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Hu L, Liu X, Liao X. Nickel-Catalyzed Methylation of Aryl Halides with Deuterated Methyl Iodide. Angew Chem Int Ed Engl 2016; 55:9743-7. [PMID: 27381725 DOI: 10.1002/anie.201604406] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 05/31/2016] [Indexed: 01/28/2023]
Abstract
A nickel-catalyzed methylation of aryl halides with cheap and readily available CH3 I or CD3 I is described. The reaction is applicable to a wide range of substrates and allows installation of a CD3 group under mild reaction conditions without deuterium scrambling to other carbon atoms. Initial mechanistic studies on the stoichiometric and catalytic reactions of the isolated [(dppp)Ni(C6 H4 -4-CO2 Et)Br] [dppp=1,3-bis(diphenylphosphanyl)propane] suggest that a Ni(0) /Ni(II) catalytic cycle is favored.
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Affiliation(s)
- Lu Hu
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University, Beijing, 100084, China
| | - Xin Liu
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University, Beijing, 100084, China
| | - Xuebin Liao
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University, Beijing, 100084, China.
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Hu L, Liu X, Liao X. Nickel-Catalyzed Methylation of Aryl Halides with Deuterated Methyl Iodide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604406] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lu Hu
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; Tsinghua University; Beijing 100084 China
| | - Xin Liu
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; Tsinghua University; Beijing 100084 China
| | - Xuebin Liao
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; Tsinghua University; Beijing 100084 China
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Kumar S, Ludwig K, Schade B, von Berlepsch H, Papp I, Tyagi R, Gulia M, Haag R, Böttcher C. Introducing Chirality into Nonionic Dendritic Amphiphiles and Studying Their Supramolecular Assembly. Chemistry 2016; 22:5629-36. [PMID: 26961861 DOI: 10.1002/chem.201504504] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 12/22/2022]
Abstract
Chiral head groups have been introduced into water-soluble hydroxyl-terminated nonionic amphiphiles and the impact of the head group stereochemistry on the supramolecular ultrastructures has been studied. Enantiomeric isomers were compared with the achiral meso form and the racemic mixture by means of cryogenic transmission electron microscopy and circular dichroism spectroscopy. Structurally, all amphiphiles are composed of the first-generation hydrophilic polyglycerol head group coupled to a single hydrophobic hexadecyl chain through an amide linkage and diaromatic spacer. The enantiomers aggregate to form twisted ribbons with uniform handedness, whereas the meso stereoisomer and racemic mixture produce elongated assemblies, namely, tubules and platelets, but without a chiral ultrastructure. Simulations on the molecular packing geometries of the stereoisomers indicate different preferential assembly routes that explain the individual supramolecular aggregation behavior.
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Affiliation(s)
- Sumit Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal-, 131039, Haryana, India.,Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195, Berlin, Germany
| | - Boris Schade
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195, Berlin, Germany
| | - Hans von Berlepsch
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195, Berlin, Germany
| | - Ilona Papp
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Rahul Tyagi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Monika Gulia
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal-, 131039, Haryana, India
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195, Berlin, Germany.
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Wasserthal L, Schade B, Ludwig K, Böttcher C, Hirsch A. Hierarchically ordered self-assembly of amphiphilic bifullerenes. Chemistry 2014; 20:5961-6. [PMID: 24805275 PMCID: PMC4744996 DOI: 10.1002/chem.201400153] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Indexed: 11/12/2022]
Abstract
A series of novel functionalised dumbbell-shaped bifullerenes in which two [5.0] pentakis-adducts of C60 are covalently connected by cyclic bismalonates were synthesised. These dimeric compounds, carrying various combinations of hydrophilic and hydrophobic addends, self-assemble in aqueous solution towards supramolecular architectures of different structural complexity as observed by cryogenic transmission electron microscopy (cryo-TEM). The detailed analysis of the image data revealed an unprecedented hierarchical aggregation behaviour. Whereas completely hydrophilic substituted bifullerenes formed profoundly monodisperse populations of small oligomeric elementary micelles consisting of only three or four bifullerene molecules in a supposedly bent conformation, their amphiphilic equivalents underwent a hierarchical two-step assembly process towards larger spherical and even rod-like structures. The data suggest that the hierarchical assembly process is driven by hydrophobic interactions of preformed tetrameric elementary micelles.
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Affiliation(s)
- Lennard Wasserthal
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg, Henkestr. 42, 91054 Erlangen (Germany)
| | - Boris Schade
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, 14195 Berlin (Germany)
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, 14195 Berlin (Germany)
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, 14195 Berlin (Germany)
| | - Andreas Hirsch
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg, Henkestr. 42, 91054 Erlangen (Germany)
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Wulff G, Lohmar E. Enzyme-Analogue Built Polymers XII Specific Binding Effects in Chiral Microcavities of Crosslinked Polymers. Isr J Chem 2013. [DOI: 10.1002/ijch.197900043] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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6
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Schönherr H, Cernak T. Profound Methyl Effects in Drug Discovery and a Call for New CH Methylation Reactions. Angew Chem Int Ed Engl 2013; 52:12256-67. [DOI: 10.1002/anie.201303207] [Citation(s) in RCA: 569] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Indexed: 11/10/2022]
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Schönherr H, Cernak T. Ausgeprägte Methyleffekte in der Wirkstoff-Forschung und der Bedarf an neuen C-H-Methylierungsreaktionen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303207] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Rätzsch M, Jacobasch HJ, Freitag KH. Origin, characterization and technological effects of interaction forces proceeding from polymer surfaces. Adv Colloid Interface Sci 1990. [DOI: 10.1016/0001-8686(90)80007-m] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Greig NH, Genka S, Daly EM, Sweeney DJ, Rapoport SI. Physicochemical and pharmacokinetic parameters of seven lipophilic chlorambucil esters designed for brain penetration. Cancer Chemother Pharmacol 1990; 25:311-9. [PMID: 2306790 DOI: 10.1007/bf00686229] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This report describes the physicochemical and pharmacokinetic parameters of seven chlorambucil esters, which were compared with those of chlorambucil. These esters were designed as chlorambucil prodrugs to increase the brain penetration and concentration vs time profile of chlorambucil within the CNS for potential treatment of brain tumors. They include four aliphatic esters from one to eight carbon chains in length (chlorambucil-methyl, -propyl, -hexyl, and -octyl esters) and three aromatic esters, including the phenylmethyl, phenylethyl and prednisolone ester of chlorambucil, prednimustine. The esters were lipophilic and possessed log octanol:water partition coefficients (log P values) that ranged from 4.05 to greater than 8.0. All retained alkylating activity, which was reduced compared with that of chlorambucil. In addition, all were metabolized in vivo in the rat to yield chlorambucil alone. Measurement of the in vitro rate of ester hydrolysis of the compounds to yield chlorambucil in rat plasma demonstrated that short-chain aliphatic and aromatic chlorambucil esters were rapidly broken down to their parent compound. The plasma half-lives of the compounds increased with the increasing length and complexity of their ester chain. This may have been related to an increase in the binding of the long-chain esters to plasma proteins, protecting the ester from nonspecific plasma esterases, and to a reduced affinity of plasma esterases to these esters. Pharmacokinetic analysis of chlorambucil-hexyl, -octyl, and -prednisolone esters by HPLC demonstrated that following their intravenous administration in the rat (in doses equivalent to equimolar chlorambucil, 10 mg/kg), they yielded only low concentrations of active compounds in plasma and brain. The brain:plasma ratio of these was low and similar to that of chlorambucil, and no ester demonstrated anticancer activity superior to that obtained after the administration of equimolar chlorambucil (5 mg/kg i.v., days 1-5) against brain-sequestered Walker 256 carcinosarcoma in the rat.
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Affiliation(s)
- N H Greig
- Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892
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15
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Yamamoto H, Nishida A, Hayakawa T, Nishi N, Yamamoto R. Chiral interaction of sequential lysine polypeptides with methyl orange. Effects of distance between lysine residues and hydrophobic side chains. Colloid Polym Sci 1986. [DOI: 10.1007/bf01500753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Nemetschek T, Jelinek K, Knörzer E, Mosler E, Nemetschek-Gansler H, Riedl H, Schilling V. Transformation of the structure of collagen. A time-resolved analysis of mechanochemical processes using synchrotron radiation. J Mol Biol 1983; 167:461-79. [PMID: 6864805 DOI: 10.1016/s0022-2836(83)80345-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Mechanochemically induced molecular transformations of collagen fibres were analysed using time-resolved small-angle diffraction spectra and histomechanical measurements. In particular, the influence of aqueous and methanolic perchlorate solutions was examined. According to a transformation continuing from the periphery towards the centre, the macroscopic contraction that is completed less than five minutes after incubation with perchlorate is caused by peripherally transformed fibrils only, whereas the centrally situated fibrils first undergo an accordion-like folding, but after more than 20 minutes are transformed similarly. The triple-helical transformation is preceded by a structure-breaking effect on structural water that can be monitored in time-resolved diffraction spectra. The combined loss of meridional low-angle reflections and cross-striated fibrils in micrographs is irreversible. By dialysis of colloidally dissolved collagen against a solution of ATP, however, segment-long spacing aggregates are obtained. Under isometric conditions, an instantaneous transformation of intermittent regions leads to an increase in the long period of adjacent, still structured regions of the same fibril that is correlated with a delayed increase in tension in the fibre. Increase of tension under isometric conditions as well as the flow-properties of a fibre relaxed in perchlorate are interpreted in terms of the parallel sliding of subunits of varying lengths, which has been demonstrated by diffraction analysis.
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17
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Miklautz H, Riemann J. Über das Assoziationsverhalten des neuen Röntgenkontrastmittels Iotasul mit zwei wäßrigen Lösungsphasen. Arch Pharm (Weinheim) 1982. [DOI: 10.1002/ardp.19823151203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Perineau F, Molinier J, Gaset A. Étude des isothermes d'Adsorption de surfactants ioniques et non ionique sur des fibres de laine carbonisée. CAN J CHEM ENG 1981. [DOI: 10.1002/cjce.5450590110] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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H-bond-state and Solubility in Aqueous Systems. ACTA ACUST UNITED AC 1981. [DOI: 10.1007/978-94-015-7658-1_29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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20
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Perineau F, Molinier J, Gaset A. Étude des Isothermes d'Adsorption de Surfactants Ioniques et non Ionique sur des Fibres de Laine Carbonisée. CAN J CHEM ENG 1980. [DOI: 10.1002/cjce.5450580611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Vohland HW, Streichert B. [On the toxicology of carbromal. IV. Binding of carbromal and its hypnotically active metabolites to human plasma proteins (author's transl)]. Arch Toxicol 1978; 41:69-77. [PMID: 31154 DOI: 10.1007/bf00351771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The binding of carbromal and its metabolites bromoethylbutyramide and ethylbutyrylurea to human plasma proteins was investigated in vitro by use of Sephadex-gelfiltration, equilibrium dialysis and ultrafiltration. No differences appeared in the binding characteristics of human plasma and of human albumine. In a concentration range between 3.10-8 and 1.5.10-6 moles/ml about 40% of the carbromal, and in a concentration range between 3.10-8 and 1.10-5 moles/ml about 30% of the bromoethylbutyramide are bound to plasma proteins. Proteinbinding of ethylbutyrylurea was found to be less than 5%. The binding constants, Ka, to human albumine and the binding energies deltaF 0 were found to be in the range of 0.5--1.2.10(3) L/Mol and 1.7--4.4 kcal/Mol, respectively. Protein binding of carbromal, bromoethylbutyramide, their chlorinated analgous compounds, chloroethylbutyrylurea and chloroethylbutyramide, and of ethylbutyrylurea is strongly correlated to the partition coefficients of these compounds between n-octanol and water, indicating that the intensity of proteinbinding depends on the hydrophobic character of the substances tested.
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22
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23
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Chromatographic investigation into the interaction between proteins and polymer matrices I. Agarose gels with substituents of different length and hydrophobicity. Chromatographia 1977. [DOI: 10.1007/bf02297864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Pörschke D. Elementary steps of base recognition and helix-coil transitions in nucleic acids. MOLECULAR BIOLOGY, BIOCHEMISTRY, AND BIOPHYSICS 1977; 24:191-218. [PMID: 904614 DOI: 10.1007/978-3-642-81117-3_5] [Citation(s) in RCA: 87] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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25
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Ikeda O, Matsuda Y, Yoneyama H, Tamura H. An effect of hydration entropy on adsorption of various alkylammonium ions at the mercury/water interface. Electrochim Acta 1976. [DOI: 10.1016/0013-4686(76)85142-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Glover GI, Mariano PS, Cheowtirakul S. Separations of Diastereomeric Organic Acids on Sephadex G-10. ACTA ACUST UNITED AC 1976. [DOI: 10.1080/01496397608085308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Miklautz H, Riemann J. [The associative behaviour of methylglucamine salts of the dicarboxylic acid dianilides of 3-carboxy-2,4,6-triiodoaniline in aqueous solutions (author's transl)]. Arch Pharm (Weinheim) 1975; 308:760-8. [PMID: 1200792 DOI: 10.1002/ardp.19753081008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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28
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Schalinatus E, Behnke U. Untersuchungen über bittere Peptide aus Casein und Käse. 3. Mitt. Charakterisierung bitterer Peptide und Untersuchungen zur Ausschaltung des Bittergeschmacks. ACTA ACUST UNITED AC 1975. [DOI: 10.1002/food.19750190508] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Höllt V, Teschemacher H. Hydrophobic interactions responsible for unspecific binding of morphine-like drugs. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 1975; 288:163-77. [PMID: 240130 DOI: 10.1007/bf00500524] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The unspecific binding of four narcotic analgesics 3H-dihydromorphine, 14C-morphine, 3H-etorphine and 3H-fentanyl to human albumin, human plasma, rabbit plasma and several tissue homogenates from rabbits was investigated using equilibrium dialysis and ultrafiltration. At a drug concentration of 10(-7) M in human plasma, dihydromorphine is bound to an extent of 14%, morphine to 23%, etorphine to 88% and fentanyl to 70%. These differences in binding are due to different degrees of hydrophobic interaction between the drugs investigated and the plasma or tissue components. The hydrophobic interactions are due to the unionized form of the drugs. The ionized form is bound to a negligible extent with all four compounds, possibly in part by ionic mechanism. Binding increased with increasing ionic strength of the protein solution, with raising temperature between 0 degrees C and 37 degrees C and with increasing pH values of the protein solution, features which are characteristic of hydrophobic interactions. Scatchard plots of the binding data, from which the total binding constants nk were derived, indicated high concentrations of binding sites compared with drug concentrations found analgesically effective in vivo.
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30
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Simon Z. Spezifische Wechselwirkungen. Intermolekulare Kräfte, sterische Erfordernisse und Molekülgröße. Angew Chem Int Ed Engl 1974. [DOI: 10.1002/ange.19740862203] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Simon Z. Specific Interactions. Intermolecular Forces, Steric Requirements, and Molecular Size. ACTA ACUST UNITED AC 1974. [DOI: 10.1002/anie.197407191] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Inoue H, Kuriyama K, Ono T, Okada Y. Circular dichroism and sedimentation studies on the reconstitution of tobacco mosaic virus. Arch Biochem Biophys 1974; 165:34-45. [PMID: 4441077 DOI: 10.1016/0003-9861(74)90138-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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33
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Quast U, Engel J, Heumann H, Krause G, Steffen E. Kinetics of the interaction of bovine pancreatic trypsin inhibitor (Kunitz) with alpha-chymotrypsin. Biochemistry 1974; 13:2512-20. [PMID: 4857588 DOI: 10.1021/bi00709a600] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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34
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Proton chemical shifts of water in aqueous triethylenediamine: Cosphere model and temperature dependence. J SOLUTION CHEM 1974. [DOI: 10.1007/bf00646475] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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Kinetic Studies of the Binding of Bovine Basic Pancreatic Trypsin Inhibitor to α-Chymotrypsin. BAYER-SYMPOSIUM 1974. [DOI: 10.1007/978-3-642-87966-1_46] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Mollay C, Kreil G. Fluorometric measurements on the interaction of melittin with lecithin. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 316:196-203. [PMID: 4582443 DOI: 10.1016/0005-2760(73)90009-x] [Citation(s) in RCA: 80] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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39
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40
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Ullmann E, Thoma K, Lippold BC. [Binding of mechanism of nicotinic acid esters to homologous polyethylene glycol fat alcohol ethers. 21. Effects of adjuvants in the preparation of drugs]. Arch Pharm (Weinheim) 1972; 305:797-802. [PMID: 4663577 DOI: 10.1002/ardp.19723051102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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41
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Snell CR, Fasman GD. Conformational studies on copolymers of L-lysine and L-leucine: circular dichroism and potentiometric titration studies. Biopolymers 1972; 11:1723-44. [PMID: 5056090 DOI: 10.1002/bip.1972.360110817] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Pörschke D, Eggers F. Thermodynamics and kinetics of base-stacking interactions. EUROPEAN JOURNAL OF BIOCHEMISTRY 1972; 26:490-8. [PMID: 5025929 DOI: 10.1111/j.1432-1033.1972.tb01791.x] [Citation(s) in RCA: 113] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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44
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Krieglstein J, Meiler W, Staab J. Hydrophobic and ionic interactions of phenothiazine derivatives with bovine serum albumin. Biochem Pharmacol 1972; 21:985-97. [PMID: 5064735 DOI: 10.1016/0006-2952(72)90403-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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45
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Beeck R, Braun W, Damm KH, Erttmann R, Gerhardt T. [The effect of some drugs on the protein binding of phenol red and digitoxin]. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 1972; 275:277-87. [PMID: 4265887 DOI: 10.1007/bf00500056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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46
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Ney KH. Voraussage der Bitterkeit von Peptiden aus deren Aminosäurezu-sammensetzung. ACTA ACUST UNITED AC 1971. [DOI: 10.1007/bf01879606] [Citation(s) in RCA: 97] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Demus H, Mehl E. Identification of water-insoluble membrane proteins by immunoelectrophoresis in a solubilizing urea-triton solvent. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 1970. [DOI: 10.1016/0005-2736(70)90089-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Scheler W, Mohr P, Pommerening K, Ehlke J. [Hemoprotein models. The reciprocal actions among poly-(N-vinylimidazole), hemin and cyanide ions]. EUROPEAN JOURNAL OF BIOCHEMISTRY 1970; 13:77-85. [PMID: 5439082 DOI: 10.1111/j.1432-1033.1970.tb00901.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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