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Volumn 73, Issue 8, 2008, Pages 2967-2979

Synthesis, structure, and inclusion capabilities of trehalose-based cyclodextrin analogues (cyclotrehalans)

Author keywords

[No Author keywords available]

Indexed keywords

CYCLODEXTRIN; CYCLOOLIGOSACCHARIDES; HYDROPHOBIC CAVITY; PSEUDOAMIDE SEGMENTS;

EID: 42349095247     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo800048s     Document Type: Article
Times cited : (32)

References (77)
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    • For a comprehensive review on cyclodextrins, see
    • For a comprehensive review on cyclodextrins, see: Szejtli, J. Chem. Rev. 1998, 98, 1743.
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    • Ortiz, Mellet, C.; Defaye, J.; García Fernández, J. M. Chem. Eur. J. 2002, 8, 1982.
    • (d) Ortiz, Mellet, C.; Defaye, J.; García Fernández, J. M. Chem. Eur. J. 2002, 8, 1982.
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    • Reference 4d
    • (d) Reference 4d.
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    • Acetylation of thiourea adducts must be conducted at temperatures lower than 0°C to prevent formation of N- or S-acetyl derivatives. See: García-Moreno, M. I.; Benito, J. M.; Ortiz Mellet, C.; García Fernández, J. M. Tetrahedron: Asymmetry 2000, 11, 161.
    • Acetylation of thiourea adducts must be conducted at temperatures lower than 0°C to prevent formation of N- or S-acetyl derivatives. See: García-Moreno, M. I.; Benito, J. M.; Ortiz Mellet, C.; García Fernández, J. M. Tetrahedron: Asymmetry 2000, 11, 161.
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    • 4 system in statistic reduction of azides; see: Katajisto, J.; Karskela, T.; Heinonen, P.; Lönnberg, H. J. Org. Chem. 2002, 67, 7995.
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    • CCDC-3765 contains the supplementary crystallographic data for 9. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/ retrieving.html (or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, CB2 1EZ, UK; fax: (+44)1223-336-033; or e-mail: deposit@ccdc.cam.ac.uk).
    • CCDC-3765 contains the supplementary crystallographic data for 9. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/ retrieving.html (or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, CB2 1EZ, UK; fax: (+44)1223-336-033; or e-mail: deposit@ccdc.cam.ac.uk).
  • 67
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    • The formation of seven-membered NH⋯O intramolecular hydrogen bonds has already been found to be a dominant structural feature in sugar thioureas, being associated to the E,Z rotameric form. See ref 21b and: García Fernández, J. M, Ortiz Mellet, C, Jiménez Blanco, J. L, Fuentes, J, Diánez, M. J, Estrada, M. D, López-Castro, A, Pérez Garrido, S. Carbohydr. Res. 1996, 286, 55
    • The formation of seven-membered NH⋯O intramolecular hydrogen bonds has already been found to be a dominant structural feature in sugar thioureas, being associated to the E,Z rotameric form. See ref 21b and: García Fernández, J. M.; Ortiz Mellet, C.; Jiménez Blanco, J. L.; Fuentes, J.; Diánez, M. J.; Estrada, M. D.; López-Castro, A.; Pérez Garrido, S. Carbohydr. Res. 1996, 286, 55.
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    • 2+ pair. The absence of complexation in the case of 21 and 23 supports the involvement of the thiocarbonyl sulfur atoms in complex formation. The existence of inclusion phenomena is unlike, anyway, in view of the discussed conformational properties.
    • 2+ pair. The absence of complexation in the case of 21 and 23 supports the involvement of the thiocarbonyl sulfur atoms in complex formation. The existence of inclusion phenomena is unlike, anyway, in view of the discussed conformational properties.
  • 72
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    • The 1:1 complex stoichiometry was confirmed by the continious variation method (Job plot). For a thorough description, see: Connors, K. A. Binding Constants: The Measurement of Molecular Complex Stability; Wiley: Chichester, U.K., 1987.
    • The 1:1 complex stoichiometry was confirmed by the continious variation method (Job plot). For a thorough description, see: Connors, K. A. Binding Constants: The Measurement of Molecular Complex Stability; Wiley: Chichester, U.K., 1987.
  • 73
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    • (b) Job, P. Ann. Chim. 1928, 9, 113.
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    • For a complete survey on complexation thermodynamics of CDs, see
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    • (1998) Chem. Rev , vol.98 , pp. 1875
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    • As a matter of fact, compound 26 behaved as a very efficient AC scavenger in competitive experiments with βCD derivatives, which has been exploited in the design of molecular switchers. See ref 8b
    • As a matter of fact, compound 26 behaved as a very efficient AC scavenger in competitive experiments with βCD derivatives, which has been exploited in the design of molecular switchers. See ref 8b.
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    • Binding constants were obtained at 32°C in phosphate buffered media (10 mM, pH 7.3). Errors are estimated to be in the range of ±15%. Binding isotherms were fitted using the MicroMath Scientist Software.
    • Binding constants were obtained at 32°C in phosphate buffered media (10 mM, pH 7.3). Errors are estimated to be in the range of ±15%. Binding isotherms were fitted using the MicroMath Scientist Software.


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