P, Ling CC. Controlled Synthesis of Linear α-Cyclodextrin Oligomers Using Copper-Catalyzed Huisgen 1,3-Dipolar Cycloaddition. Org Lett 2010; 12:3096-9. [DOI: 10.1021/ol101119p] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Girish K. Rawal
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500, University Drive NW, Calgary, Alberta T2N 1N4 Canada
| | - Ping Zhang
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500, University Drive NW, Calgary, Alberta T2N 1N4 Canada
| | - Chang-Chun Ling
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Calgary, 2500, University Drive NW, Calgary, Alberta T2N 1N4 Canada
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Wang ZS, Lu GY, Guo X, Wu HM. Synthesis of Calix[4]arene Derivatives Containing a Nucleobase and their Interaction with Complementary Nucleosides at the Air–Water Interface. Supramol Chem 2010. [DOI: 10.1080/1061027031000075700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Zhen-Sheng Wang
- a Department of Chemistry , Institute of Chemistry Biology, Nanjing University , 210093, Nanjing, P. R. China
| | - Guo-Yuan Lu
- a Department of Chemistry , Institute of Chemistry Biology, Nanjing University , 210093, Nanjing, P. R. China
| | - Xun Guo
- a Department of Chemistry , Institute of Chemistry Biology, Nanjing University , 210093, Nanjing, P. R. China
| | - Hou-Ming Wu
- b State Key Laboratory of Bio-organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences, 200032, Shanghai, P. R. China
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Mourer M, Hapiot F, Tilloy S, Monflier E, Menuel S. Easily Accessible Mono- and Polytopic β-Cyclodextrin Hosts by Click Chemistry. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800728] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mallard-Favier I, Blach P, Cazier F, Delattre F. Efficient synthesis of a fluorescent tripod detection system for pesticides by microwave-assisted click chemistry. Carbohydr Res 2008; 344:161-6. [PMID: 18992875 DOI: 10.1016/j.carres.2008.10.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Revised: 10/08/2008] [Accepted: 10/14/2008] [Indexed: 11/25/2022]
Abstract
A new tripod molecule containing an aromatic core bearing three peracetylated cyclodextrins was synthesized via a microwave-assisted Huisgen 1,3-dipolar cycloaddition and was studied by fluorescence spectroscopy. The photoluminescent properties of complexation phenomena with different pesticides were evaluated in acetonitrile. Fluorescence titrations have been performed to calculate binding constants, sensitivity factors, and limit of detection of the resulting complexes. 2D NMR experiments confirmed the inclusion of pesticide in the hydrophobic cavity of the macrocycle and validated the supramolecular association responsible for the quenching of the fluorescence.
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Affiliation(s)
- Isabelle Mallard-Favier
- Laboratoire de Synthèse Organique et Environnement, E.A. 2599, Université du Littoral Côte d'Opale, 145 Av. M. Schumann, 59140 Dunkerque, France
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Mononuclear rearrangements of heterocycles in water/β-CD: information on the real site of reaction from structural modifications of substrates and from proton concentration dependence of the reactivity. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.084] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Benniston AC, Gunning P, Peacock RD. Synthesis and binding properties of hybrid cyclophane-azamacrocyclic receptors. J Org Chem 2005; 70:115-23. [PMID: 15624913 DOI: 10.1021/jo048621o] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three new azamacrocyclic-cyclophane hybrid receptors L(1), L(2), and L(3) have been synthesized that incorporate either 1,4,7,10-tetraazacyclododecane (cyclen) or 1,4,7-triazacyclononane (tacn) unit(s) tethered via a short amidic spacer to an electron donor and a H-bonding crown ether polycycle. The crown ether is designed to act as a host toward biologically relevant guests, whereas the macrocycle can coordinate a zinc(II) or a copper(II) ion. The pK(a) of this bound water in the zinc(II) complex of L(1) and L(2) is approximately 7.5. Isothermal calorimetry experiments carried out on [ZnL(1)(L2)(OH(2))](CF(3)SO(3))(2) and [Zn(2)L(2)(OH(2))(2)](CF(3)SO(3))(4) in buffered water (pH 7.4) at 25 degrees C show that the host strongly binds a series of phosphate derivatives. In comparison, the complex [CuL(3)(OH(2))(2)](CF(3)SO(3))(2) is a poor receptor toward phosphate substrates.
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Affiliation(s)
- Andrew C Benniston
- Molecular Photonics Laboratory, School of Natural Sciences (Chemistry), Bedson Building, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK.
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Tang S, Kong L, Ou J, Liu Y, Li X, Zou H. Application of cross-linked β-cyclodextrin polymer for adsorption of aromatic amino acids. J Mol Recognit 2005; 19:39-48. [PMID: 16265676 DOI: 10.1002/jmr.756] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Beta-cyclodextrin (beta-CyD) was cross-linked by hexamethylene diisocyanate and the polymer was investigated for adsorption of aromatic amino acids (AAA) from phosphate buffer. High adsorption rates were observed at the beginning and the adsorption equilibrium was then gradually achieved in about 45 min. The adsorption of AAA decreased with the increase of initial concentration and also temperature. Under the same conditions, the adsorption efficiencies of AAA were in the order of L-tryptophan (L-Trp) > L-phenylalanine (L-Phe) > L-tyrosine (L-Tyr). Much higher adsorption values, up to 52.4 and 43.0 mg/g for L-Trp and L-Phe, respectively, at 50 mmol/L and 3.2 mg/g for L-Tyr at 2 mmol/L, were obtained with the beta-CyD polymer at 37 degrees C. It was shown that the adsorption of AAA on the beta-CyD polymer was consistent with the Freundlich isotherm equation. The adsorption of mixed aromatic amino acids and branched-chain amino acids (BCAA) showed that AAA were preferentially adsorbed with adsorption efficiencies 10-24%, while those of BCAA were lower than 2%. It seems that the structure and hydrophobicity of amino acid molecules are responsible for the difference in adsorption, by influencing the strength of interactions between amino acid molecule and the polymer.
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Affiliation(s)
- Shouwan Tang
- National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
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Faiz JA, Spencer N, Pikramenou Z. Acetylenic cyclodextrins for multireceptor architectures: cups with sticky ends for the formation of extension wires and junctions. Org Biomol Chem 2005; 3:4239-45. [PMID: 16294253 DOI: 10.1039/b508607h] [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: 11/21/2022]
Abstract
A mono-6-O-propargyl permethylated beta-cyclodextrin, 3, has been prepared by two synthetic routes as a versatile building block for the construction of cyclodextrin dimers and trimers with a core junction which is potentially electron conducting. Glaser-Hay coupling of 3 gave beta-cyclodextrin dimer 6, and Pd(0)-catalysed coupling allowed the preparation of a cyclodextrin dimer with a 1,4-phenylene bridge, 7, and a cyclodextrin trimer based on a 1,3,5-trisubstituted benzene, 8. All compounds have been fully characterised, and in particular, detailed analysis by 2D NMR spectroscopic techniques has provided useful insight into the identities of the compounds. The detailed full characterisation of mono-3,6-anhydro-heptakis(2,3-O-methyl)-hexakis(6-O-methyl)-beta-cyclodextrin, 5, is also described. Product 5 is formed during the methylation of compound 3, and its formation was found to be sensitive to the reaction conditions. The absorption and fluorescence spectra of the phenylene-bridged dimer 7 and trimer 8 are also reported. They show different properties of the excited state based on the different electronic coupling imposed by the phenylene core.
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Affiliation(s)
- Jonathan A Faiz
- School of Chemistry, The University of Birmingham, Edgbaston, B15 2TT, UK
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Yuan DQ, Immel S, Koga K, Yamaguchi M, Fujita K. The first successful crystallographic characterization of a cyclodextrin dimer: efficient synthesis and molecular geometry of a doubly sulfur-bridged beta-cyclodextrin. Chemistry 2003; 9:3501-6. [PMID: 12898677 DOI: 10.1002/chem.200204310] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Beta-cyclodextrin is transannularly disulfonylated at the 6(A)- and 6(B)-positions, and then converted to the corresponding 6(A),6(B)-diiodide and 6(A),6(B)-dithiol. Cross-coupling of the latter two species yields a single head-to-head-coupled beta-cyclodextrin dimer 5 with two sulfur linkers at adjacent 6-methylene carbons. NMR and X-ray analysis revealed the trans-type ("aversive") linkage of both beta-cyclodextrin units. In the solid-state structure of 5.5 MeOH.23 H(2)O, the undistorted cyclodextrin macrocycles feature almost parallel ring planes pointing away from each other, leaving 5 with a "handcuff-like" appearance of approximate C(2) symmetry. This work represents the first successful crystallographic study on a cyclodextrin dimer.
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Affiliation(s)
- De-Qi Yuan
- Faculty of Pharmaceutical Sciences, Nagasaki University Bunkyo-machi, Nagasaki 852-8521, Japan
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Abstract
beta-cyclodextrin-based receptors were synthesized and tested for their ability to induce a helical fold in peptides bearing hydrophobic amino acid residues in the i, i+11- or i, i+14-positions. Circular dichroism experiments revealed that a dimeric beta-cylodextrin receptor synthesized from a [1,1'-biphenyl]-4,4'-dithiol core demonstrated an ability to fold a designed peptide bearing the artificial amino acid L-p-t-butylphenylalanine in the i, i+11-positions, while other dimeric and monomeric receptors failed to do so. Titration studies were performed using both circular dichroism and calorimetry, the analysis of which yielded an apparent K(a) on the order of 10(4)-10(5) M(-1). However, no evidence could be obtained for helical folding with a peptide carrying tryptophan residues in place of the p-t-butylphenylalanine units. Our studies suggest that receptors of this type may be useful in molecular recognition of hydrophobic, already alpha-helical peptides in aqueous solution.
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Affiliation(s)
- David Wilson
- Department of Chemistry, Columbia University, New York, NY 10027, USA
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Yang J, Gabriele B, Belvedere S, Huang Y, Breslow R. Catalytic oxidations of steroid substrates by artificial cytochrome p-450 enzymes. J Org Chem 2002; 67:5057-67. [PMID: 12126389 DOI: 10.1021/jo020174u] [Citation(s) in RCA: 147] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalysts comprising manganese-porphyrins carrying cyclodextrin binding groups are able to perform hydroxylations with substrate selectivity and regio- and stereoselectivity and high catalytic turnovers. The geometries of the catalyst/substrate complexes override intrinsic substrate reactivities, permitting attack on geometrically accessible saturated carbons of steroids in the presence of secondary carbinol groups and carbon-carbon double bonds, as in enzymatic reactions. Selective hydroxylations of steroid carbon 9 positions are of particular practical interest.
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Affiliation(s)
- Jerry Yang
- Department of Chemistry, Columbia University, New York, New York 10027, USA
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