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NMR Studies of Chiral Recognition by Cyclodextrins

✍ Scribed by Helena Dodziuk; Wiktor Kozminski; Andrzej Ejchart

Publisher
John Wiley and Sons
Year
2004
Weight
57 KB
Volume
35
Category
Article
ISSN
0931-7597

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Chiral recognition of verapamil by cyclo
Chiral recognition of verapamil by cyclodextrins studied with capillary electrophoresis, NMR spectroscopy, and electrospray ionization mass spectrometry
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Capillary electrophoresis (CE) allows the observation of the opposite affinities of the enantiomers of (±)-verapamil [2-isopropyl-2,8-bis(3,4-dimethoxyphenyl)-6-methyl-6-azaoctannitrile, VP] toward ␀-cyclodextrin (␀-CD) and heptakis(2,3,6-tri-Omethyl)-␀-CD (TM-␀-CD). In addition, in the presence of

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The mechanisms for chiral recognition by cyclodextrins (CDxs) are discussed. Examples of host-guest systems where the 'lock-and-key mechanism' and the 'three-point rule' are applicable are cited and discussed. Most results reported so far suggest that the ability of native CDxs and chemically modifi