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Positive variation of the MRI signal via intramolecular inclusion complexation of a C-2 functionalized β-cyclodextrin

Abstract : The synthesis of a new contrast agent based on a β-cyclodextrin scaffold and bearing a flexible lipophilic spacer arm on its secondary face is reported. Intermolecular host–guest inclusion complexes were known to undergo an enhancement of the contrast imaging. We extend this concept to intramolecular complexation. Inter- and intramolecular interactions are compared by NMR spectroscopy, circular dichroism and magnetic resonance imaging using hydrocinnamic acid and adamantane carboxylic acid as external guests. This positive variation of the observed relaxivity is a key element of new strategies aiming at developing smart molecular MRI probes.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-01928067
Contributor : Aurélien Lemercier <>
Submitted on : Tuesday, November 20, 2018 - 12:00:37 PM
Last modification on : Monday, July 27, 2020 - 3:17:58 PM

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Ibrahim Zgani, Hussein Idriss, Cécile Barbot, F. Djedaini-Pilard, Samuel Petit, et al.. Positive variation of the MRI signal via intramolecular inclusion complexation of a C-2 functionalized β-cyclodextrin. Organic and Biomolecular Chemistry, Royal Society of Chemistry, 2017, 15 (3), pp.564-569. ⟨10.1039/C6OB02583H⟩. ⟨hal-01928067⟩

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