Chinese Journal of Magnetic Resonance ›› 2009, Vol. 26 ›› Issue (4): 457-465.

• Articles • Previous Articles     Next Articles

Enantiomeric Discrimination of D/L-10-Camphoric Sulfonic Acid by  β-Cyclodextrins Studied by NMR Spectroscopy

  

  1. 1.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,  Wuhan Center for Magnetic Resonace,(Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences), Wuhan 430071, China; 2.Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; 3.School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, Chin
  • Received:2009-05-30 Revised:2009-06-10 Online:2009-12-05 Published:2009-12-05
  • Supported by:

    国家自然科学基金资助项目(10474116,10674152)

Abstract:

Chiral recognition of β-cyclodextrin (β-CD) to chiral drug D/L-10-camphoric sulfonic acid (CSA) was investigated using high resolution liquidstate NMR spectroscopy. It was found that CSA can enter the hydrophobic cavity of β-CD and interact with it chirally. The results of 2D ROESY experiments suggested that the enantiomers of CSA enter into the hydrophobic cavity of β-CD from its wide brim, not from its narrow brim. Stoichiometry result showed a 1∶1 complex between the host and the guest. It was demonstrated that β-CD can be used to discriminate the enantiomers of CSA.

Key words: NMR, chiral recognition, β-cyclodextrin, camphoric sulfonic acid

CLC Number: